shock-capturing 中文意思是什麼
shock-capturing
解釋
激波捕獲技術-
Thus, the eno schemes have better shock - capturing ability
這樣， eno格式就具有較好的激波捕捉能力。 -
Compared to the theoretic results, the way has higher accuracy and stronger shock - capturing capability, which showed that this method is valid
結果表明這種方法精度高，有較強的潰壩涌波捕捉能力，是一種有效方法。 -
Shock - capturing method
激波捕捉法 -
Two - order enhanced un - split finite volume euler method for multi - fluid flow, which combines the roe approximate riemann solver, is developed to simulate the multi - fluid interactions, such as the fluid described by polynomial eos, stiffen gas eos, jones - wilkins - lee ( jwl ) gaseous explosive eos, cochran - chan ( cc ) solid explosive eos and hom shock wave eos, etc. numerical results of the id, 2d and 3d multi - fluid interaction examples show that the high - resolution method and interface capturing equations can resolve the multi - fluid flow correctly and successfully. a simple fluid - mixture type ppm algorithm for multi - fluid flow, which is based on vof interface capturing method and resolved by langange / remap two steps, is developed to simulate the high density or high pressure ratio flow at both sides of the interface
本文提出了實用於多介質流體的增強型二階精度有限體積歐拉數值計算方法，採用roe方法近似求解riemann問題，可以適用於多項式狀態方程、 「 stiffengas 」狀態方程、 jones - wilkins - lee爆轟產物狀態方程、 cochran - chan固體炸藥狀態方程以及hom狀態方程等，並對多介質流體相互作用的一維、二維、三維問題進行數值計算，數值驗證了本文給出的高精度差分格式和界面捕捉方法的正確性，兩種方法耦合形成的多介質流體數值計算方法是成功的。 -
From the experiments in hyperbolic conservation laws, we can see that if we only use high resolution shock capturing method in scalar equation, there would have a transition near the interface ; but when coupled with level set method, we can get a sharp interface, the interface is tracked exactly
通過實驗可以看出，對標量雙曲守恆律方程應甩levelset方法后，我們得到了銳利的圖像，界面得到了準確追蹤，而不像高解析度激波捕捉方法，在界面附近有一個過渡區域。 -
For scalar equation and system of equations, we build different ghost fields, translate one equation ( system ) into two equations ( system ). we still use high resolution shock capturing method to compute the two equations ( system ) ; level set equation is used to track the interface, and the result of original equation ( system ) is determined by the level set function. thus, we eliminate the numerical dissipation which high resolution shock capturing method cannot avoid near the interface, and the resolution is enhanced
對標量守恆律方程、守恆律方程組分別構造了一種虛擬區域，將一個方程（組）轉化成兩個方程（組） ，對這兩個方程（組） ，我們仍然使用高解析度激波捕捉格式，而levelset方程用來追蹤間斷的位置，原方程（組）的解最後由levelset函數決定：這樣做彌補了高解析度激波捕捉方法在間斷附近發生數值耗散的缺陷，提高間斷處的解析度。 -
In this thesis, we couple high resolution shock capturing method and level set method to compute hyperbolic conservation laws
本文將高解析度激波捕捉格式與levelset方法結合起來計算雙曲守恆律方程（組） 。 -
For applications involving shocks, second order schemes such as tvd schemes are usually adequate if only relatively simple structures are present in the smooth part of the solution. however, high order shock capturing schemes ( order of at least three ) are more efficient than low order schemes when a problem contains rich structures as well as schocks
在計算含有激波但光滑區不存在復雜波系結構的流場時，二階差分格式如tvd類格式已能夠得到比較理想的數值計算結果；然而，對于即含激波，光滑區又富含各種波系結構的流場，高階高精度格式的激波捕捉格式相對低階格式具有更高的解析度，更能夠反映流場的真實流動。
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