27 citations · 41 across the 3 of their papers we have counts for
15 papers · 1 filter
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…
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…