【摘要】：跨音壓氣機(jī)中存在激波/邊界層相互干涉、激波/葉尖泄漏渦相互干涉等復(fù)雜流動(dòng)結(jié)構(gòu),為了實(shí)現(xiàn)高精度的數(shù)值模擬,精細(xì)的捕捉到激波以及葉尖泄漏渦附近的流動(dòng)結(jié)構(gòu),從而探究其復(fù)雜的流動(dòng)機(jī)理,本文發(fā)展了非結(jié)構(gòu)網(wǎng)格自適應(yīng)技術(shù),其可以自動(dòng)的加密關(guān)注流動(dòng)特征附近的網(wǎng)格,從而實(shí)現(xiàn)對(duì)激波、葉尖泄漏渦及激波與其他流動(dòng)現(xiàn)象相互作用的流動(dòng)結(jié)構(gòu)的精細(xì)捕捉。本文將網(wǎng)格自適應(yīng)技術(shù)應(yīng)用于RAE-2822翼型二維激波算例以及真實(shí)跨音速壓氣機(jī)Rotor-37算例的數(shù)值模擬中,計(jì)算結(jié)果表明網(wǎng)格自適應(yīng)技術(shù)能自動(dòng)的捕捉到激波、葉尖泄漏渦及其與其他流動(dòng)現(xiàn)象相互干涉的精細(xì)流動(dòng)結(jié)構(gòu)。
[Abstract]:There are complex flow structures such as shock wave / boundary layer interaction, shock wave / tip leakage vortex interference and so on in transonic compressor. In order to achieve high accuracy numerical simulation, the shock wave and the flow structure near the tip leakage vortex can be accurately captured. In order to explore its complex flow mechanism, this paper develops the unstructured mesh adaptive technology, which can automatically encrypt and pay attention to the grid near the flow characteristics, so as to realize the shock wave. Fine capture of tip leakage vortices and shock waves interacting with other flow phenomena. In this paper, the grid adaptive technique is applied to the numerical simulation of 2D shock wave of RAE-2822 airfoil and Rotor-37 example of real transonic compressor. The results show that the grid adaptive technique can capture shock wave automatically. Tip leakage vortex and its fine flow structure which interferes with other flow phenomena.
【作者單位】： 清華大學(xué)熱科學(xué)與動(dòng)力工程教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(No.51136003);國(guó)家自然科學(xué)基金青年項(xiàng)目(No.51506107)
【分類號(hào)】：TH45

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本文編號(hào)：2335441