2012
DOI: 10.1016/j.jcp.2012.04.015
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E-CUSP scheme for the equations of ideal magnetohydrodynamics with high order WENO Scheme

Abstract: a b s t r a c tAn E-CUSP (energy-convective upwind and split pressure) scheme is developed to solve the equations of magnetohydrodynamics. Fifth order WENO reconstructions are employed to calculate the fluxes in order to achieve high order spacial accuracy. A characteristic speed of sound by averaging the fast wave speed and the acoustic speed of sound is suggested to evaluate the Mach number, which will yield robust and accurate solutions. The numerical experiments have demonstrated the accuracy and the capab… Show more

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Cited by 38 publications
(20 citation statements)
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“…The divergence-free requirement for the magnetic field ( •B = 0) is automatically satisfied, as long as B x = const. [52]. Then, Equation (1a) is solved with a 1D finite-volume code, and can be written in the delta form as:…”
Section: Governing Equationsmentioning
confidence: 99%
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“…The divergence-free requirement for the magnetic field ( •B = 0) is automatically satisfied, as long as B x = const. [52]. Then, Equation (1a) is solved with a 1D finite-volume code, and can be written in the delta form as:…”
Section: Governing Equationsmentioning
confidence: 99%
“…Only a few FVS-based Riemann solvers for MHD have been presented in the literature. These include E-CUSP [52] and AUSMPW+ [53,54]. While E-CUSP will not accurately capture a stationary contact discontinuity in MHD, AUSMPW+ will capture such a discontinuity.…”
Section: Introductionmentioning
confidence: 99%
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“…which has the same form as (52). Note that whereas the consistency condition (53) on ρu is used to obtain B * α in the HLLC solver, here the RH condition across S α is applied to ρu and B for determining ρu * α and B * α , and a consistency condition similar to (53) Note that this is consistent with the fact that densities are identical across rotational discontinuities, which is assumed in deriving the estimates of S * L and S * R in (59).…”
Section: D Blast Wavementioning
confidence: 99%
“…Shen 等 [111] 注意到在 MHD 的特征系统中, 对应于 Alfvén 波的特征值对通 量没有影响, 也就是说用任何值代替对应的特征值, 通量不变, 这使得基于 Roe 近似的黎曼解具有不确定 性. 另一种低耗散高阶格式 [111,112] 将对流迎风压力分 裂的 WENO 格式和约束输运算法结合起来, 不需要 繁复的求解特征系统, 这些低耗散的格式预计可以 用于未来低粘性的太阳风数值研究中.…”
Section: Sip-cese 对扰动事件的模拟unclassified