Calculations of Separated 3-D Flows with a Pressure-staggered Navier-Stokes Equations Solver PDF Download
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Category :
Languages : en
Pages : 18
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Author:
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ISBN:
Category :
Languages : en
Pages : 18
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725503441
Category :
Languages : en
Pages : 32
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A Navier-Stokes equations solver based on a pressure correction method with a pressure-staggered mesh and calculations of separated three-dimensional flows are presented. It is shown that the velocity pressure decoupling, which occurs when various pressure correction algorithms are used for pressure-staggered meshes, is caused by the ill-conditioned discrete pressure correction equation. The use of a partial differential equation for the incremental pressure eliminates the velocity pressure decoupling mechanism by itself and yields accurate numerical results. Example flows considered are a three-dimensional lid driven cavity flow and a laminar flow through a 90 degree bend square duct. For the lid driven cavity flow, the present numerical results compare more favorably with the measured data than those obtained using a formally third order accurate quadratic upwind interpolation scheme. For the curved duct flow, the present numerical method yields a grid independent solution with a very small number of grid points. The calculated velocity profiles are in good agreement with the measured data. Kim, S.-W. Unspecified Center NASA-CR-187065, E-5988, NAS 1.26:187065 NCC3-180; RTOP 505-62-52...
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Category : Aeronautics
Languages : en
Pages : 704
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Category : Aeronautics
Languages : en
Pages : 492
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Category : Government publications
Languages : en
Pages : 1112
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Author:
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Category : Aeronautics
Languages : en
Pages : 974
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Author:
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Category :
Languages : en
Pages : 36
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Category :
Languages : en
Pages : 46
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Category : Mechanics, Applied
Languages : en
Pages : 400
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 526
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