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  • 1
    ISSN: 0271-2091
    Keywords: Axisymmetric turbulent flow ; Combustors ; Diffusers ; Navier-Stokes equations k-∊ model ; Zonal grid ; Finite differences ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Numerical studies of turbulent flow in an axisymmetric 45° expansion combustor and bifurcated diffuser are presented. The Navier-Stokes equations incorporating a k-∊ model were solved in a non-orthogonal curvillinear co-ordinate system. A zonal grid method, wherein the flow field was divided into several subsections, was developed. This approach permitted different computational schemes to be used in the various zones. In addition, grid generation was made a more simple task. However, treatment of the zonal boundaries required special handling. Boundary overlap and interpolating techniques were used and an adjustment of the flow variables was required to assure conservation of mass flux. Three finite differencing methods - hybrid, quadratic upwind and skew upwind - were used to represent the convection terms. Results were compared with existing experimental data. In general, good agreement between predicted and measured values was obtained.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2019-07-13
    Description: System analysis to determine orbital parameters influence on mission scientific objectives under engineering constraints, using value function
    Keywords: SPACE SCIENCES
    Type: AIAA PAPER 68-1052 , ANNUAL MEETING AND TECHNICAL DISPLAY; OCT. 21-24, 1968; PHILADELPHIA, PA
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  • 3
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    Publication Date: 2019-07-13
    Description: Analytical technique for unmanned spacecraft sizing for planetary missions, considering scientific objectives, characteristics and requirements
    Keywords: SPACE VEHICLES
    Type: AIAA PAPER 69-125 , AMERICAN INST. OF AERONAUTICS AND ASTRONAUTICS, AEROSPACE SCIENCES MEETING; JAN. 20-22, 1969; NEW YORK, NY|; ADEMIE DES SCIENCES
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  • 4
    Publication Date: 2019-07-13
    Description: System analysis to determine orbital parameters influence on mission scientific objectives under engineering constraints, using value function
    Keywords: SPACE SCIENCES
    Type: AIAA PAPER 68-1052 , ; STITUTION OF ENGINEE|AMERICAN INST. OF AERONAUTICS AND ASTRONAUTICS, ANNUAL MEETING AND TECHNICAL DISPLAY, 5TH; OCT. 21-24, 1968; PHILADELPHIA, PA
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  • 5
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    In:  Other Sources
    Publication Date: 2019-07-13
    Description: Analytical technique for unmanned spacecraft sizing for planetary missions, considering scientific objectives, characteristics and requirements
    Keywords: SPACE VEHICLES
    Type: AIAA PAPER 69-125 , AMERICAN INST. OF AERONAUTICS AND ASTRONAUTICS, AEROSPACE SCIENCES MEETING; JAN. 20-22, 1969; NEW YORK, NY
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