shock dissipation 中文意思是什麼

shock dissipation 解釋
激波耗散
  • shock : n 1 沖突；沖撞；沖擊；突擊。2 震動；沖動；激動。3 感動；憤慨；驚愕；震驚。4 地震。5 【醫學】休克...
  • dissipation : n. 1. 消散，分散；【化學】散逸。2. 浪費；消耗，損耗。3. 放蕩，閑游浪蕩。4. 消遣，娛樂。
  1. The investigation in this dissertation shows the capabilities of ausm + scheme, such as the exact resolution of shock, low numerical dissipation, simple and requiring less computational effort. the successful applications on supercritical airfoils and wings show that the present flow solvers based on ausm + scheme are of valuable and promising in practical application

    通過本文的研究工作，展示了ausm +格式的激波高解析度、數值耗散小、編程簡潔、計算量較小等特性，同時，將其成功地應用於跨音速超臨界翼型、機翼的定常或非定常氣動特性的數值模擬和顫振研究中，具有一定的工程應用價值和良好的發展前景。
  2. The main numerical method of this code is coming from scheme ( jameson, schimit and turkel ) : using cell - centered finite volume method as spatial discretization tools, and a system of ordinary differential equations for time variable is obtained, which is solved by utilizing five - step runge - kutta scheme as time marching method, introducing artificial dissipation to damp high frequency oscillations near the shock and stagnation point

    本論文採用歐拉方程作為控制方程，利用中心有限體積法進行空間離散，得到對時間變量的常微分方程組，採用龍格庫塔多步法進行時間積分，加入人工粘性以消除激波和駐點附近的壓力振蕩等方法來對naca0012翼型的實際流動進行并行數值模擬。
  3. 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。
  4. Then the explicit finite - volume method for the two - dimensional steady navier - stocks equations is studied. in order to prevent odd - even decoupling of the solution and oscillations near the shock waves, artificial dissipation is added. local time step, residue averaging, enthalpy damping and multi - grid method are used to accelerate the convergence during the five - step runge - kutta explicit time marching

    在計算中，採用五步runge - kutta顯式時間推進，引進人工耗散項以克服中心差分固有的奇偶不關聯性和抑制激波附近解的振蕩，應用了當地時間步長、殘值光順、焓阻尼、多重網格法等措施加速計算收斂。
分享友人
分享到 Line

分享到臉書