Simulation of the Molecular Gas Dynamics With Adiabatic Wall Boundary Condition in Micro-Channel Flow
碩士 === 國防大學中正理工學院 === 兵器系統工程研究所 === 96 === In this study, the Direct Simulation Monte Carlo (DSMC) method is adopted to implement the simulation of the micro-channel flow with adiabatic walls. The major concern is to set up the proper boundary conditions for adiabatic channel walls. A novel gas-wall...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2008
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/05197285632617730307 |
| Summary: | 碩士 === 國防大學中正理工學院 === 兵器系統工程研究所 === 96 === In this study, the Direct Simulation Monte Carlo (DSMC) method is adopted to implement the simulation of the micro-channel flow with adiabatic walls. The major concern is to set up the proper boundary conditions for adiabatic channel walls. A novel gas-wall molecule collision rule for describing the adiabatic wall in DSMC simulation is proposed. This novel gas-wall collision rule keeps the molecule total velocity invariant and its normal velocity component reversed with the same magnitude before and after collision, while the other two components can vary randomly.
Pressure-driven flows in the micro channel are simulated by varying inlet/exit pressure for a range of slip to transition regime flows. The simulation results of the adiabatic boundary condition are expected to provide better understanding of their effects on flow characteristics in the micro channel.
|
|---|