2000 character limit reached
A Family of Entropy-Conservative Flux Functions for the Euler Equations (1807.03832v2)
Published 10 Jul 2018 in math.NA and cs.NA
Abstract: Entropy-conservative numerical flux functions can be used to construct high-order, entropy-stable discretizations of the Euler and Navier-Stokes equations. The purpose of this short communication is to present a novel family of such entropy-conservative flux functions. The proposed flux functions are solutions to quadratic optimization problems and admit closed-form, computationally affordable expressions. We establish the properties of the flux functions including their continuous differentiability, which is necessary for high-order discretizations.