Rankine--Hugoniot conditions for fluids whose energy depends on space and time derivatives of density
arXiv:2010.02842 · doi:10.1016/j.wavemoti.2020.102620
Abstract
By using the Hamilton principle of stationary action, we derive the governing equations and Rankine-Hugoniot conditions for continuous media where the specific energy depends on the space and time density derivatives. The governing system of equations is a time reversible dispersive system of conservation laws for the mass, momentum and energy. We obtain additional relations to the Rankine-Hugoniot conditions coming from the conservation laws and discuss the well-founded of shock wave discontinuities for dispersive systems.
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