THERMAL SCIENCE
International Scientific Journal
ON THE IONIZED GAS BOUNDARY LAYER ADJACENT TO THE BODIES OF REVOLUTION IN THE CASE OF VARIABLE ELECTROCONDUCTIVITY
ABSTRACT
This paper studies the ionized gas i.e. air flow in an axisymmetrical boundary layer adjacent to the bodies of revolution. The contour of the body within the fluid is nonporous. The ionized gas flows under the conditions of equilibrium ionization. A concrete form of the electroconductivity variation law has been assumed and studied here. Through transformation of variables and introduction of sets of parameters, V. N. Saljnikov's version of the general similarity method has been successfully applied. Generalized equations of axisymmetrical ionized gas boundary layer have been obtained and then numerically solved in a three-parametric localized approximation.
KEYWORDS
PAPER SUBMITTED: 2011-12-05
PAPER REVISED: 2012-04-02
PAPER ACCEPTED: 2012-10-03
THERMAL SCIENCE YEAR
2013, VOLUME
17, ISSUE
Issue 2, PAGES [555 - 566]
- Loitsianskii, L.G., Mechanics of Liquids and Gases, Begell House Publishers, New York, USA, 1995
- Saljnikov, V., Dallmann, U., Generalized Similarity Solutions for Three Dimensional, Laminar, Steady Compressible Boundary Layer Flows on Swept, Profiled Cylinders (in German), Institute for Theoretical Fluid Mechanics, DLR-FB 89-34, Göttingen, Germany, 1989
- Krivtsova, N.V., Laminar Boundary Layer in an Equilibrium Dissociated Gas for Arbitrary External Velocity Distribution, Fluid Dynamics, 1 (1966), 5, pp. 73-76
- Krivtsova, N.V., A Parametric Method of Solving Laminar Boundary Layer Equations with a Longitudinal Pressure Gradient in an Equilibrium-Dissociated Gas, Journal of Engineering Physics and Thermophysics, 10 (1966), 2, pp. 95-100
- Boričić, Z., Nikodijević D., Milenković, D., Unsteady MHD Boundary Layer on a Porous Surface, Facta Universitatis, Series: Mechanics, Automatic Control and Robotics, 1 (1995), 5, pp. 631-643
- Pavlović, M., Temperature Boundary Layer on a Rotating Surface - the Problem of the Constant Temperature Wall, Theoret. Appl. Mech., 33 (2006), 2, pp. 91-106
- Obrović, B., Boundary Layer of Dissociated Gas (in Serbian), Monograph, University of Kragujevac, Faculty of Mechanical Engineering, Kragujevac, Serbia, 1994
- Obrović, B., Savić, S., Dissociated Gas Flow in the Boundary Layer in the Case of a Porous Contour of the Body within Fluid, Facta Universitatis, Series: Mechanics, Automatic Control and Robotics, 3 (2003), 15, pp. 989-1000
- Savić S., Obrović, B., The Influence of Variation of Electroconductivity on Ionized Gas Flow in the Boundary Layer along a Porous Wall, Theoret. Appl. Mech., 33 (2006), 2, pp. 149-179
- Obrović, B., Parametric Method in the Boundary-Layer Theory of Ionized Gas whose Electroconductivity is a Function of the Longitudinal Velocity Gradient, Acta Mech., 147 (2001), 1-4, pp. 35-44
- Obrović, B., Saljnikov V., Boričić, Z., Boundary Layer Flow of Ideally Dissociated Chemically "Frozen" Gas - Influence of Pr-Number, Acta Mech., 71 (1988), 1-4, pp. 195-213
- Ginzburg, I.P., Friction and Heat Transfer in the Motion of a Gas Mixture (in Russian), Leningrad State University Press, Leningrad, Russia, 1975
- Anderson, J.D.Jr., Hypersonic and High Temperature Gas Dynamics, McGraw-Hill Book Company, New York, St. Louis, San Francisco, USA, 1989
- Dorrance, W.H., Viscous Hypersonic Flow: Theory of Reacting and Hypersonic Boundary Layers, McGraw-Hill Book Company, New York, USA, 1962
- Loitsianskii, L.G., Laminar Boundary Layer (in German), Akademie-Verlag, Berlin, Germany, 1967
- Saljnikov, V., Boričić, Z., Nikodijević, D., Parametric Method in Unsteady MHD Boundary Layer Theory of Fluid with Variable Electroconductivity, Facta Universitatis, Series: Mechanics, Automatic Control and Robotics, 2 (1997), 7/2, pp. 331-340
- Schlichting, H., Boundary-Layer Theory (in German), G. Braun, Karlsruhe, Germany, 1974
- Obrović, B., Savić, S., Ionized Gas Boundary Layer on a Porous Wall of the Body within the Electroconductive Fluid, Theoret. Appl. Mech., 31 (2004), 1, pp. 47-71
- Obrović, B., Savić, S., Petrović, R., Ionized Gas Boundary Layer on Bodies of Revolution in the Presence of Magnetic Field, Tehnički vjesnik - Technical gazette, 17 (2010), 1, pp. 35-42
- Obrović, B., Boričić, Z., Savić, S., Boundary Layer of Ionized Gas in the Case of Changeable Electroconductivity, Facta Universitatis, Series: Mechanics, Automatic Control and Robotics, 2 (1999), 9, pp. 953-963
- Obrović, B., Nikodijević, D., Savić, S., Boundary Layer of Dissociated Gas on Bodies of Revolution of a Porous Contour, Strojniški vestnik - Journal of Mechanical Engineering, 55 (2009), 4, pp. 244-253