Granični sloj ioniziranog plina na rotacijskim tijelima pri postojanju magnetskog polja

This paper studies ionized gas flow in the boundary layer on bodies of revolution. The present magnetic field is normal to a nonporous contour of the body. The governing boundary layer equations are brought to a generalized form by general similarity method. The obtained equations are numerically solved by finite differences method. Based on the obtained solutions, diagrams of distributions of physical qualities in the boundary layer are given. Conclusions of behaviour of these quantities for the studied ionized gas problem are also drawn.Istraživano je strujanje ioniziranog plina u graničnom sloju na rotacijskim tijelima. Prisutno magnetsko polje je okomito na neporoznu konturu tijela. Polazne jednadžbe graničnog sloja dovedene su na uopćeni oblik metodom uopćene sličnosti u verziji Saljnikova. Dobivene jednadžbe numerički su riješene metodom konačnih razlika. Na osnovu dobivenih rješenja prikazani su dijagrami raspodjela fizikalnih veličina u graničnom sloju. Izvedeni su zaključci o ponašanju ovih veličina kod razmatranog problema strujanja ioniziranog plina

Ionized gas boundary layer on a porous wall of the body within the electroconductive fluid

This paper investigates the ionized gas flow in the boundary layer, when the contour of the body within the fluid is porous. Ionized gas is exposed to the influence of the outer magnetic field induction Bm = Bm(x), which is perpendicular to the contour of the body within the fluid. It is presumed that the electroconductivity of the ionized gas is a function only of the longitudinal coordinate, i.e. ¾ = ¾(x). By means of adequate transformations, the governing boundary layer equations are brought to a generalized form. The obtained generalized equations are solved in a four-parameter localized approximation. Based on the obtained numerical solutions, diagrams of important physical values and characteristics of the boundary layer have been made. Conclusions have also been drawn

Analysis of the axisymmetrical ionized gas boundary layer adjacent to porous contour of the body of revolution

The ionized gas flow in the boundary layer on bodies of revolution with porous contour is studied in this paper. The gas electroconductivity is assumed to be a function of the longitudinal coordinate x. The problem is solved using Saljnikov's version of the general similarity method. This paper is an extension of Saljnikov’s generalized solutions and their application to a particular case of magnetohydrodynamic (MHD) flow. Generalized boundary layer equations have been numerically solved in a four-parametric localized approximation and characteristics of some physical quantities in the boundary layer has been studied. [Projekat Ministarstva nauke Republike Srbije, br. ON 174014

THE INFLUENCE OF THE MAGNETIC FIELD ON THE IONIZED GAS FLOW ADJACENT TO THE POROUS WALL

THE INFLUENCE OF THE MAGNETIC FIELD ON THE IONIZED GAS FLOW ADJACENT TO THE POROUS WAL