本文選題：激波 + 非結(jié)構(gòu)動(dòng)網(wǎng)格　； 參考：《航空學(xué)報(bào)》2016年03期

【摘要】：基于非結(jié)構(gòu)動(dòng)網(wǎng)格技術(shù)和邊界裝配思想提出了動(dòng)態(tài)間斷裝配法,該方法能夠應(yīng)用于求解含有間斷的流動(dòng)問題。無論入射激波還是反射激波都是作為邊界進(jìn)行處理,激波運(yùn)動(dòng)速度由蘭金-許貢紐(Rankine-Hugoniot)關(guān)系確定。激波作為動(dòng)網(wǎng)格的一部分,其運(yùn)動(dòng)由動(dòng)網(wǎng)格技術(shù)實(shí)現(xiàn)。采用該方法模擬了超聲速二維流場(chǎng)中激波與壁面相交問題,并且與捕捉法進(jìn)行比較,二者的流場(chǎng)結(jié)構(gòu)符合良好,但是在細(xì)節(jié)上還是存在明顯差異。通過對(duì)流動(dòng)結(jié)構(gòu)的分析,得出采用裝配方法得到的流場(chǎng)要優(yōu)于捕捉方法的結(jié)論。激波壁面反射的問題模擬,也說明了邊界激波裝配方法對(duì)于復(fù)雜的激波相交問題是具有處理能力的。
[Abstract]:A dynamic discontinuous assembly method is proposed based on the unstructured dynamic mesh technique and the idea of boundary assembly. This method can be applied to solve the flow problem with discontinuity. The shock velocity is determined by the Rankine-Hugoniotot relation of Rankine-Hugoniotot, whether the incident shock wave or the reflected shock wave is treated as the boundary. As a part of moving grid, shock wave motion is realized by moving grid technology. The method is used to simulate the intersection of shock wave and wall surface in supersonic two-dimensional flow field. Compared with the capture method, the flow field structure of the two methods is in good agreement, but there are obvious differences in detail. Through the analysis of the flow structure, it is concluded that the flow field obtained by the assembly method is superior to the capture method. The simulation of shock wave wall reflection also shows that the boundary shock assembly method has the ability to deal with the complex shock wave intersection problem.
【作者單位】： 大連理工大學(xué)航空航天學(xué)院;
【分類號(hào)】：O354.5

【共引文獻(xiàn)】

相關(guān)期刊論文 前1條

1 劉君;鄒東陽;徐春光;;基于非結(jié)構(gòu)動(dòng)網(wǎng)格的非定常激波裝配法[J];空氣動(dòng)力學(xué)學(xué)報(bào);2015年01期

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本文編號(hào)：1875341