Navier–Stokes Computations in Micro Shock Tubes |
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Authors: | David E Zeitoun Yves Burtschell |
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Institution: | 1. Dpt ME, IUSTI/UMR CNRS 6595, Université de Provence, Polytech’Marseille, Technop?le de Chateau Gombert, 5 rue Enrico Fermi, 13013, Marseille, France
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Abstract: | Micro shock tube flows were simulated using unsteady 2D Navier–Stokes equations combined with boundary slip velocities and temperature jumps conditions. These simulations were performed using the parallel version of a multi-block finite-volume home code. Different initial low pressures and shock tube diameters allow to have the scaling ratio ReD/4L vary. The numerical results show a strong attenuation of the shock wave strength with a decrease of the hot flow values along the tube. When the scaling ratio decreases the shock waves can transform into compression waves. Comparison to the existing 1D models also shows the limit of these models. |
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Keywords: | Micro shock tube Navier– Stokes equations Slip conditions Finite-volume method |
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