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arXiv 1409.8673math.NAcs.NA
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利用改进的三次B样条差分求积法求解二维耦合粘性Burgers方程

Numerical Solution of two dimensional coupled viscous Burgers Equation using the Modified Cubic B Spline Differential Quadrature Method

DDU Gorakhpur University(德杜戈拉克普尔大学);ISRO Telemetry, Tracking and Command Network (ISTRAC)(印度空间研究组织遥测、跟踪和指挥网络);ISRO Satellite Center (ISAC)(印度空间研究组织卫星中心)

H. S. Shukla, Mohammad Tamsir, Vineet K. Srivastava, Jai Kumar

AI总结:

本文采用改进的三次B样条差分求积法求解二维非线性耦合粘性Burgers方程,通过数值实例验证了该方法的准确性和可靠性。

摘要:

本文讨论了利用改进的三次B样条差分求积法求解二维非线性耦合粘性Burgers方程的问题,采用适当的初始和边界条件。在该方法中,权重系数通过改进的三次B样条作为基函数计算,从而将耦合Burgers方程转化为常微分方程组。应用最优的五阶四阶强稳定性保持Runge-Kutta方案求解得到的ODE组。通过两个数值例子展示了该方案的准确性。计算结果与精确解及其他文献中的结果进行比较。数值结果表明,改进的三次B样条差分求积法是求解二维耦合Burgers方程的有效且可靠的方案。

英文摘要:

In this paper, a numerical solution of the two dimensional nonlinear coupled viscous Burgers equation is discussed with the appropriate initial and boundary conditions using the modified cubic B spline differential quadrature method. In this method, the weighting coefficients are computed using the modified cubic B spline as a basis function in the differential quadrature method. Thus, the coupled Burgers equations are reduced into a system of ordinary differential equations (ODEs). An optimal five stage and fourth order strong stability preserving Runge Kutta scheme is applied to solve the resulting system of ODEs. The accuracy of the scheme is illustrated via two numerical examples. Computed results are compared with the exact solutions and other results available in the literature. Numerical results show that the MCB DQM is efficient and reliable scheme for solving the two dimensional coupled Burgers equation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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