Article
Mechanics
Roberto M. de la Cruz, Simo A. Makiharju
Summary: The study investigated how water behaves when a jet impacts surfaces with different levels of hydrophobicity, revealing that gravity, surface tension, inertia, and viscosity all play a role in determining the outcome. On hydrophilic surfaces, water spreads uniformly, while on hydrophobic surfaces, two rims enclose a thin laminar film.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Engineering, Marine
Taiji Tanaka, Yoshihiko Oishi, Hyun Jin Park, Yuji Tasaka, Yuichi Murai, Chiharu Kawakita
Summary: The study demonstrated that air lubrication with repetitive bubble injection achieved superior efficiency in drag reduction compared to continuous bubble injection.
Article
Engineering, Chemical
Zihan Yuan, Shuyan Wang, Baoli Shao, Lei Xie, Yujia Chen, Yimei Ma
Summary: In this study, a two-fluid model combined with the kinetic theory of granular flow is used to simulate power-law fluid-solid two-phase flow in a fluidized bed. Two new power-law liquid-solid drag models are proposed, with model B showing closer agreement with experimental data.
Article
Mechanics
Darren G. Crowdy
Summary: This study presents analytical solutions for longitudinal flow in an annular superhydrophobic pipe with one side being a fully no-slip wall and the other side decorated with longitudinally striped no-shear pattern. It shows how these solutions generalize previous solutions to mixed boundary value problems, providing insights into the hydrodynamic slip enhancement in superhydrophobic surfaces. The study also highlights the importance of maximizing uninterrupted no-shear regions for optimal slip performance in designing slippery pipes.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Engineering, Mechanical
Min Xiang, Houcun Zhou, Xiaoyu Zhao, Bo Liu
Summary: This study focuses on understanding the transient dynamics of a ventilated supercavity with jetting flow at the tail. Experiments are performed to record the evolution of the gas-liquid interface under different jetting flow rates. A compressible multiphase model is used to study the flow pattern in depth. The results show that the flow field transitions through different modes as the jet velocity increases.
ACTA MECHANICA SINICA
(2022)
Review
Engineering, Chemical
Allessandro Utomo, Achmad Riadi, Gunawan, Yanuar
Summary: This research explores the reduction of fluid resistance using the rheological characteristics of a polymer-surfactant solvent, covering various aspects such as theory, historical background, and ongoing research development. Through literature studies and experimental/theoretical approaches, it examines the effects of drag reducing agents on flowing fluids in smooth circular straight pipe geometries. It concludes with discussions on reducing drag, innovative ideas, testing methodologies, and improvements in fluid flow states.
Article
Engineering, Chemical
Boxue Pang, Shuyan Wang, Huilin Lu
Summary: An improved drag model for power-law fluid-particle flow, taking into account the effects of rheological properties, was proposed in this study. The model was validated through numerical simulations under different particle concentrations, showing that the increase in flow behavior index and consistency coefficient leads to higher drag coefficient between phases and lower average particle concentration within the bed.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Thermodynamics
Hedilberto A. A. Barros, Romulo L. P. Rodrigues, Rafael F. Alves, Cristiane Cozin, Hendy T. Rodrigues, Roberto da Fonseca Jr, Marco J. da Silva, Moises A. Marcelino Neto, Rigoberto E. M. Morales
Summary: This study presents experimental research on gas-liquid two-phase slug flow pattern in pipes with slight direction change. The study found that slug flow tends to modify itself by changing its features or transitioning to another flow pattern. Three different phenomena of slug dissipation were observed: gas plug, stratification, and wave flooding.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2022)
Article
Engineering, Chemical
Mohammad Amin Tarahomi, Mohammad Emamzadeh, Mohammad Ameri
Summary: This research proposes an approach to downscale field pipelines into experimental facilities and validates its effectiveness through numerical simulations. The results contribute to the understanding of scaled-down experiments for various flow conditions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Engineering, Marine
Xinwei Zhang, Yubo Hu, Yonggang Yu
Summary: This paper investigates the effect of starting conditions on the internal flow field and interior ballistic performance of an underwater ventilated launcher. A three-dimensional unsteady model of gas-liquid two-phase flow and an interior ballistic program are established, and a coupling model between interior ballistic and gas-liquid interaction is developed. The results show that adjusting the gas injection pressure and projectile starting pressure can effectively regulate the drainage and resistance reduction effect, providing recommendations for future underwater launchers.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Chemical
Youfang Ma, Youfu Ma, Junfu Lyu, Weiye Liu
Summary: This study experimentally investigated the pressure drop of wet gas across a single-orifice plate in the low Fr-G region. The flow pattern transition and the effects of Fr-G and Fr-L on Phi G were determined and compared. Existing models were found to be unable to predict the wet gas pressure drop accurately, and new correlations were proposed for the low Fr-G region, with the modified Chisholm model showing the best prediction accuracies.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Mechanics
W. Liu, H. Hassanzadeh, F. Larachi, S. M. Taghavi
Summary: We experimentally investigate buoyant immiscible displacement flows in a rotating pipe and analyze key flow features using image processing and ultrasound Doppler velocimetry techniques. The emergence of heavy fluid fronts and the effect of rotation speed on the displacement flows are observed. Dimensional analysis reveals that the displacement flow is governed by four dimensionless parameters. The classification of flow regimes and interfacial instabilities are achieved, and the Kelvin-Helmholtz instability is found to be the main interfacial instability. The velocity fields in stationary and rotating pipes are found to have remarkable differences, and the Fourier transform approach provides a preliminary understanding of concentration waves and amplitudes.
Article
Computer Science, Interdisciplinary Applications
Nikolas Fischer, Thomas Becker, Ehsan Fattahi
Summary: In this study, extensive numerical simulations are conducted to calculate the non-dimensional drag for various fluid indices and volume fractions of packed spheres. A model function is developed based on the numerical results to predict the drag force and coefficient of shear-thinning or shear-thickening fluid flowing through different structures. The proposed model shows excellent agreement with the numerical simulations, with deviations not more than 1.2%, indicating its validity for all investigated structures.
COMPUTERS & FLUIDS
(2023)
Article
Engineering, Chemical
Li Wang, Longxuan Yan, Yang Liu, Zhenghao Liu, Shixing Chen, Lanjie Niu, Bingheng Lu
Summary: Superhydrophobicity is commonly used to reduce drag in pipeline transportation and prevent metal corrosion. Interfacial slip is the main factor contributing to hydrophobic surface drag reduction. Investigating the impact of wetting state on interfacial slip is crucial, and this study used an electric field to control the wetting state. Microchannel and micro-particle image velocimetry technologies were employed to examine the effect of different wetting states on interfacial slip characteristics and understand the underlying mechanism. Transitioning from the Cassie contact state to the Wenzel contact state resulted in a downward movement of the gas-liquid contact interface and weakened interface slip. Achieving the Wenzel contact state by filling the liquid to the bottom of the structure eliminated the gas-liquid interface and interface slip, leading to the loss of drag reduction effect for the hydrophobic surface.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Mechanics
Haichang Yang, Binglin Zeng, Xuehua Zhang, Yaowen Xing, Xiahui Gui, Yijun Cao
Summary: Enhancing boundary slip using interfacial nanobubbles (INBs) has been extensively studied in nanofluidic transport. This study investigates the influence of INBs on boundary conditions for both smooth and rough substrates using molecular dynamics simulations. The results show that INBs increase the slip length on a smooth substrate, with a linear increase observed with increasing surface coverage. On a rough substrate, the protrusion angle, quantity, and fluidity of INBs play a crucial role in determining the slip length. In addition, the fluidity of gas molecules inside the INBs dominates the enhancement of slip length.
Article
Chemistry, Multidisciplinary
Lin-tong Hou, Shuo Liu, Jian Zhang, Jing-yu Xu
Article
Environmental Sciences
Shiying Shi, Zhongliang Su, Liming Lin, Jingyu Xu, Yunteng He, Sheng Wang, Shijun Shi
JOURNAL OF COASTAL RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Jian Zhang, Qi-lin Wu, Shuo Liu, Jing-yu Xu
Article
Engineering, Chemical
Shuo Liu, Jian Zhang, Lin-tong Hou, Jing -yu Xu
Summary: The study investigated the variation regularity of characteristic droplet diameters in swirling flow field through experimental research and numerical simulations. The results revealed a bilinear relationship between the section average d(32) and the turbulent energy dissipation rate, a quadratic relationship between the section average d(90) and the swirling number, and a linear relationship between the d(5) and the swirling number. These characteristic droplet diameters were found to be sensitive to various operating parameters and oil properties.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Dong Zhang, Shuo Liu, Jian Zhang, Lin-tong Hou, Jing-yu Xu
Article
Chemistry, Multidisciplinary
Meng Yang, Shuo Liu, Wan-hai Xu, Jing-yu Xu
Article
Engineering, Chemical
Wenqi Ke, Lintong Hou, Lisong Wang, Jun Niu, Jingyu Xu
Summary: This study established a new model of liquid-film reversal in gas wells, considering the influences of pipe angle and friction coefficient of the gas-liquid interface. Experimental results showed that the interfacial shear force increases with the liquid superficial velocity, affecting the critical liquid-carrying gas velocity and production rate.
Article
Chemistry, Multidisciplinary
Wei An, Qingfan Zhang, Jianping Zhao, Liang Qu, Shuo Liu, Meng Yang, Jingyu Xu
Summary: The novel skimmer is able to effectively recover spilled oil on the sea surface and speed up the recovery process. The experimental results show a linear relationship between recovery efficiency and split ratio, and the oil content at the overflow port is influenced by spilled oil amount and split ratio.
Article
Mechanics
Li-song Wang, Shuo Liu, Lin-tong Hou, Meng Yang, Jian Zhang, Jing-yu Xu
Summary: This study introduces a simplified model and a unified model for predicting the critical gas velocities of film reversal. The simplified model offers a balance between simplicity and high accuracy, while the unified model considers more details and is more rigorous, aiding in understanding the mechanism of film reversal.
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
(2022)
Article
Engineering, Chemical
Nian-Hui Wan, Li-Song Wang, Lin-Tong Hou, Qi-Lin Wu, Jing-Yu Xu
Summary: A transient model using the finite difference method to simulate temperature and pressure in CO2 injection wells is proposed. The maximum error between simulated and measured results is 5.04%. The phase state is primarily controlled by the wellbore temperature, and increasing injection temperature or decreasing injection rate can help achieve the supercritical state.
Article
Engineering, Chemical
Lintong Hou, Dong Zhang, Meng Yang, Shuo Liu, Jingyu Xu
Summary: The flow characteristics and wall slip phenomenon of gas-liquid-solid mixtures in horizontal pipes were investigated. The critical liquid velocity for flow structure transformation was found to be between 0.75 and 1 m/s. The injection of gas reduced drag to a certain extent. However, the relative slip contribution increased and then decreased with an increase in the superficial gas velocity. The pressure gradient and wall slip velocity were sensitive to gas and liquid phase velocities, phase volume fraction, and pipe conditions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Mechanics
Jian Zhang, Yun-teng He, Shuo Liu, Jing-yu Xu
Summary: Cylindrical cyclones with a vortex finder are commonly used in the petroleum industry for oil-water separation. This study utilized dimensional analysis and multiphase flow numerical simulation to analyze the separation process in such cyclones. The results showed that the diameter of the overflow pipe, inlet velocity, and flow split ratio significantly influenced the structure of the vortex core. Increasing the diameter of the oil droplet improved the separation efficiency, while increasing the overflow split ratio decreased the oil volume fractions in the outlets.
Article
Energy & Fuels
Lele Yang, Lian Luo, Jing Wang, Jingyu Xu, Zhenfeng Zhai
Summary: This paper introduces a pressure control scheme for GLCC to achieve fast and stable gas-liquid separation. Experimental results show that increasing liquid superficial velocity only increases the distribution of small droplets, and the droplet size distribution at high dimensionless pressure is larger compared to that at low dimensionless pressure.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Applied
Jun Niu, Shuo Liu, Jing-Yu Xu
CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY
(2020)
Article
Engineering, Chemical
Shuo Liu, Jian Zhang, Li-Song Wang, Jing-Yu Xu
SEPARATION AND PURIFICATION TECHNOLOGY
(2020)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)