高精度WCNS格式加权策略改进与数值验证
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杨强, 李伟鹏
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Improvement and Numerical Verification of Weighting Strategy for High Precision WCNS Scheme
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YANG Qiang, LI Weipeng
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表1 二维欧拉方程的WCNS7-Z 和 WCNS7-T 格式的误差和精度
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Tab.1 Errors and accuracy with two dimensional Euler equations for WCNS7-Z and WCNS7-T schemes
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| Nx | WCNS7-Z | | WCNS7-T | | E1 | P1 | E2 | P2 | E1 | P1 | E2 | P2 | | 102 | 4.34×10-3 | 0.00 | 3.12×10-3 | 0.00 | | 2.17×10-3 | 0.00 | 1.47×10-3 | 0.00 | | 202 | 5.74×10-5 | 6.24 | 3.91×10-5 | 6.32 | | 1.86×10-5 | 6.87 | 1.02×10-5 | 7.17 | | 402 | 5.41×10-7 | 6.73 | 3.46×10-7 | 6.82 | | 1.33×10-7 | 7.13 | 8.08×10-8 | 6.98 | | 802 | 4.17×10-9 | 7.02 | 2.51×10-9 | 7.11 | | 8.15×10-10 | 7.35 | 5.46×10-10 | 7.21 | | 1602 | 3.34×10-11 | 6.96 | 1.86×10-11 | 7.08 | | 5.98×10-12 | 7.09 | 3.90×10-12 | 7.13 | | 3202 | 2.19×10-13 | 7.25 | 1.43×10-13 | 7.02 | | 4.04×10-14 | 7.21 | 3.01×10-14 | 7.02 |
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