Self-similar solution of a shock propagation in a non-ideal gas

• Autorzy: Vishwakarama J. P. , Chaube V. , Patel A.
• Języki publikacji: EN

Abstrakty

EN

Similarity solutions for one-dimensional unsteady self-similar flow behind a strong shock driven out by a cylindricaI (or spherical) piston in a medium which is assumed to be a non-ideaI gas obeying a simplified van der Waals equation of state are obtained. Both the cases, when the flow between the shock and the piston is isothermal or adiabatic, are considered. It is observed that the assumption of zero temperature gradient brings a profound change in the density distribution as compared to that of the adiabatic flow; whereas the pressure and velocity distributions are little affected. Effects of the non-idealness of the gas on the flow-field between the shock and the piston are investigated. It is found that there is a decrease in the shock strength due to non-ideaIness of the gas. This decrease in the shock strength is interpreted as a result of a decrease in the compressibility of the gas.

Słowa kluczowe

EN

shock waves; piston problem; self-similarity; non-ideaI gas; isothermaI and adiabatic flows

PL

przepływ izotermiczny; adiabatyczny przepływ

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2007
• Tom: Vol. 12, no 3
• Strony: 813--829
• Opis fizyczny: Bibliogr. 20 poz., wykr.

Twórcy

autor

Vishwakarama J. P.

autor

Chaube V.

autor

Patel A.

• Department of Mathematics and Statistics D.D.U. Gorakhpur University Gorakhpur-273009, INDIA,

Bibliografia

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