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Book Investigation of Supersonic Chemically Reacting and Radiating Channel Flow

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...

Book Investigation of Radiative Interactions in Supersonic Internal Flows

Download or read book Investigation of Radiative Interactions in Supersonic Internal Flows 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 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyses and numerical procedures are presented to study the radiative interactions of absorbing emitting species in chemically reacting supersonic flow in various ducts. The 2-D time dependent Navier-Stokes equations in conjunction with radiative flux equation are used to study supersonic flows undergoing finite rate chemical reaction in a hydrogen air system. The specific problem considered is the flow of premixed radiating gas between parallel plates. Specific attention was directed toward studying the radiative contribution of H2O, OH, and NO under realistic physical and flow conditions. Results are presented for the radiative flux obtained for different gases and for various combination of these gases. The problem of chemically reacting and radiating flows was solved for the flow of premixed hydrogen-air through a 10 deg compression ramp. Results demonstrate that the radiative interaction increases with an increase in pressure, temperature, amount of participating species, plate spacing, and Mach number. Most of the energy, however, is transferred by convection in the flow direction. In general the results indicate that radiation can have a significant effect on the entire flow field. Tiwari, Surendra N. and Thomas, A. M. Unspecified Center CHEMICAL REACTIONS; FLOW DISTRIBUTION; FUEL-AIR RATIO; HYDROXYL RADICALS; NITROGEN OXIDES; PREMIXING; REACTING FLOW; SUPERSONIC FLOW; CONVECTIVE FLOW; DUCTED FLOW; ENERGY TRANSFER; GAS FLOW; GAS MIXTURES; MACH NUMBER; NAVIER-STOKES EQUATION; PARALLEL PLATES; SPACING; TIME DEPENDENCE; WATER...

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Studies on Nonequilibrium Phenomena in Supersonic Chemically Reacting Flows

Download or read book Studies on Nonequilibrium Phenomena in Supersonic Chemically Reacting Flows written by Rajnish Chandrasekhar and published by . This book was released on 1993 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Two Dimensional Numerical Simulation of a Supersonic Chemically Reacting Mixing Layer

Download or read book A Two Dimensional Numerical Simulation of a Supersonic Chemically Reacting Mixing Layer written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research has been undertaken to achieve an improved understanding of physical phenomena present when a supersonic flow undergoes chemical reaction. A detailed understanding of supersonic reacting flows is necessary to successfully develop advanced propulsion systems now planned for use late in this century and beyond. In order to explore such flows, a study was begun to create appropriate physical models for describing supersonic combustion, and to develop accurate and efficient numerical techniques for solving the governing equations that result from these models. From this work, two computer programs were written to study reacting flows. Both programs were constructed to consider the multicomponent diffusion and convection of important chemical species, the finite rate reaction of these species, and the resulting interaction of the fluid mechanics and the chemistry. The first program employed a finite difference scheme for integrating the governing equations, whereas the second used a hybrid Chebyshev pseudospectral technique for improved accuracy. Drummond, J. Philip Langley Research Center BOUNDARY LAYERS; CHEMICAL REACTIONS; FLUID MECHANICS; MIXING; MIXING LAYERS (FLUIDS); NUMERICAL ANALYSIS; SIMULATION; SUPERSONIC FLOW; CHEBYSHEV APPROXIMATION; COMPUTER PROGRAMS; FINITE DIFFERENCE THEORY; HYPERSONIC AIRCRAFT; SUPERSONIC COMBUSTION RAMJET ENGINES...

Book 30th Aerospace Sciences Meeting and Exhibit 92 0330 92 0369

Download or read book 30th Aerospace Sciences Meeting and Exhibit 92 0330 92 0369 written by and published by . This book was released on 1992 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book ERDA Energy Research Abstracts

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Study of Supersonic Flows with Chemical Reactions 2 Supersonic Nozzle Flow with a Reacting Gas Mixture at High Reactant Concentration

Download or read book Study of Supersonic Flows with Chemical Reactions 2 Supersonic Nozzle Flow with a Reacting Gas Mixture at High Reactant Concentration written by Peter P. Wegener and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Journal of Thermophysics and Heat Transfer

Download or read book Journal of Thermophysics and Heat Transfer written by and published by . This book was released on 1996 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This journal is devoted to the advancement of the science and technology of thermophysics and heat transfer through the dissemination of original research papers disclosing new technical knowledge and exploratory developments and applications based on new knowledge. It publishes papers that deal with the properties and mechanisms involved in thermal energy transfer and storage in gases, liquids, and solids or combinations thereof. These studies include conductive, convective, and radiative modes alone or in combination and the effects of the environment.

Book ERDA Energy Research Abstracts

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: