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  • 1
    Electronic Resource
    Electronic Resource
    Numerical simulation methods of incompressible flows and an application to the Space Shuttle main engine (1988)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 8 (1988), S. 1241-1268 
    Details
    ISSN: 0271-2091
    Keywords: Incompressible flow ; Navier-Stokes equations ; 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: This paper discusses incompressible Navier-Stokes solution methods with an emphasis on the pseudocompressibility method. A steady-state flow solver based on the pseudocompressibility approach is then described. This flow solver code has been used to analyse the internal flow in the Space Shuttle main engine hot-gas manifold. Salient features associated with this three-dimensional realistic flow simulation are discussed. Numerical solutions relevant to the current engine analysis and the redesign effort are discussed along with experimental results. This example demonstrates the potential of computational fluid dynamics as a design tool for aerospace applications.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650081011
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    Paper (German National Licenses)
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  • 2
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    Navier-Stokes flow simulation of the Space Shuttle Main Engine hot gas manifold (1992)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Keywords: SPACECRAFT PROPULSION AND POWER
    Type: Journal of Spacecraft and Rockets (ISSN 0022-4650); 29; 253-259
    Format: text
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  • 3
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    A three-dimensional incompressible Navier-Stokes flow solver using primitive variables (1986)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Keywords: AERODYNAMICS
    Type: AIAA Journal (ISSN 0001-1452); 24; 390-396
    Format: text
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  • 4
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    Numerical simulation methods of incompressible flows and an application to the Space Shuttle main engine (1988)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: This paper discusses incompressible Navier-Stokes solution methods with an emphasis on the pseudocompressibility method. A steady-state flow solver based on the pseudocompressibility approach is then described. This flow solver code has been used to analyze the internal flow in the Space Shuttle main engine hot-gas manifold. Salient features associated with this three-dimensional realistic flow simulation are discussed. Numerical solutions relevant to the current engine analysis and the redesign effort are discussed along with experimental results. This example demonstrates the potential of computational fluid dynamics as a design tool for aerospace applications.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: International Journal for Numerical Methods in Fluids (ISSN 0271-2091); 8; 1241-126
    Format: text
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  • 5
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    A diagonal algorithm for the method of pseudocompressibility (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The method of pseudocompressibility has been shown to be an efficient method for obtaining a steady-state solution to the incompressible Navier-Stokes equations. Recent improvements to this method include the use of a diagonal scheme for the inversion of the equations at each iteration. The necessary transformations have been derived for the pseudocompressibility equations in generalized coordinates. The diagonal algorithm reduces the computing time necessary to obtain a steady-state solution by a factor of nearly three. Implicit viscous terms are maintained in the equations, and it has become possible to use fourth-order implicit dissipation. The steady-state solution is unchanged by the approximations resulting from the diagonalization of the equations. Computed results for flow over a two-dimensional backward-facing step and a three-dimensional cylinder mounted normal to a flat plate are presented for both the old and new algorithms. The accuracy and computing efficiency of these algorithms are compared.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: AIAA PAPER 86-1060
    Format: text
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  • 6
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    A numerical study of incompressible juncture flows (1986)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The laminar, steady juncture flow around single or multiple posts mounted between two flat plates is simulated using the three dimensional incompressible Navier-Stokes code, INS3D. The three dimensional separation of the boundary layer and subsequent formation and development of the horseshoe vortex is computed. The computed flow compares favorably with the experimental observation. The recent numerical study to understand and quantify the juncture flow relevant to the Space Shuttle main engine power head is summarized.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NASA-TM-88319 , A-86305 , NAS 1.15:88319
    Format: application/pdf
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  • 7
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    Potential applications of computational fluid dynamics to biofluid analysis (1988)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Computational fluid dynamics was developed to the stage where it has become an indispensable part of aerospace research and design. In view of advances made in aerospace applications, the computational approach can be used for biofluid mechanics research. Several flow simulation methods developed for aerospace problems are briefly discussed for potential applications to biofluids, especially to blood flow analysis.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NASA-TM-100089 , A-88126 , NAS 1.15:100089
    Format: application/pdf
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  • 8
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    An incompressible Navier-Stokes flow solver in three-dimensional curvilinear coordinate systems using primitive variables (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: An implicit, finite-difference computer code has been developed to solve the incompressible Navier-Stokes equations in a three-dimensional, curvilinear coordinate system. The pressure-field solution is based on the pseudo compressibility approach in which the time derivative pressure term is introduced into the mass conservation equation to form a set of hyperbolic equations. The solution procedure employs an implicit, approximate factorization scheme. The Reynolds stresses, that are uncoupled from the implicit scheme, are lagged by one time-step to facilitate implementing various levels of the turbulence model. Test problems for external and internal flows are computed, and the results are compared with existing experimental data. The application of this technique for general three-dimensional problems is then demonstrated.
    Keywords: AERODYNAMICS
    Type: AIAA PAPER 84-0253
    Format: text
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  • 9
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    A solution procedure for three-dimensional incompressible Navier-Stokes equation and its application (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An implicit, finite-difference procedure is presented for numerically solving viscous incompressible flows. For convenience of applying the present method to three-dimensional problems, primitive variables, namely the pressure and velocities, are used. One of the major difficulties in solving incompressible flows that use primitive variables is caused by the pressure field solution method which is used as a mapping procedure to obtain a divergence-free velocity field. The present method is designed to accelerate the pressure-field solution procedure. This is achieved by the method of pseudocompressibility in which the time derivative pressure term is introduced into the mass conservation equation. The pressure wave propagation and the spreading of the viscous effect is investigated using simple test problems. The present study clarifies physical and numerical characteristics of the pseudo-compressible approach in simulating incompressible flows. Computed results for external and internal flows are presented to verify the present procedure. The present algorithm has been shown to be very robust and accurate if the selection of the pseudo-compressibility parameter has been made according to the guidelines given.
    Keywords: AERODYNAMICS
    Type: NASA-TM-85978 , A-9801 , NAS 1.15:85978
    Format: application/pdf
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  • 10
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    A computational method for viscous incompressible flows (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An implicit, finite-difference procedure for numerically solving viscous incompressible flows is presented. The pressure-field solution is based on the pseudocompressibility method in which a time-derivative pressure term is introduced into the mass-conservation equation to form a set of hyperbolic equations. The pressure-wave propagation and the spreading of the viscous effect is investigated using simple test problems. Computed results for external and internal flows are presented to verify the present method which has proved to be very robust in simulating incompressible flows.
    Keywords: AERODYNAMICS
    Type: NASA-TM-85958 , A-9748 , NAS 1.15:85958
    Format: application/pdf
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