Association Journal of CSIAM
Supervised by Ministry of Education of PRC
Sponsored by Xi'an Jiaotong University
ISSN 1005-3085  CN 61-1269/O1

Chinese Journal of Engineering Mathematics ›› 2016, Vol. 33 ›› Issue (3): 279-286.doi: 10.3969/j.issn.1005-3085.2016.03.006

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Explicit Solutions to Compressible Euler Equations on Invariant Subspaces

ZHU Chun-rong,   ZHU Dan-xia   

  1. College of Mathematics and Computer Science, Anhui Normal University, Wuhu 241000
  • Received:2014-09-05 Accepted:2016-02-23 Online:2016-06-15 Published:2016-08-15
  • Supported by:
    The National Natural Science Foundation of  China (11301007); the Natural Science Foundation of Anhui Province (1408085QA05).

Abstract:

The Euler equations are a very important model in fluid mechanics, which have been wide used in many areas. Constructing their explicit solutions is a very significant part in mathematical physics. Explicit solutions can provide the concrete examples to understand their nonlinear phenomena and physical implications. This paper is devoted to construct the explicit solutions to compressible Euler equations by using the invariant subspace method. In the sense of variable changes, the invariant conditions yield the invariant subspaces related to compressible Euler equations. On these invariant subspaces, they are reduced to systems of first-order ordinary differential equations. Then some explicit solutions of compressible Euler equations are obtained by solving these systems.

Key words: Euler equations, invariant subspace method, change of variables, explicit solutions

CLC Number: