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首页> 外文期刊>Journal of Computational Physics >A 1D-3D mixed method for the numerical simulation of blast waves in confined geometries
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A 1D-3D mixed method for the numerical simulation of blast waves in confined geometries

机译:一维3D混合方法,用于有限空间内爆炸波的数值模拟

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Blast wave generated by a high detonating spherical charge and propagating in confined domains is modeled using the Euler equations. The problem is split into two parts. The first calculation part relies on spherical isotropy to solve the problem in the radial component. Overpressure distribution is presented and shows a very good agreement with experimental and numerical data. The one-dimensional data need to be made three-dimensional mesh-compatible thanks to an appropriate remapping technique. To this end, a remapping technique is presented and its effectiveness, accuracy and efficiency are demonstrated. The second calculation part consists of a three-dimensional computation fed with the remapped data. The effectiveness of this mixed approach is demonstrated through three-dimensional applications in confined domains.
机译:使用Euler方程对由高爆轰球电荷产生并在受限区域中传播的爆炸波进行建模。该问题分为两个部分。第一计算部分依靠球面各向同性来解决径向分量中的问题。给出了超压分布,并与实验和数值数据非常吻合。由于采用了适当的重新映射技术,因此一维数据必须与三维网格兼容。为此,提出了一种重新映射技术,并证明了其有效性,准确性和效率。第二计算部分由三维计算和重新映射的数据组成。通过在受限领域中的三维应用,证明了这种混合方法的有效性。

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