Review
Energy & Fuels
Peng Qian, Minghou Liu
Summary: Micro-thermophotovoltaic and micro-thermoelectric systems have attracted extensive attention for their compact configuration, no mechanical noise, wide fuel applicability, and high energy density. The focus of research has been on micro-combustors, with concerns about wall temperature and flame stability. Various micro-combustors with different designs have been proposed, but the effects of influential parameters need to be analyzed and summarized for further research.
Article
Chemistry, Physical
Xiao Yang, Bo Yu, Wenming Yang, Huaichun Zhou
Summary: In the field of micro and mesoscale combustion, the study provides a comprehensive heat transfer analysis in cylindrical combustors from the perspective of numerical simulation. The results show that the proportion of radiative heat flux increases with an increasing diameter, and thermal radiation can change the location of the flame front in larger diameter combustors.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Lingjie Gao, Tao Cai, Aikun Tang, Haibo Liu
Summary: In this study, the joint effect of applying Pt catalyst and heat-recirculating structure on flame stability and thermal performance in methane-air-fueled micro-combustors was numerically investigated. The results showed that these strategies improved the outer wall temperature by 14.4% and extended the blowout limit by a factor of 0.6 compared to a non-catalytic combustor. The intensified heat transfer due to heterogeneous combustion chemistry and heat-recirculating effect contributed to these enhancements. The effectiveness of the heat recirculation structure on combustion performance was more significant than that of the catalytic combustion effect.
Article
Mechanics
Debjit Kundu, Arijit Bhattacharya, Sourav Sarkar, Sandip Sarkar, Achintya Mukhopadhyay
Summary: Micro-combustors, which are emerging as portable power sources, face challenges in flame stabilization due to heat losses. Hydrogen, as an eco-friendly fuel, shows potential for micro-combustors with its high calorific value. Numerical simulations were conducted to study the effects of different wall materials (glass, steel, and aluminum) on the dynamics of premixed lean hydrogen-air flames in a 2 mm wide channel. The wall materials play a crucial role in heat conduction, ignition, and flame stabilization.
Article
Thermodynamics
Jun Li, Hongcheng Xiao, Qingqing Li, Junrui Shi
Summary: The study aims to analyze heat fluxes in porous micro-combustors and discuss the effects of wall thermal conductivity and porous media properties on flame temperature. Results show that smaller porous micro-combustors have a higher proportion of heat recirculation relative to heat losses, and flame temperature is inversely related to the ratio of total heat losses to total heat recirculation.
Article
Engineering, Aerospace
Lei Sun, Yong Huang, Xiwei Wang, Zekun Zheng, Ruixiang Wang, Xiang Feng
Summary: The paper presents an innovative hybrid method based on the FV concept for quick prediction of the LBO limit of aircraft engines, which can improve prediction accuracy and achieve better accuracy compared to existing methods.
CHINESE JOURNAL OF AERONAUTICS
(2021)
Article
Thermodynamics
Wei Zuo, Yuntian Zhang, Qingqing Li, Jing Li, Zhu He
Summary: The study found that the micro-cylindrical combustor with cavity has better thermal performance compared to the one without cavity. By analyzing the effects of cavity length and depth, the optimal cavity size was determined, and it was concluded that the combustor with cavity has better potential for applications in micro-TPV systems.
Article
Mathematics, Applied
Arijit Bhattacharya, Somnath De, Sirshendu Mondal, Achintya Mukhopadhyay, Swarnendu Sen
Summary: Lean premixed combustors are prone to flame instability, which can have serious consequences. This study explores the use of a nonlinear dynamical tool, the recurrence network, to predict lean blowout. The results show that recurrence network parameters exhibit similar trends for different degrees of premixing, but the sensitivities and absolute trends differ between highly premixed and partially premixed configurations.
Article
Thermodynamics
Xinyi Chen, Shumeng Xie, Hannes Boettler, Arne Scholtissek, Wang Han, Dehai Yu, Christian Hasse, Zheng Chen
Summary: Simulations of forced ignition in hydrogen/air mixtures with electrodes and imposed flow provide insights into the mechanisms of turbulence-facilitated ignition (TFI). The presence of electrodes induces heat loss and affects the shape of the ignition kernel. Additionally, the movement of the ignition kernel away from the cold electrodes due to imposed flow reduces heat loss and flame curvature/stretch, facilitating ignition in mixtures with large Lewis number.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Zhenhua Tang, Zhirong Wang, Kun Zhao
Summary: This study investigates the flame stabilization characteristics of nitrogen-diluted hydrogen jet flames and proposes prediction models for flame lift-off distance and blowout limit.
Article
Engineering, Aerospace
Govindaraj Muthuselvan, Muralidhara Suryanarayana Rao, Venkat S. Iyengar, Manjunath Pulumathi, Sundararajan Thirumalachari, K. Srinivasan
Summary: The study found that an equivalence ratio of 0.79 in the primary combustion zone of a gas turbine combustor is optimal for high efficiency and low NOx emissions while maintaining flame stability. However, approaching the lean blowout limit can lead to intermittent low-frequency, high-amplitude pressure oscillations.
JOURNAL OF PROPULSION AND POWER
(2021)
Article
Energy & Fuels
Qingguo Peng, Jia Wei, Wenming Yang, E. Jiaqiang
Summary: The combustion characteristics and thermal performance of premixed H-2/C3H8/air in a micro planar combustor with a block insert were experimentally and numerically tested. The effects of hydrogen blended fraction, equivalence ratio, flow rate, and block width on flame stability and heat transfer were discussed and analyzed. The results showed that adding hydrogen improved combustion stability in the micro combustor, and the lowest hydrogen blending mole fraction for a steady flame of the premixed H-2/C3H8/air was obtained through experimental study.
Article
Thermodynamics
Xu Wen, Louis Dressler, Andreas Dreizler, Amsini Sadiki, Johannes Janicka, Christian Hasse
Summary: Large-eddy simulations were conducted for turbulent methane-hydrogen flames with different modeling approaches, showing varied predictions of flame properties in different regions. The performance of the flamelet models was explored by analyzing the differential diffusion parameter.
COMBUSTION AND FLAME
(2021)
Article
Chemistry, Physical
Dinggen Li, Renlang Wang, Gang Yang, Jianlong Wan
Summary: This study investigates the effect of hydrogen addition on the structure and stabilization of micro-jet methane diffusion flame through numerical simulation. The results show that hydrogen addition can make the flame more circular, suppress the increase in flame height with inlet velocity, and improve flame stabilization. However, excessive hydrogen addition may have detrimental effects on flame stabilization.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Chen Zhou, Aikun Tang, Tao Cai, Dan Zhao, Qiuhan Huang
Summary: The study found that hydrogen addition in a micro-planar combustor significantly affects flame shape and location, leading to the formation of a U-shaped flame that enhances combustion stability. The findings shed light on the enhanced mechanism of fuel-blended combustion in micro-combustor.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Thermodynamics
Zhijun Zhou, Qi Zhang, Liping Chen
Summary: This study focuses on determining intrinsic kinetic parameters and interpreting and simulating the rate profile of coal char. It analyzes the reactivity of coal char at different temperatures, discusses the weight loss process in non-isothermal conversion, and studies the effects of kinetic analysis methods. It also examines the rate profiles of isothermal conversion and the influence of particle temperature. Finally, an intrinsic reaction model is developed to reproduce the rate profile of isothermal conversion accurately.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Boya Zhang, Zheng Wang, Jiming Zhang, Yiming Dai, Chao Feng, Yuanjie Lin, Lei Zhang, Jianqiu Guo, Xiaojuan Qi, Xiuli Chang, Dasheng Lu, Chunhua Wu, Zhijun Zhou
Summary: This study aimed to evaluate the associations between prenatal perfluoroalkyl substances (PFAS) exposure and neuro-development in toddlers from 1 to 3 years of age. The results showed negative associations between prenatal PFAS concentrations and neurodevelopment measurements at specific ages. In boys, PFOA exposure was negatively associated with DQ z-score, while increased PFBS and PFHpA exposure were associated with elevated odds for the low-score trajectory group.
Article
Environmental Sciences
Jiayun Ding, Yiming Dai, Jiming Zhang, Zheng Wang, Lei Zhang, Sinan Xu, Ruonan Tan, Jianqiu Guo, Xiaojuan Qi, Xiuli Chang, Chunhua Wu, Zhijun Zhou
Summary: This study found significant associations between in utero PFAS levels and adipocytokine concentrations, suggesting that exposure to a mixture of PFAS during pregnancy may lead to decreased fetal leptin levels but increased adiponectin levels, with potential sex-specific effects.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Zhuoyou Gao, Zhijun Zhou, Mengying Wang, Ningzhao Shang, Wei Gao, Xiang Cheng, Shutao Gao, Yongjun Gao, Chun Wang
Summary: This study presents an efficient method to fabricate highly dispersed Pd-PTA/ZrO2 catalysts and demonstrates their superior catalytic performance for the hydrodeoxygenation of lignin-derivatives under mild conditions.
Article
Engineering, Biomedical
Guangwei Mao, Zhijun Zhou, Hao Su, Yaozhong Chen, Jianjun Zhang, Chiyuan Zhang, Zhigong Wang, Xiaoying Lu
Summary: This paper proposes an ESCS system for animal experimental study, which provides a fully implantable and programmable stimulating system for complete SCI rat model, along with a wireless charging power solution. The system consists of an implantable pulse generator (IPG), a stimulating electrode, an external charging module, and an Android application (APP) via a smartphone. The results of the animal experiment show that the stimulating system can work stably in SCI rats, effectively activating the lower limb muscles and providing an effective tool for studying the ESCS application in motor function recovery.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Agriculture, Multidisciplinary
Jie Li, Yushi Yang, Zhijun Zhou, Shuofeng Li, Lin Hao, Weihua Liu, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: A novel fluorine-functionalized triazine-based porous organic polymer (F-POP) was developed for the adsorption of aflatoxins. The F-POP demonstrated superior adsorption ability due to multiple interaction mechanisms, including hydrogen bond, F-O interaction, pi-pi interaction, F-pi interaction, and hydrophobic interaction. Furthermore, magnetic F-POP was prepared and used as a magnetic sorbent for the extraction of trace aflatoxins in peanut and rice samples.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Immunology
Jiaji Li, Jinrong Shi, Zhijun Zhou, Bo Yang, Jiamin Cao, Zhongsen Cao, Qiang Zeng, Zheng Hu, Xiaoming Yang
Summary: In this study, an antigen detection kit capable of identifying Omicron novel coronavirus mutants was developed using immunized BALB/c mice to obtain monoclonal antibodies with high specificity to the N protein of the Omicron mutant strain. The kit showed high sensitivity, strong specificity, no cross-reaction with common respiratory pathogens, and remained sensitive under the action of different concentrations of interferences, indicating good stability.
Article
Energy & Fuels
Huzhen Wang, Tiancheng Liu, Zhuangzhuang Sun, Chunyao Wang, Yangang Zhang, Yulin Chen, Zhenyu Liu, Zhijun Zhou
Summary: In ultralow permeability tight oil reservoirs, the fracturing scale of multistage fractured horizontal wells (MFHWs) is relatively large, and the artificial fracture system is generally more complex. Numerical methods have unique advantages in characterizing the stimulated area in detail. A numerical model was established to study the influence of the width and permeability of the stimulated area on the pressure response of MFHWs. The analysis shows that the conductivity of the main fractures plays a crucial role in the transient pressure response and development of MFHWs.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Environmental Sciences
Bing Zhang, Yuwei Zhang, Zhenzi Zuo, Guiya Xiong, Huan Luo, Bo Song, Lina Zhao, Zhijun Zhou, Xiuli Chang
Summary: Neurogenesis is a vital process in the nervous system development, and it is regulated by mitochondrial dynamics. Imbalanced mitochondrial dynamics caused by oxidative stress have been associated with various neurological disorders. In this study, we examined the effects of PQ, a neurotoxic agricultural chemical, on neurogenesis in primary murine neural progenitor cells. Our results showed that PQ inhibited cell proliferation, migration, and neuronal differentiation in a concentration-dependent manner. PQ induced excessive mitochondrial fragmentation and altered the expression of proteins involved in mitochondrial dynamics. Inhibiting mitochondrial fission and using a mitochondria-targeted antioxidant could mitigate the adverse effects of PQ on neurogenesis. These findings suggest that mitochondrial fission could be a potential therapeutic target for PQ-induced neurotoxicity.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Zheng Wang, Jiming Zhang, Yiming Dai, Lei Zhang, Jianqiu Guo, Sinan Xu, Xiuli Chang, Chunhua Wu, Zhijun Zhou
Summary: Prenatal exposure to PFAS, particularly PFNA, was found to be positively associated with birth size. Cord serum TSH was identified as a mediator in this association. These findings suggest that PFAS exposure may affect fetal growth through the modulation of endocrine hormones.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Applied
Mingming Xu, Zhijun Zhou, Lin Hao, Zhi Li, Jie Li, Qianqian Wang, Weihua Liu, Chun Wang, Zhi Wang, Qiuhua Wu
Summary: Three novel hyper-crosslinked polymers with large specific surface area and excellent chemical stability were fabricated using heterocyclic phenyl-imidazole as monomer. These polymers were used as solid phase extraction adsorbent for sensitive determination of aflatoxins in rice samples. The established method provided wide linear range, low detection limit and satisfactory recovery, and the adsorption mechanism was explored. This work provides a powerful tool for simultaneous determination of aflatoxins in food grains with great application potential in aflatoxin monitoring.
Article
Engineering, Electrical & Electronic
Zhijun Zhou, Keping Wang, Longbin Zhu, Rui Yang, Jihong Li, Wenjie Wang, Yuhao Xu, Zhigong Wang
Summary: This brief introduces a differential difference amplifier (DDA) with a pseudo-differential (PD) common-mode feedback (CMFB) for neural signal recording. The DDA includes two input transconductors, one connected to the target neural signal for high input impedance, and another employing a self-stabilized topology for stability and cutoff frequency determination. The use of PD terminal in CMFB increases the common mode rejection ratio (CMRR) by a factor of differential-mode gain without affecting voltage headroom and dynamic range. This PD CMFB is suitable for multi-channel neural signal acquisition, with higher CMRR for more channels. The proposed DDA, designed in a 0.18-mu m CMOS technology, achieves high input impedance, high CMRR, and low power consumption.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2023)
Article
Evolutionary Biology
Qidi Zhu, Zhijun Zhou, Qi Guo, Yanhao Duan, Haijian Wang, Fuming Shi
Summary: This study provides the first phylogenetic and biogeographical analyses of Diestramimini, showing its sister-group relationship with Diestramima + Tamdaotettix and Arboramima + Gigantettix. A new genus, Bidiestramima, is established and a new species, Bidiestramima hekouensis, is described. The diversification of Diestramimini is attributed to dispersal and vicariance events influenced by the uplift of the Himalaya-Tibetan Plateau, the formation of the monsoon, and climate fluctuations.
Article
Microbiology
Qing-mei Li, Dai Zhang, Ji-zong Zhang, Zhi-jun Zhou, Yang Pan, Zhi-hui Yang, Jie-hua Zhu, Yu-hua Liu, Li-feng Zhang
Summary: Continuous cropping of the same crop leads to soil degradation and a decline in crop production, but these impacts could be mitigated through rotation cropping. This study compared the effects of potato continuous cropping and rotation cropping (potato-oat and potato-forage maize) on soil ecosystem multifunctionality (EMF). The results showed that rotation cropping enhanced soil EMF, microbial diversity, and potato yield.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Engineering, Chemical
Yuzhe Cao, Zhijun Zhou, Tongyu Zhang, Zejuan Ni, Bo Ge, Hao Zhang, Guina Ren, Xin Shao, Zhaozhu Zhang
Summary: A solar-driven photothermal evaporation device with salt-resistance and the ability to remove dye and oil slicks has been developed to overcome the limitations of existing devices. The device uses a superhydrophobic part to eliminate dye and oil slicks, protecting both the device and the environment. It achieves a purification efficiency of over 99.9% for heavy metal ions and Rh B solution. The device also demonstrates high evaporation rates under one sun illumination for different water sources, indicating its potential for desalination and wastewater purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Thermodynamics
Cong Li, Jiali Wang, Chenhui Wang, Yanke Jin, Yina Yao, Rui Yang
Summary: This study investigates the impact of NaCl water droplets with various concentrations on a heated surface. The results show that the impact patterns can be categorized into different types, and models are established to predict the spreading behavior of droplets with different concentrations. Additionally, high concentration droplets exhibit more violent boiling and have lower residual energy and rebound time.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
C. Barrera, V. Castro, F. Escudero, J. J. Cruz, I. Verdugo, J. Yon, A. Fuentes
Summary: This study focuses on the characterization of soot maturity and sooting propensity of anisole fuel in a controlled laminar coflow diffusion flame. The results show that the spatial distribution of soot volume fraction is enhanced near the flame centerline, while soot production is promoted near the flame wings. The temperature increase also affects the maturity of soot particles.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Roman W. Morse, Jason Chan, Tiago A. Moreira, Jared J. Valois, Evan T. Hurlburt, Jean-Marie Le Corre, Arganthael Berson, Kristofer M. Dressler, Gregory F. Nellis
Summary: This study investigates the dryout of liquid film and the role of disturbance wave frequency. Experimental results indicate that the heat transfer coefficient associated with optimal boiling conditions is maximized when the surface is dry 5% of the time, independent of pulse amplitude and frequency. Liquid-film measurements, dryout statistics, and direct observation suggest that disturbance-wave frequency can be manipulated by density-wave oscillations in the flow field.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
E. J. Vega, J. M. Montanero
Summary: In this study, we experimentally investigated the bursting of a bubble covered with a surfactant. We found that the bubble bursting time is longer compared to a surfactant-free bubble due to interfacial elasticity. Furthermore, the Marangoni stress drives liquid flow that allows the jet to escape from the end-pinching mechanism within a certain surfactant concentration range.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Guofu Sun, Yi Zhan, Tomio Okawa, Mitsuhiro Aoyagi, Akihiro Uchibori, Yasushi Okano
Summary: Experiments were conducted on liquid jets ejected from oval nozzles to investigate the effects of nozzle orifice shape on jet behavior. The study found that the liquid jet exhibited different characteristics at different liquid flow rates. Correlations were established to predict the liquid jet state and characteristics of the secondary droplets produced during jet impact onto a solid surface. This research extended the available knowledge on liquid jet behavior.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Jeonghoon Lee, Laurent Zimmer, Takeshi Saito, Shinji Nakaya, Mitsuhiro Tsue
Summary: This study investigates the effects of spatial resolution on DMD amplitudes and spatial mode strengths, and proposes scaling factors to correct for the resolution differences. The results show that the proposed scaling factors successfully normalize the amplitudes and spatial modes, allowing for quantitative comparison of data obtained with different spatial resolutions. This study is significant for analyzing spatiotemporal data in various fields.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Yanli Zhao, Shibing Kuang, Xiaoliang Zhang, Mingjun Xu
Summary: This study experimentally investigates the dynamic process of water droplet impacting different wood surfaces and analyzes and discusses the impacting phenomena, phenomena distribution, droplet spreading dynamics, and maximum spread factor. The results show that the impacting process can be distinguished by Weber numbers and Reynolds numbers, and can be predicted by mathematical expressions.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Aakhash Sundaresan, Atul Srivastava, Callum Atkinson
Summary: This study presents the first-ever application of an advanced methodology, combining two-color laser-induced phosphorescence and particle image velocimetry, to investigate the heat transfer mechanisms on the surface of a cylinder placed inside a confined square duct. The technique allows for simultaneous measurement of velocity and temperature fields, reducing the complexity and costs associated with separately measuring temperature distributions. Experimental observations show that increasing the mass flow rate enhances heat removal from the cylinder surface, and increasing the cylinder heat input enhances heat transfer in the rear portion of the cylinder.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Harish K. Patel, Sukhjeet Arora, Rutuja Chavan, Bimlesh Kumar
Summary: This study experimentally analyzed the multiscale statistical assessment of scour depth surrounding spur dikes with downward seepage. The research found that seepage affects the morphological behavior and hydrodynamic characteristics of the channel bed, leading to changes in scour formation. The rate of scour depth changes initially increases with higher seepage velocity but eventually becomes constant over time.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Justas Sereika, Paulius Vilkinis, Gediminas Skarbalius, Algis Dziugys, Nerijus Pedisius
Summary: This study experimentally investigated the pulsatile flow structure based on a transitional-type cavity. It was found that the pulsation amplitude has a more significant effect on the dynamics of recirculation zone than the pulsation frequency. Pulsatile flow can reduce the size of the recirculation zone.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Merav Arogeti, Eran Sher, Tali Bar-Kohany
Summary: This study provides a detailed exploration of the events that occur when a droplet hits a dry solid surface of various small sizes, with a focus on the deposition, receding breakup, and prompt splash phases. By utilizing non-dimensional analysis and graphical representation, the boundaries between different events are defined, and criteria for differentiation based on target-to-drop ratio, Reynolds, and Webber numbers are presented.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Tianxiong Li, Fei Wen, Yingchun Wu, Botong Wen, Lei Wang, Jinxin Guo, Xuecheng Wu
Summary: This study investigates the structure of the flow field induced by a strut in a scramjet and its influence on flame stabilization. Experimental and numerical analyses reveal that the flow field exhibits features beneficial for flame stabilization, but the asymmetry of the flow poses a challenge to flame establishment.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Syed Ehtisham Gillani, Yasir M. Al-Abdeli
Summary: This study investigates the asymmetry in bluff-body stabilised annular jets and finds that swirl can significantly mitigate the asymmetry and restore the symmetry of the jets. Moreover, increasing the Reynolds number and the swirl intensity can both decrease the asymmetry of the jets.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Utsav Bhardwaj, Rabindra Kumar, Shyama Prasad Das
Summary: This study presents an experimental investigation on flooding phenomenon in a pulsating heat pipe (PHP) unit cell, and analyzes the impact of flooding on the performance of PHP. The study recognizes three different flooding mechanisms and finds that currently accepted correlations for predicting flooding velocity are inaccurate. The study emphasizes the need for further research on flooding in PHPs.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Yunpeng Xue, Yongling Zhao, Shuo-Jun Mei, Yuan Chao, Jan Carmeliet
Summary: This study investigates the impact of building morphology on local climate, air quality, and urban microclimate. The researchers conducted an experimental investigation in a large-scale water tunnel, analyzing heat and flow fields using Laser-induced Fluorescence (LIF) and Particle Image Velocimetry (PIV). The findings show that factors such as canyon configuration, buoyant force, and approaching flow magnitude significantly influence fluid flow in street canyons, and the morphology of the street canyon dominates ventilation rate and heat flux. For example, changing the aspect ratio of a street canyon can lead to a significant change in air ventilation rate, ranging from 0.02 to 1.5 under the same flow conditions.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
