Download or read book Investigation of Supersonic Chemically Reacting and Radiating Channel Flow written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-18 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2-D time-dependent Navier-Stokes equations are used to investigate supersonic flows undergoing finite rate chemical reaction and radiation interaction for a hydrogen-air system. The explicit multistage finite volume technique of Jameson is used to advance the governing equations in time until convergence is achieved. The chemistry source term in the species equation is treated implicitly to alleviate the stiffness associated with fast reactions. The multidimensional radiative transfer equations for a nongray model are provided for a general configuration and then reduced for a planar geometry. Both pseudo-gray and nongray models are used to represent the absorption-emission characteristics of the participating species. The supersonic inviscid and viscous, nonreacting flows are solved by employing the finite volume technique of Jameson and the unsplit finite difference scheme of MacCormack. The specified problem considered is of the flow in a channel with a 10 deg compression-expansion ramp. The calculated results are compared with those of an upwind scheme. The problem of chemically reacting and radiating flows are solved for the flow of premixed hydrogen-air through a channel with parallel boundaries, and a channel with a compression corner. Results obtained for specific conditions indicate that the radiative interaction can have a significant influence on the entire flow field. Mani, Mortaza and Tiwari, Surendra N. Unspecified Center CHANNEL FLOW; CHEMICAL REACTIONS; RADIATIVE HEAT TRANSFER; SUPERSONIC FLOW; AIR; DIMENSIONS; FINITE DIFFERENCE THEORY; FINITE VOLUME METHOD; HYDROGEN; INVISCID FLOW; NAVIER-STOKES EQUATION; TIME DEPENDENCE; VISCOUS FLOW...