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comparative study of numerical schemes of tvd3, uno3-acm and optimized compact schemeThree different schemes are employed to solve the benchmark problem. The first one is a conventional TVD-MUSCL (Monotone Upwind Schemes for Conservation Laws) scheme. The second scheme is a UNO3-ACM (Uniformly Non-Oscillatory Artificial Compression Method) scheme. The third scheme is an optimized compact finite difference scheme modified by us: the 4th order Runge Kutta time stepping, the 4th order pentadiagonal compact spatial discretization with the maximum resolution characteristics. The problems of category 1 are solved by using the second (UNO3-ACM) and third (Optimized Compact) schemes. The problems of category 2 are solved by using the first (TVD3) and second (UNO3-ACM) schemes. The problem of category 5 is solved by using the first (TVD3) scheme. It can be concluded from the present calculations that the Optimized Compact scheme and the UN03-ACM show good resolutions for category 1 and category 2 respectively.
Document ID
19950023716
Document Type
Conference Paper
Authors
Lee, Duck-Joo
(Korea Advanced Inst. of Science and Technology Taejon, Republic Of Korea)
Hwang, Chang-Jeon
(Korea Advanced Inst. of Science and Technology Taejon, Republic Of Korea)
Ko, Duck-Kon
(Korea Advanced Inst. of Science and Technology Taejon, Republic Of Korea)
Kim, Jae-Wook
(Korea Advanced Inst. of Science and Technology Taejon, Republic Of Korea)
Date Acquired
September 6, 2013
Publication Date
May 1, 1995
Publication Information
Publication: NASA. Langley Research Center, ICASE(LaRC Workshop on Benchmark Problems in Computational Aeroacoustics (CAA) p 47-57 (SEE N95-30133 10-71)
Subject Category
ACOUSTICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.