Article
Nuclear Science & Technology
Octavio Bovati, Yassin Hassan
Summary: This paper presents the results of Computational Fluid Dynamics (CFD) simulations on the flow behavior of a wire-wrapped fuel bundle with porous blockages in a Liquid-Metal Fast Reactor (LMFR). The simulated results showed reasonable agreement with experimental data, providing insights into the flow characteristics of LMFR reactors under the presence of porous blockages.
NUCLEAR ENGINEERING AND DESIGN
(2023)
Article
Geography, Physical
Sheng Yang, Mingyi Zhang, Wansheng Pei, Andrey Melnikov, Ze Zhang, Zhilang You
Summary: This study developed a numerical model to investigate the distribution of snowdrift around a road and evaluate the snow prevention efficiency of a snow fence. The results showed that the installation of a snow fence can reduce snow accumulation on the leeward side of an embankment and decrease the snow phase volume fraction near the ground.
Article
Materials Science, Multidisciplinary
Hao Liu, Ying Xu
Summary: In this study, the permeability and inertia coefficient of different porous graphite materials were determined using an experimental fitting method and computational fluid dynamics modeling. The experimental results showed that the Compressible-Darcy-Forchheimer equation was able to fit the data well. SG-5 and SG-8 porous graphite exhibited good permeability consistency and are suitable for making porous media air bearings.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Engineering, Biomedical
Zhuxun Tang, Yueting Zhou, Lifang Ma, Jian Li
Summary: This study aims to investigate the effects of three porous structures on the flow properties of implants at different porosity. Computational fluid dynamics was used to simulate the flow performance of the three different scaffolds, and the physical parameters and performance were compared. The results showed that the pore shape and porosity greatly affected the physical parameters and performance of the structures.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2023)
Article
Engineering, Environmental
Likun Ma, Qiang Guo, Xue Li, Shuliang Xu, Jibin Zhou, Mao Ye, Zhongmin Liu
Summary: This study bridges the gap between drag correlations for monodisperse arrays of spheres and porous spheres by considering permeability effects and using symbolic regression methods. New drag correlations with high prediction accuracy and physical basis were derived for both porous spheres and monodisperse arrays of spheres using experimental data and PR-DNS data. The proposed drag correlations provide a simple yet accurate way to quantify heterogeneous structures in fluidized beds and can be validated with experimental data.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Seo-Yong Shin, Myoung-Ho Kim, Yongjin Cho, Dae-Cheol Kim
Summary: The winnowing machine developed in this study aims to address the issue of low separation between chili pepper stems and fruits. Through terminal velocity measurement and aerodynamic analysis, optimal conditions for separating foreign materials were determined.
APPLIED SCIENCES-BASEL
(2022)
Article
Computer Science, Interdisciplinary Applications
Peng Yin, Yongjun Hou, Xianjin Wu
Summary: This paper aims to obtain the combination of working parameters suitable for pulsating negative pressure shale shaker through simulation, for efficient recovery of clean drilling fluid and relatively dry cuttings. The study found that vibration parameters mainly affect particle conveyance velocity, while pulsating negative pressure effectively prevents cuttings from sticking to the screen. Vibration parameters and pulsating airflow velocity have a significant impact on the percent through screen.
ENGINEERING COMPUTATIONS
(2022)
Article
Engineering, Chemical
Anshi Hong, Zisheng Zhang, Xingang Li, Xin Gao
Summary: A hybrid multiphase model is developed to simulate the simultaneous transfer of momentum, heat, and mass, as well as heterogeneous catalyzed reactions in structured catalytic porous materials. The model combines the volume of fluid (VOF) and Eulerian-Eulerian models, along with self-defined field functions, to overcome convergence difficulties in multi-domain problems. The results reveal the conditional coupling between catalytic reactions and mass transfer at the phase interface, and the significant influence of the coupling between catalytic reactions and momentum transfer on the conversion rate of reactants. A strategy for matching solid catalysts with operating conditions in catalytic distillation applications is proposed based on the numerical results.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Ken Fujii, Naoko Yoshida, Kohei Miyazaki
Summary: This study proposed a method to calculate the effect of fluid flow on MFC current production from sewage wastewater, finding that higher flow velocity resulted in higher current production. The modified Michaelis-Menten equation integrating COD and flow velocity demonstrated the production of current by MFC under different conditions.
BIOELECTROCHEMISTRY
(2021)
Article
Thermodynamics
Mohammad Hossein Zolfagharnasab, Mona Zamani Pedram, Siamak Hoseinzadeh, Kambiz Vafai
Summary: This study numerically investigates several porous-filled shell and tube heat exchangers (STHXs) and finds that porous filling can improve heat transfer performance and achieve a homogeneous thermal distribution, but it also increases pressure loss. Partially porous-filling is suitable for low-scale applications.
APPLIED THERMAL ENGINEERING
(2022)
Article
Engineering, Chemical
Hao Luo, Chao Zhang, Zeneng Sun, Jesse Zhu
Summary: The study utilized a CFD model to examine the hydrodynamics of a liquid-solid circulating fluidized bed (LSCFB). Numerical simulations were conducted under various operating conditions, showing correct trends and good agreements with experimental data. The results indicated the presence of radial non-uniformity and axial uniformity in flow structures, with various factors such as superficial velocities and particle densities affecting the flow distribution.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Thermodynamics
Zahir U. Ahmed, Md Roni Raihan, Omidreza Ghaffari, Muhammad Ikhlaq
Summary: This paper numerically investigates the thermal and hydraulic characteristics of a porous microchannel heat sink using various nanofluids. The study examines the effect of porosity, inlet velocity, and nanoparticle concentration on the thermal-hydraulic performance.
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS
(2022)
Article
Thermodynamics
Jie Yang, Shanshan Zhang
Summary: This study investigated the effects of air velocity and human body angles on the convective heat transfer coefficient (hc) of the whole body and body segments. The results showed that hc values increased exponentially with air velocity. Additionally, the human body angle had a significant effect on the hc of body segments.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Asier Bengoechea, Raul Anton, Alejandro Rivas, Gorka S. Larraona, Juan Carlos Ramos
Summary: This study presents an approach to flow pattern using a compact model based on pressure loss coefficients, showing a significant decrease in the amount of time invested in obtaining an approximate flow pattern analysis in electronic devices with perforated plates downstream of axial fans.
APPLIED SCIENCES-BASEL
(2021)
Article
Thermodynamics
Mahmoud Elhalwagy, Anthony Gerald Straatman
Summary: This article presents an enhanced wall-like treatment (EWT) for simulating conjugate fluid-porous domains using a conjugate volume-averaged approach. The EWT model utilizes the Boussinesq approach and the standard k-e model to treat turbulence in the clear fluid region and a double-decomposed k-epsilon porous media model inside the porous material. An implicit interface coupling between fluid and porous regions is utilized by modifying turbulence behavior at the fluid/porous interface to handle low-permeability porous materials. The EWT method showed better physical behavior than other approaches in low-permeability (and porosity) cases without the need for jump coefficients or tuning.
JOURNAL OF POROUS MEDIA
(2023)
Article
Agricultural Engineering
Xinjie Tong, Se-Woon Hong, Lingying Zhao
BIOSYSTEMS ENGINEERING
(2019)
Article
Agricultural Engineering
Xinjie Tong, Se-Woon Hong, Lingying Zhao
BIOSYSTEMS ENGINEERING
(2019)
Article
Agriculture, Multidisciplinary
Xinjie Tong, Se-Woon Hong, Lingying Zhao
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2019)
Article
Agricultural Engineering
Taehwan Ha, In-bok Lee, Se-Woon Hong, Kyeong-Seok Kwon
BIOSYSTEMS ENGINEERING
(2019)
Article
Energy & Fuels
Ercan Atam, Se-Woon Hong, Alessia Arteconi
Article
Agricultural Engineering
Rack-woo Kim, Se-woon Hong, Tomas Norton, Thomas Amon, Ali Youssef, Daniel Berckmans, In-bok Lee
BIOSYSTEMS ENGINEERING
(2020)
Review
Agronomy
Se-woon Hong, Jinseon Park, Hanna Jeong, Seyeon Lee, Lakyeong Choi, Lingying Zhao, Heping Zhu
Summary: This paper reviews the literature on fluid-mechanical-based modeling of spray drift resulting from ground spray applications, providing a comprehensive understanding of the transition and development of fluid dynamic approaches and the future directions in this research field.
Article
Cell & Tissue Engineering
Yonghyun Gwon, Woochan Kim, Sunho Park, Sewoon Hong, Jangho Kim
Summary: In this study, a new strategy was proposed to design and fabricate small gelatin nanoparticles (GNPs) with average size less than 100 nm, maintaining gelatin properties and confirming drug release profiles. The results suggest that these small GNPs could serve as efficient platforms for drug and gene delivery as well as tissue engineering in various biomedical applications.
TISSUE ENGINEERING AND REGENERATIVE MEDICINE
(2022)
Article
Environmental Sciences
Sangmin Oh, Seung-Gi Kim, Jae Bong Lee, Junsu Park, Joon-Bum Jee, Se-Woon Hong, Kyeong-Seok Kwon, Mijung Song
Summary: This study revealed the spatial distribution of atmospheric NH3 in a rural area of South Korea and its influence on NH3 levels in nearby urban areas, showing significant differences in NH3 concentrations at different sites and higher peak concentrations in rural environments compared to urban areas.
Article
Agronomy
Jinseon Park, Se-yeon Lee, Lak-yeong Choi, Se-woon Hong, Hyunho Noh, Seung-Hwa Yu
Summary: Pesticide drift during application can have adverse effects on humans, the environment, and ecosystems. This study evaluated the collection efficiency of two airborne-spray-drift collectors and found that nylon screens and passive samplers effectively captured airborne spray drift.
Article
Agriculture, Dairy & Animal Science
Se-yeon Lee, Lak-yeong Choi, Jinseon Park, Kehinde Favour Daniel, Se-woon Hong, Kyeongseok Kwon, Okhwa Hwang
Summary: This study evaluated ventilation rates and efficiency in research-scale pig houses with different inlet and exhaust configurations. The results showed that certain combinations performed better in terms of ventilation rates, but the actual rates were lower than expected. The study found that the side exhaust fan closer to the pig activity area was more effective in providing fresh air, and the ceiling inlet had better air distribution. This study highlights the importance of choosing the right ventilation setup for a healthy environment for both pigs and workers.
Article
Agriculture, Dairy & Animal Science
Lak-Yeong Choi, Se-Yeon Lee, Hanna Jeong, Jinseon Park, Se-Woon Hong, Kyeong-Seok Kwon, Mijung Song
Summary: This study investigated the levels of pollutants emitted by a commercial pig farm in Korea, primarily ammonia and particulate matter (PM). The study found that previous guidelines in Korea might have overestimated these pollution levels, although the current findings are consistent with global research. Seasonal variations and factors such as the number and age of the pigs significantly influenced these emission levels. Continued research will help improve pig farming practices and preserve the environment.
Article
Agriculture, Dairy & Animal Science
Se-Woon Hong, Jinseon Park, Hanna Jeong, Minseok Kim
Summary: The study investigated the microbiome in particulate matter (PM) from pig houses in Korea, finding that the microbial composition in PM inside and outside of pig houses is similar, suggesting leakage of microbe-containing PM from inside to outside. The study also observed that certain genera, including Lactobacillus, Turicibacter, and Aerococcus, differed significantly between PM samples from inside pig houses and outside samples. Additionally, there was no significant difference in PM concentration among the different sample types, and no correlation was found between PM concentration and the abundance of potential pathogens.
JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY
(2021)
Proceedings Paper
Automation & Control Systems
Jeongeun Kim, Jeahwi Seol, Sukwoo Lee, Se-Woon Hong, Hyoung Il Son
2020 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION (ICRA)
(2020)
Article
Agricultural Engineering
R. M. Knight, X. Tong, Z. Liu, S. Hong, L. Zhao
TRANSACTIONS OF THE ASABE
(2019)
