Elliptic solutions of isentropic ideal compressible fluid flow in (3+1) dimensions

Abstract

A modified version of the conditional symmetry method, together with the classical method, is used to obtain new classes of elliptic solutions of the isentropic ideal compressible fluid flow in (3+1) dimensions. We focus on those types of solutions which are expressed in terms of the Weierstrass P-functions of Riemann invariants. These solutions are of special interest since we show that they remain bounded even when these invariants admit the gradient catastrophe. We describe in detail a procedure for constructing such classes of solutions. Finally, we present several examples of an application of our approach which includes bumps, kinks and multi-wave solutions.

arXiv comment17 pages, 1 figure, 3 tables

References in corpus (1)

• Riemann Invariants and Rank-k Solutions of Hyperbolic Systems

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