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2020 | OriginalPaper | Chapter

Towards Direct Numerical Simulations of Shock-Turbulence Interaction in Real Gas Flows on GPUs: Initial Validation

Authors : Pascal Post, Francesca di Mare

Published in: Non-Ideal Compressible Fluid Dynamics for Propulsion and Power

Publisher: Springer International Publishing

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Abstract

A better understanding of turbulent flows in presence of strong compressible and real gas effects is in high demand for future improvements in engineering applications, such as turbomachines for regenerative power production. Therefore, a solver for future investigation of shock-turbulence interaction in presence of strong real gas effects by means of direct numerical simulation with multi-parameter equations of state utilizing the computational power of GPUs is carefully designed and initially validated using the example of carbon dioxide. It relies on a hybrid energy-consistent WENO scheme based on a shock sensor. The implementation is validated with a set of test cases, comprising the Shu–Osher problem, the inviscid Taylor-Green vortex and the compressible decay of homogeneous isotropic turbulence with eddy shocklets. In absence of appropriate and well documented experimental results, the test cases are adapted to real gas in regions where the gas behavior can be deemed near to the ideal limit and results are compared with the validated ideal gas configurations.

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Metadata
Title
Towards Direct Numerical Simulations of Shock-Turbulence Interaction in Real Gas Flows on GPUs: Initial Validation
Authors
Pascal Post
Francesca di Mare
Copyright Year
2020
DOI
https://doi.org/10.1007/978-3-030-49626-5_5

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