Based on this, a new WENO difference scheme which based on Dispersion-Relation-Preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics problems has been implemented and compared in order to test capability of wave capturing; In addition, WENO schemes generally do not converge at high order in the presence of contact discontinuity of Euler equations, so a conservative front tracking technique coupling WENO schemes and Level Set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy.

本文研究了高階精度加權(quán)基本無振蕩格式及其在雙曲守恒律方程中的應(yīng)用暴操学污在线免费观看视频，在此基礎(chǔ)上作了兩個(gè)方面的工作：一是針對(duì)高頻聲波問題構(gòu)造出一種基于保色散關(guān)系的WENO有限差分格式久久久久久久久久久久久久久久久，并對(duì)計(jì)算氣動(dòng)聲學(xué)問題的代表性算例進(jìn)行了大量數(shù)值實(shí)驗(yàn)，比較了該格式捕捉波數(shù)的能力色色色8；另外欧美三级电影网址，針對(duì)高階WENO格式在處理Euler方程的接觸間斷時(shí)精度有所降低的問題，研究了利用界面追蹤技術(shù)Level Set方法和高階激波捕捉WENO格式相結(jié)合的一種守恒追蹤方法亚洲操大逼综合网，并且給出有代表性的密度滑移面問題的算例欧美视频性交，得到一致高階精度的數(shù)值模擬結(jié)果。

The numerical results of the dispersion relation show some nonlinear effects: for a fixed geometry of a waveguid, beam parameters and plasma density, the increment of the modulation parameter may lead to a slight increment of the operating frequency, However, as the modulation parameter increases further, saturation may occur and the dispersion relations are hard to be separated, it is due to the overmodulation of the microwave power, this phenomenon itself belongs to the nonlinear effects.

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The linear dispersion relation of the enhanced equations is the Pad\'{e} [4,4] expansion of the linear Stokes dispersion relation, the accuracy of which is acceptable even when the relative water depth is as large as 1.0. Its nonlinear property and shoaling gradient are also improved.

改進(jìn)后方程的線性色散關(guān)系達(dá)到了一階Stokes波色散關(guān)系的Pad\'{e}[4，4]近似乱人伦视频一级，在相對(duì)水深達(dá)1.0的強(qiáng)色散波浪時(shí)仍保持較高的準(zhǔn)確性老司机日韩精品伦理片，并且方程的非線性和線性變淺率都得到了不同程度的改善。

dispersion, angular：角波散

波散關(guān)系式 dispersion relation | 角波散 dispersion, angular | 色散 dispersion, chromatic

dispersion medium：瀰散介質(zhì)

dispersion equation 色散方程 ;頻散方程 | dispersion medium 瀰散介質(zhì) | dispersion relation 頻散關(guān)係

reciprocal relation：倒數(shù)關(guān)系,倒易關(guān)系,互反關(guān)系,互易關(guān)系

reciprocal reference 相關(guān)參照 | reciprocal relation 倒數(shù)關(guān)系,倒易關(guān)系,互反關(guān)系,互易關(guān)系 | reciprocal relative dispersion 相對(duì)色散的倒數(shù)