front track meaning in English
前导板
Examples
- A conservative front tracking method with high order accurate
一种高精度守恒型间断跟踪法 - Program realization of a front tracking method based on conservation for one dimensional salar conservation law
一种守恒型间断跟踪法在一维单守恒律方程上的程序实现 - Realization of a front tracking method based on conservation for one dimensional scalar conservation law with nonconvex flux
一种守恒型间断跟踪法在一维单守恒律方程非凸流上的实现 - Front tracking method has gained sufficient development . because this method based upon the physical resolutions of the mathematical equations , it can capture the developments of the interfaces accurately and avoid the non - physical phenomenon
该方法以数学方程物理解的性质为基础，其最大的特点就是能够精确捕捉到界面的发展而不会出现非物理的现象。 - In this paper , high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed . 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 ( caa ) 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
本文研究了高阶精度加权基本无振荡( weno )格式及其在双曲守恒律方程中的应用，在此基础上作了两个方面的工作：一是针对高频声波问题构造出一种基于保色散关系( drp )的weno有限差分格式，并对计算气动声学( caa )问题的代表性算例进行了大量数值实验，比较了该格式捕捉波数的能力；另外，针对高阶weno格式在处理euler方程的接触间断时精度有所降低的问题，研究了利用界面追踪技术levelset方法和高阶激波捕捉weno格式相结合的一种守恒追踪方法，并且给出有代表性的密度滑移面问题的算例，得到一致高阶精度的数值模拟结果。