A New Multi-Physics CFD Framework for Hypersonic Flows

机译：高超声速流的新型多物理CFD框架

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The development of a multi-physics CFD method, capable of hybrid molecularrndynamics-continuum modelling of flows, is described in this paper. A blockstructuredrncell-centred finite-volume discretisation method for curvilinear meshesrnis used for the continuum regime. The formulation for the MD methods is based onrnprevious works undertaken by the authors. Different coupling methods for hybridrnmolecular dynamics-continuum simulations are investigated, including flux-basedrnmethods and methods based on the alternating Schwarz approach. The convergencernof both approaches for generic flow examples demonstrates the role of statisticalrnscatter in the molecular-level modelling on the convergence of the coupled system.rnFurthermore, extensions to more complex flows including high speeds arerndiscussed.

机译：本文描述了一种多物理场CFD方法的发展，该方法能够对流体进行分子动力学-连续体混合建模。块状结构的有限单元离散化方法，用于连续网格的曲线网格。 MD方法的制定是基于作者先前所做的工作。研究了混合分子动力学-连续谱模拟的不同耦合方法，包括基于通量的方法和基于交替Schwarz方法的方法。通用流示例的两种收敛方法都证明了统计散点在分子级建模中对耦合系统的收敛性的作用。此外，还讨论了对包括高速在内的更复杂流的扩展。

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来源
《New beginnings: challenges for aerospace innovation》|2009年|p.1-20|共20页
会议地点 Manchester(GB)
作者
Ren′e Steijl; George N. Barakos;
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作者单位

CFD Laboratory, Department of Engineering University of Liverpool, L69 3GH, U.K.Email: R.Steijl@liverpool.ac.uk;

CFD Laboratory, Department of Engineering University of Liverpool, L69 3GH, U.K.;

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中图分类航空、航天技术的研究与探索;
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5. A New Multi-Physics CFD Framework for Hypersonic Flows [C] . Ren′e Steijl, George N. Barakos CEAS European air and space conference . 2009

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A New Multi-Physics CFD Framework for Hypersonic Flows

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