2012 Fiscal Year Final Research Report
Study on noise reduction scheme in the Monte Carlo simulation forBoltzmann equation
| Project/Area Number |
22560159
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Fluid engineering
|
|---|
| Research Institution | Yokohama National University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 分子流体力学 / 希薄気体流れ / ボルツマン方程式 / モンテカルロ解析 / ノイズ低減 |
|---|
| Research Abstract |
A noise reduction scheme based on the Markov statistical process was introduced to the direct simulation Monte Carlo method, and then applied to the two dimensional Couette flow and cavity flow in the low speed and low Knudsen number rarefied gas fields. It was confirmed that the noise reduction scheme was reduced the statistical errors faster than those of DSMC simulation. However small discrepancies were observed in the profiles of the flow structures such as velocity and temperature distributions between the noise reduction scheme and DSMC method.
|
