Direct simulation Monte Carlo modeling of relaxation processes in polyatomic gases

2016 ◽  
Vol 28 (2) ◽  
pp. 027103 ◽  
Author(s):  
M. Pfeiffer ◽  
P. Nizenkov ◽  
A. Mirza ◽  
S. Fasoulas
Keyword(s):  
Monte Carlo ◽  
Direct Simulation Monte Carlo ◽  
Relaxation Processes ◽  
Direct Simulation ◽  
Monte Carlo Modeling ◽  
Polyatomic Gases ◽  
Simulation Monte Carlo

Gas Properties Effects in Microchannel Studies Using Direct Simulation Monte Carlo

2010 ◽  
Author(s):  
Masoud Darbandi ◽  
Abolfazl Karchani ◽  
Hassan Akhlaghi ◽  
Gerry Schneider
Keyword(s):  
Heat Transfer ◽  
Monte Carlo ◽  
Slip Flow ◽  
Direct Simulation Monte Carlo ◽  
Direct Simulation ◽  
Polyatomic Gases ◽  
Flow And Heat Transfer ◽  
Flow Through ◽  
Simulation Monte Carlo ◽  
Gas Properties

This paper concern is to study the gas properties effect in flow and heat transfer behaviors through microchannels using the direct simulation Monte Carlo method. The flow is rarefied and supersonic. The channels are investigated at two different inlet boundary conditions. The collision process is modeled using the NTC (no-time-counter) scheme. The VHS model is chosen to simulate collision between particle pairs. The study is provided for many different gases including nitrogen, helium, and oxygen. The Knudsen number is chosen in a manner to provide slip flow through the channel. The results show that the heat transfer from the wall is lower for heavier gases. A comparative study among the monatomic, diatomic, polyatomic gases shows that the heat transfer rate is lower for the polyatomic gases. The result shows that, the heat transfer from the wall is lower for the heavier gases than that for the lighter gas. For a fixed Mach number, the heat transfer from the wall decreases as the molecular diameter increases.

Direct Simulation Monte Carlo Modeling of Homogenous Condensation in Supersonic Plumes

AIAA Journal ◽  
2005 ◽  
Vol 43 (8) ◽  
pp. 1784-1796 ◽  
Author(s):  
Jiaqiang Zhong ◽  
Michael I. Zeifman ◽  
Deborah A. Levin ◽  
Sergey F. Gimelshein
Keyword(s):  
Monte Carlo ◽  
Direct Simulation Monte Carlo ◽  
Direct Simulation ◽  
Monte Carlo Modeling ◽  
Simulation Monte Carlo
Sign in / Sign up

Export Citation Format

Share Document