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  • 1
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    Combination Of Techniques For Computing Incompressible Flow (1990)
    In:  Other Sources
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    Publication Date: 2019-07-12
    Description: Pseudocompressibility, upwind differencing, and other techniques used to solve Navier-Stokes equations. Scheme for finite-difference numerical solution of two-dimensional Navier-Stokes equations of incompressible flow combines several recently developed methods, each developed to increase speed and/or accuracy of computations of this kind.
    Keywords: MECHANICS
    Type: ARC-12257 , NASA Tech Briefs (ISSN 0145-319X); 14; 6; P. 71
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Methods Of Simulation Of Incompressible Flow (1991)
    In:  Other Sources
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    Publication Date: 2019-07-12
    Description: Report discusses methods for numerical simulation of Navier-Stokes equations of viscous, incompressible flow, with emphasis on pseudocompressibility method. Advanced computational techniques reviewed contribute to improved designs by rapidly providing detailed information about conditions at all points in flow fields of proposed designs.
    Keywords: MECHANICS
    Type: ARC-12199 , NASA Tech Briefs (ISSN 0145-319X); 15; 12; P. 74
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Faster Algorithm For Computation Of Incompressible Flow (1991)
    In:  Other Sources
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    Publication Date: 2019-07-12
    Description: Improved algorithm yields faster numerical solutions of Navier-Stokes equations of steady or unsteady three-dimensional flow of incompressible fluid. In artificial-compressibility method, unsteady flow treated as incompressible in advancing from one time step to next, but at each time step (or in steady state), fluid treated as having variable compressibility enabling propagation of flow field, and subiterations performed in increments of pseudotime until effects of compressibility subside. Directly couples pressure and velocity fields at same time step and converts elliptic incompressible Navier-Stokes equations to hyperbolic form more amenable to numerical integration.
    Keywords: MECHANICS
    Type: ARC-12370 , NASA Tech Briefs (ISSN 0145-319X); 15; 2; P. 52
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    NASA TECHNICAL REPORTS
  • 4
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    Computing Blood Flows (1990)
    In:  Other Sources
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    Publication Date: 2019-07-12
    Description: Methods developed for aerospace applied to mechanics of biofluids. Report argues use of advanced computational fluid dynamics to analyze flows of biofluids - especially blood. Ability to simulate numerically and visualize complicated, time-varying three-dimensional flows contributes to understanding of phenomena in heart and blood vessels, offering potential for development of treatments for abnormal flow conditions.
    Keywords: MECHANICS
    Type: ARC-12253 , NASA Tech Briefs (ISSN 0145-319X); 14; 10; P. 83
    Format: text
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    NASA TECHNICAL REPORTS
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