Accession Number : AD0660037

Title :   SOLUTION OF THE TIME-DEPENDENT NAVIER-STOKES EQUATIONS FOR THE FLOW OF DISSOCIATING GAS OVER A CIRCULAR CYLINDER.

Descriptive Note : Technical information series (Final),

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s) : Scala,S. M. ; Gordon,P.

Report Date : 10 MAY 1967

Pagination or Media Count : 69

Abstract : In the present investigation, the authors have extended their earlier work on the time-dependent Navier-Stokes equations to include the effects of diffusion and finite rates of chemical reactions for a nonequilibrium gas mixture. The governing system of nonlinear partial differential equations utilized includes the conservation of mass, momentum, energy and diffusing species, with temperature dependent transport properties and chemical reaction rates. These equations have been utilized in cylindrical coordinates to calculate the time dependent flow field which is formed when a planar shock wave is accelerated toward the cylinder by a planar piston. For the free stream Reynolds number (31.5) and Mach number (2.2) selected for the sample computations, results are presented for the variation of the radial and tangential components of velocity, the density, the temperature and the mass fraction of nitrogen atoms as a function of position and time. The motion of the sonic surface enveloping the cylinder is also shown. (Author)

Descriptors :   (*PARTIAL DIFFERENTIAL EQUATIONS, GASES), (*NONEQUILIBRIUM FLOW, *GASES), DIFFUSION, NONLINEAR DIFFERENTIAL EQUATIONS, REYNOLDS NUMBER, VELOCITY, MACH NUMBER, SUPERSONIC FLOW, TEMPERATURE, CYLINDRICAL BODIES, SHOCK WAVES, ACCELERATION, FLUID FLOW

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE