臺灣博碩士論文加值系統

本文以直接模擬蒙地卡羅法計算超極音速稀薄氣體中自由剪力層之流場結
構及動量脈動相關函數.我們先觀察其流場特性,接著討論自由流分別為不
同密度,相同速度比但不同速度,不同速度比下自由剪力層結構之差異,最
後並與連性紊流自由剪力層之結果相較.

We calculated for the flow field of free shear layers in a
rarefied gas by theDirect Simulation Monte Carlo (DSMC) method.
We observed the averaged momentumfluction correlation in a
rarefied mixing layer.First, we viewed the characteristics of
the flow. Then we discused the difference among the flow fields
with the different densities, the different velocities (but the
same velocity ratio), the different velocity ratios.Finally, we
compared with this kind of flow fields in a continuum
turbulence.