93 citations · 587 across the 31 of their papers we have counts for
31 papers
Hybrid LBM-FVM and LBM-MCM Methods for Fluid Flow and Heat Transfer Simulation
Zheng Li, Mo Yang, Yuwen Zhang
The fluid flow and heat transfer problems encountered in industry applications span into different scales and there are different numerical methods for different scales problems. I…
Surrogate-based optimization of thermal damage to living biological tissues by laser irradiation
Nazia Afrin, Yuwen Zhang
The surrogate-based analysis and optimization of thermal damage in living biological tissue by laser irradiation are discussed in this paper. Latin Hypercube Sampling (LHS) and Res…
Multiscale Simulation of Surface Nanostructure Effect on Bubble Nucleation
Yijin Mao, Bo Zhang, Chung-Lung Chen +1
Effects of nanostructured defects of copper solid surface on the bubble growth in liquid argon have been investigated through a hybrid atomistic-continuum method. The same solid su…
Melting and thermal ablation of a silver film induced by femtosecond laser heating: A multiscale modeling approach
Pengfei Ji, Yuwen Zhang
The femtosecond laser pulse heating of silver film is investigated by performing quantum mechanics (QM), molecular dynamics (MD) and two temperature model (TTM) integrated multisca…
A Multiscale Study of Film Thickness Dependent Femtosecond Laser Spallation and Ablation
Pengfei Ji, Yuwen Zhang
A multiscale studying integrating ab initio quantum mechanics, classical molecular dynamics and two-temperature model, is carried out to study film thickness dependent femtosecond…
Multiscale modeling of femtosecond laser irradiation on copper film with electron thermal conductivity from ab initio calculation
Pengfei Ji, Yuwen Zhang
By combining ab initio quantum mechanics calculation and Drude model, electron temperature and lattice temperature dependent electron thermal conductivity is calculated and impleme…
Nonlinear Analysis of Chaotic Flow in a Three-Dimensional Closed-Loop Pulsating Heat Pipe
S. M. Pouryoussefi, Yuwen Zhang
Numerical simulation has been conducted for the chaotic flow in a 3D closed-loop pulsating heat pipe (PHP). Heat flux and constant temperature boundary conditions were applied for…
Improved Finite Difference Method with a Compact Correction Term for Solving Poisson's Equations
Kun Zhang, Liangbi Wang, Yuwen Zhang
An improved finite difference method with compact correction term is proposed to solve the Poisson equations. The compact correction term is developed by a coupled high-order compa…
Evaluation of Copper, Aluminum and Nickel Interatomic Potentials on Predicting the Elastic Properties
Seyed Moein Rassoulinejad-Mousavi, Yijin Mao, Yuwen Zhang
Choice of appropriate force field is one of the main concerns of any atomistic simulation that needs to be seriously considered in order to yield reliable results. Since, investiga…
Multicomponent Gas-Particle Flow and Heat/Mass Transfer Induced by a Localized Laser Irradiation on a Urethane-Coated Stainless Steel Substrate
Nazia Afrin, Yijin Mao, Yuwen Zhang +4
A three-dimensional numerical simulation is conducted for a complex process in a laser-material system, which involves heat and mass transfer in a compressible gaseous phase and ch…
Analysis of chaotic flow in a 2D multi-turn closed-loop pulsating heat pipe
S. M. Pouryoussefi, Yuwen Zhang
Numerical study has been conducted for the chaotic flow in a multi-turn closed-loop pulsating heat pipe (PHP). Heat flux and constant temperature boundary conditions have been appl…
Effects of Beam Size and Pulse Duration on the Laser Drilling Process
Nazia Afrin, Pengfei Ji, J. K. Chen +1
A two-dimensional axisymmetric transient laser drilling model is used to analyze the effects of laser beam diameter and laser pulse duration on the laser drilling process. The mode…
Melt Flow and Heat Transfer in Laser Drilling
Youqing Yang, Zhen Chen, Yuwen Zhang
During the laser drilling process the recoil pressure drives melt flow and affects the heat transfer and material removal rate. To get a more realistic picture of the melt flow, a…
Effects of Slotted Structures on Nonlinear Characteristics of Natural Convection in a Cylinder with an Internal Concentric Slotted Annulus
Chunyun Shen, Mo Yang, Yuwen Zhang +1
Natural convection in a cylinder with an internally slotted annulus was solved by SIMPLE algorithm, and the effects of different slotted structures on nonlinear characteristics of…
Molecular Dynamics Simulation of Condensation on Nanostructured Surface in a Confined Space
Li Li, Pengfei Ji, Yuwen Zhang
Understanding heat transfer characteristics of phase change and enhancing thermal energy transport in nanoscale are of great interest in both theoretical and practical applications…
Oscillatory Double-Diffusive Convection in a Horizontal Cavity with Soret and Dufour Effects
Jin Wang, Mo Yang, Yuwen Zhang
Oscillatory double-diffusive convection in horizontal cavity with Soret and Dufour effects is investigated numerically based on SIMPLE algorithm with QUICK scheme in non-uniform st…
Analysis of Cohesive Microsized Particle Packing Structure Using History-Dependent Contact Models
Raihan Tayeb, Xin Dou, Yijin Mao +1
Granular packing structures of cohesive micro-sized particles with different sizes and size distributions, including mono-sized, uniform and Gaussian distribution, are investigated…
Ab initio determination of effective electron-phonon coupling factor in copper
Pengfei Ji, Yuwen Zhang
The electron temperature dependent electron density of states, Fermi-Dirac distribution, and electron-phonon spectral function are computed as prerequisites before achieving effect…
A multiscale nonequilibrium model for melting of metal powder bed subjected to constant heat flux
Jin Wang, Mo Yang, Yuwen Zhang
A multiscale numerical model based on nonequilibrium thermal effect for melting of metal powder bed subjected to constant heat flux is developed. The volume shrinkage due to densit…
Advances and Outlooks of Heat Transfer Enhancement by Longitudinal Vortex Generators
Ya-Ling He, Yuwen Zhang
In the last several decades, heat transfer enhancements using extended surface (fins) has received considerable attentions. A new heat transfer enhancement technique, longitudinal…
Continuum-atomistic simulation of picosecond laser heating of copper with electron heat capacity from ab initio calculation
Pengfei Ji, Yuwen Zhang
On the basis of ab initio quantum mechanics (QM) calculation, the obtained electron heat capacity is implemented into energy equation of electron subsystem in two temperature model…
Flow and Heat Transfer in Micro Pin Fin Heat Sinks with Nano-Encapsulated Phase Change Materials
Bahram Rajabifar, Hamid Reza Seyf, Yuwen Zhang +1
In this paper, a 3D conjugated heat transfer model for Nano-Encapsulated Phase Change Materials (NEPCMs) cooled Micro Pin Fin Heat Sink (MPFHS) is presented. The governing equation…
Heat and Mass Transfer during Chemical Vapor Deposition on the Particle Surface Subjected to Nanosecond Laser Heating
Quan Peng, Yuwen Zhang, Yaling He +1
A thermal model of chemical vapor deposition of titanium nitride (TiN) on the spherical particle surface under irradiation by a nanosecond laser pulse is presented in this paper. H…
Advances in Thermal Modeling of Selective Laser Sintering of Metal Powders
Bin Xiao, Yuwen Zhang
Selective laser sintering (SLS) of single component metal powders is a rapid prototyping technology in which a high-energy laser beam scans, melts, shrinks and consolidates metal p…