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2004, vol. 32, iss. 1, pp. 19-24
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On the transformations of variables in the solution of compressible boundary layer equations
O transformacijama promenljivih kod rešavanja jednačina graničnog sloja stišljivog fluida
Abstract
This paper is concerned with the compressible fluid flow, i.e. the dissociated gas in the boundary layer. It defines in a logical way the transformations of the longitudinal and transversal variables of the boundary layer, which are already known and found in the literature. These transformations are used as preceding ones to General Similarity Method for the solution of compressible boundary layer equations. This paper shows that these transformations can be defined from the condition of the identity of the form of the corresponding values and boundary layer equations of compressible and incompressible fluid.
Sažetak
Ovaj rad se odnosi na strujanje stišljivog fluida, odnosno disociranog gasa u graničnom sloju. U radu su na jedan logični način definisane transformacije podužne i poprečne promenljive graničnog sloja, koje su već od ranije poznate u literaturi. Pomenute transformacije se koriste kao prethodne kod primene Metode uopštene sličnosti za rešavanje jednačina graničnog sloja stišljivog fluida. U radu je pokazano da se ove transformacije mogu definisati iz uslova istovetnosti oblika odgovarajućih veličina i jednačina graničnog sloja stišljivog i nestišljivog fluida.
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