A5100386615- Granular flow and fluidized beds
- Nuclear Materials and Properties
- Fluid Dynamics Simulations and Interactions
- Particle Dynamics in Fluid Flows
- Nuclear reactor physics and engineering
- Nuclear Engineering Thermal-Hydraulics
- Model Reduction and Neural Networks
- Fluid Dynamics and Heat Transfer
- Cyclone Separators and Fluid Dynamics
- Fluid Dynamics and Vibration Analysis
- Fluid Dynamics and Turbulent Flows
- Hydrology and Watershed Management Studies
- Risk and Safety Analysis
- Rock Mechanics and Modeling
- Radioactive element chemistry and processing
- Ship Hydrodynamics and Maneuverability
- Landslides and related hazards
- Mineral Processing and Grinding
- Groundwater flow and contamination studies
- Nuclear and radioactivity studies
- High-Temperature Coating Behaviors
- Probabilistic and Robust Engineering Design
- Biomimetic flight and propulsion mechanisms
- Water resources management and optimization
- Water-Energy-Food Nexus Studies
The University of Tokyo
2022-2024
University of Alberta
2022
Sun Yat-sen University
2017-2021
Center for Agricultural Resources Research
2015
Institute of Genetics and Developmental Biology
2015
China University of Petroleum, Beijing
2013
Multiphase flows with solid particles are commonly encountered in various industries. The CFD–DEM method is extensively used to simulate their dynamical behavior. However, the application of industrial-scale powder processes unavoidably leads huge computational costs. With aim overcoming this issue, we propose a nonintrusive reduced-order model for Eulerian–Lagrangian simulations (ROM-EL) efficiently reproduce gas–solid flow fluidized beds. In model, Lanczos based proper orthogonal...
Reduced-order models (ROMs) have been extensively employed to understand complex systems efficiently and adequately. In this study, a novel parametric ROM framework is developed produce Eulerian–Lagrangian simulations. This study employs two typical strategies reproduce the physical phenomena of gas–solid flow by predicting adequate dynamics modal coefficients in ROM: (i) based on radial-basis function (RBF) interpolation, termed ROM-RBF (ii) long–short term memory (LSTM) neural network,...
The transport of monodisperse and bimodal particles in a turbulent non-Newtonian carrier is studied using Eulerian–Eulerian CFD model coupled with granular kinetic theory. predictions agreed satisfactorily experimental data solids concentration pressure drop. We investigated the effects diameter monodispersed (0.5–2 mm), (0.1–0.4), mixture velocity (3–6 m/s), fluid density (1000–1400 kg/m3) on flow behavior specific energy consumption. had most significant effect drop radial distribution. An...
Computational fluid dynamics coupled with the discrete element method (CFD-DEM) is widely employed for simulating multiphase flows involving particles, but heavy computational cost a major concern. Reduced order models (ROMs) based on proper orthogonal decomposition (POD) offer new potential to greatly reduce cost. This study aims investigate feasibility of POD-based ROMs Eulerian–Lagrangian simulations, considering few studies in this field. For analysis, whether dominant POD modes are...
We modeled the solution behavior of zirconium in uranium dioxide (UO2) by using density functional theory. The Coulomb repulsion 5f elections was characterized a spherically averaged Hubbard parameter. Our results indicate that prefers to locate at U vacancies UO2 and presents slight tendency accumulate thermodynamics. energies for hcp Zr metal monoclinic ZrO2 indicates these two precipitates are insoluble UO2. In perfect UO2, band-gap opening is governed peaks around Fermi energy, whereas...
It is important to clarify the mechanisms of molten-fuel-pool sloshing behavior that might be encountered during a core disruptive accident sodium-cooled fast reactors. In this study, motivated by acquiring some evidence for understanding characteristics at more realistic conditions, number experiments are newly performed injecting nitrogen gas into water pool with accumulation solid particles. To achieve comprehensive understanding, various parameters including particle bed height, size,...
Investigations on the molten-pool sloshing behavior are of essential value for improving nuclear safety evaluation Core Disruptive Accidents (CDA) that would be possibly encountered Sodium-cooled Fast Reactors (SFR). This paper is aimed at synthesizing knowledge from our recent studies with solid particles conducted Sun Yat-sen University. To better visualize and clarify mechanism characteristics induced by local Fuel-Coolant Interaction (FCI), experiments were performed various parameters...
Accurate forecasting of AUV spatial motions is essential for its safe operations. AUV’s 6-DOF coupling motion can cause mesh distortion in numerical simulation, which limits moving and dynamic overset method to be applied 3 DOFs with one rotational DOF. In this paper, a motion-decomposition proposed decompose into translational motion. The limited spherical zone the body-fixed coordinate system including boundary. At same time, boundary treated as mass point transferred square earth-fixed...
Studies on the pool sloshing behavior are of crucial importance for improved assessment energetic potential a large whole-core-scale molten fuel that might be formed in transition phase Core Disruptive Accident (CDA) Sodium-cooled Fast Reactors (SFR). In this work, to clarify mechanisms underlying behavior, series simulated experiments was performed by injecting nitrogen gas into two-dimensional rectangular water from nozzle positioned at center bottom. To achieve comprehensive...