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On the suppression of shock-induced separation in Bethe-Zel’dovich-Thompson fluids. (English) Zbl 0970.76052
Bethe-Zel’dovich-Thomson fluids are ordinary gases which have specific heat large enough to make negative the fundamental gasynamic derivative $$\Gamma= a/\rho+{\partial a\over\partial\rho}|_s$$. Here, the authors demonstrate that the unique dynamics of these fluids can result in a suppression of shock-induced separation. Numerical tests performed reveal that the physical mechanism leading to this suppression is directly related to the disintegration of any compression discontinuities originating in the flow. It is also demonstrated that the interaction of expansion shocks with the boundary produces no adverse effects.

##### MSC:
 76L05 Shock waves and blast waves in fluid mechanics 82D15 Statistical mechanical studies of liquids
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