Results 71 to 80 of about 2,592,636 (290)

Polymorphic Superparaelectric Engineering Boosting Energy Storage Capacity in BaTiO3‐Based Ceramics

Advanced Science, EarlyView.
Herein, Ca2+ incorporation promotes the coexistence of CaTiO3‐/BaTiO3‐derived paraferroelectric states, stabilizing cubic‐orthorhombic‐tetragonal polymorphic superparaelectric phases. This minimizes polarization energy barriers, facilitating full polarization saturation without compromising efficiency.
Pan Liu, Xiang Ren, Jin Qian, Haihua Huang, Peng Li, Peng Fu, Jigong Hao, Huarong Zeng, Wei Li, Zhenxiang Cheng   +9 more
wiley   +1 more source

Assessment of slurry chamber clogging alleviation during ultra-large-diameter slurry tunnel boring machine tunneling in hard-rock using computational fluid dynamics-discrete element method: A case study

Journal of Rock Mechanics and Geotechnical Engineering
To fundamentally alleviate the excavation chamber clogging during slurry tunnel boring machine (TBM) advancing in hard rock, large-diameter short screw conveyor was adopted to slurry TBM of Qingdao Jiaozhou Bay Second Undersea Tunnel.
Yidong Guo, Xinggao Li, Dalong Jin, Hongzhi Liu, Yingran Fang   +4 more
doaj   +1 more source

Conversion analysis of a cylindrical biomass particle with a DEM-CFD coupling approach

Case Studies in Thermal Engineering, 2017
Biomass as a renewable energy source has attracted more attention nowadays due to ecological and economical benefits. The main objective of this work is studying the biomass conversion with employing a DEM-CFD coupling approach.
Mohammad Mohseni, Bernhard Peters, Mehdi Baniasadi   +2 more
doaj   +1 more source

Optimization of Airflow Field and Experimental Verification for Wheat Cleaning Device Based on CFD-DEM

Fluids
To address the issues of high impurity rates and grain loss during the wheat cleaning process, a coupled Computational Fluid Dynamics (CFD) and Discrete Element Method (DEM) approach was employed to investigate the internal airflow field and the fluid ...
Chunyan Zhang, Junrong He, Sai Yang, Yinhu Qiao, Lele Zhou, Leifeng Dai   +5 more
doaj   +1 more source

Bioinspired Passive Flow Routing to Mitigate Thrombosis in Prosthetic Heart Valves and Cardiovascular Devices

Advanced Science, EarlyView.
Bioinspired passive flow routing mitigates thrombosis in cardiovascular devices by redirecting a small fraction of forward flow into stagnation‐prone regions. Inspired by avian alula and aircraft slat mechanisms, strategically placed routing channels restore washout around mechanical heart valves, reducing low‐shear exposure by four orders of magnitude
Yevgeniy Kreinin, Mark Epshtein, Yahel Talmon, Tirosh Mekler, Itay Or, Mahli Raad, Gil Bolotin, Josué Sznitman, Netanel Korin   +8 more
wiley   +1 more source

Coupled CFD-DEM Numerical Simulation of Hydrothermal Liquefaction (HTL) of Sludge Flocs to Biocrude Oil in a Continuous Stirred Tank Reactor (CSTR) in a Scale-Up Study

Energies
A multiphase model of hydrothermal liquefaction (HTL) using the computational fluid dynamics coupling discrete element method (CFD-DEM) is used to simulate biocrude oil production from sludge flocs in a continuous stirred tank reactor (CSTR ...
Artur Wodołażski
doaj   +1 more source

Discovering Early‐Stage Gas Generation Kinetics Enables Thermal Runaway Early Warning in Lithium‐Ion Batteries

Advanced Science, EarlyView.
Operando gas diagnostics reveal a previously unrecognized chemical activation (CA) stage during thermal runaway in lithium‐ion batteries. A physics‐informed gas generation kinetics network (GGKNet) is developed to reconstruct reaction pathways and physical models automatically.
Jiabo Zhang, Qianzhen Guo, Shuaiqi Liu, Shuai Li, Xianghao Kong, Dong Han, Zhen Huang   +6 more
wiley   +1 more source

Unresolved CFD and DEM Coupled Solver for Particle-Laden Flow and Its Application to Single Particle Settlement

Journal of Marine Science and Engineering, 2020
In the present study, a single particle settlement was studied using a developed unresolved computational fluid dynamics (CFD) and discrete element method (DEM) coupling solver.
Seongjin Song, Sunho Park
doaj   +1 more source

Efficient Adsorption‐Based Direct Air Capture Via Triply Periodic Minimal Surface Architectures

Advanced Science, EarlyView.
Architected triply periodic minimal surface (TPMS) contactors reshape direct air capture by replacing straight‐channel diffusion limits with convection‐enhanced CO2 transport. Chaotic advection thins boundary layers and exposes fast adsorption sites, enabling 70%–75% more fast sites, 114% higher productivity, and 51.8% lower energy consumption than ...
Qingyang Shao, Zhuozhen Gan, Chengcheng Long, Man Zhang, Yihe Miao, Yuehui Li, Xuancan Zhu   +6 more
wiley   +1 more source

Distributed point algorithm for volume fraction calculation in CFD-DEM coupling analysis of widely graded soils

Yantu gongcheng xuebao
The coupling analysis of Computational Fluid Dynamics (CFD) and Discrete Element Method (DEM) has become an important approach to reveal the mesoscale mechanisms of soil-water coupling.
LIU Xin 1, 2, WANG Gang 1, DENG Liangjun 1, 2
doaj   +1 more source