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Optimization of MUSCL scheme by dispersion and dissipation
Leng Y(冷岩); Li XL(李新亮); Fu DX(傅德薰); Ma YW(马延文)
Source Publication高温气体动力学研究进展
Conference NameLHD2011夏季学术研讨会
Conference Date2011
Conference Place内蒙赤峰
AbstractA second-order monotonicity-preserving optimized MUSCL scheme (OMUSCL2) isdeveloped based on dispersion and dissipation optimization and monotonicity-preservingtechnique. The new scheme (OMUSCL2) has simple expression and is easy to be used in CFDcodes. Compared with the original second-order or third-order MUSCL scheme, the new schemeshows nearly the same CPU costs and higher resolution to shockwaves and small-scale waves.We test the new scheme through a set of one-dimensional and two-dimensional tests, includingthe Shu-Osher problem, the sod problem, the Lax problem, two dimension double Machreflection and RAE2822 transonic airfoil test. All numerical tests show that, compared withoriginal MUSCL schemes, the new scheme has less dispersion error, less dissipation error andhigher resolution.
KeywordMusclscheme Monotonicity-preserving Resolution Dissipation/dispersion Error Optimization
Document Type会议论文
Recommended Citation
GB/T 7714
Leng Y,Li XL,Fu DX,et al. Optimization of MUSCL scheme by dispersion and dissipation[C]高温气体动力学研究进展,2011:145-156.
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