Multilevel Higher Order Method for Simulation of Linear Wave Propagation

摘要：

　　An algebraic multilevel method is proposed for eciently simulating linear wave propa- gation using higher-order numerical schemes.This method is used in conjunction with the explicit nite volume method for solving linear wave propagation dominated problems in the time do- main.In the multilevel method the solution is cycled through spatial operators of varying orders of accuracy,while maintaining highest-order accuracy at coarser approximation levels through the use of the relative truncation error as a forcing function.Higher-order spatial accuracy can be enforced using the multilevel method at a fraction of the computational cost incurred in a conven- tional higher-order implementation.The multilevel method is targeted towards electromagnetic and acoustic scattering problems at high frequencies which usually require long simulation times due to the use of very ne meshes dictated by point-per-wavelength requirements.

关键词： Higher-order Finite Volume Aeroacoustics Electromagnetics Multilevel Linear Wave

作者: A. Chatterjee S. M. Joshi

作者单位: Department of Aerospace Engineering,Indian Institute of Technology, Bombay,Mumbai 400076, India

会议类型: 国际会议

会议名称: The 8th International Conference of Computational Fluid Dynamics, (ICCFD8)(第八届国际计算流体力学会议)

会议地点: 成都

会议语种:英文

页码: 1-12

在线出版日期: 2014-07-25（万方平台首次上网日期，不代表论文的发表时间）