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arXiv 2209.14729math.AP
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可压缩Navier-Stokes-BGK模型在索伯列夫空间中指数权的局部适定性

Local well-posedness for the compressible Navier-Stokes-BGK model in Sobolev spaces with exponential weight

Young-Pil Choi, Jinwook Jung

摘要:

喷雾是由底层气体中的分散颗粒组成的复杂流动。本文研究了由可压缩Navier-斯托克斯方程和BoltzmannBGK方程组成的中厚喷雾方程。在这里,两个方程的耦合是通过摩擦(或拖曳)力,这取决于可压缩流体的密度和颗粒与流体之间的相对速度。对于Navier-Stokes-BGK方程组,我们在带指数权的索伯列夫空间中建立了解的存在唯一性.

英文摘要:

Sprays are complex flows constituted of dispersed particles in an underlying gas. In this paper, we are interested in the equations for moderately thick sprays consisting of the compressible Navier-Stokes equations and Boltzmann BGK equation. Here the coupling of two equations is through a friction (or drag) force which depends on the density of compressible fluid and the relative velocity between particles and fluid. For the Navier-Stokes-BGK system, we establish the existence and uniqueness of solutions in Sobolev spaces with exponential weight.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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