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Record Details

Record 55 of 21284
Interactive method for computation of viscous flow with recirculation
External Online Source: doi:10.1016/0021-9991(81)90218-7
Author and Affiliation:
Brandeis, J.(NASA Ames Research Center, Moffett Field, Calif., United States)
Rom, J.(Technion - Israel Institute of Technology, Haifa, Israel)
Abstract: An interactive method is proposed for the solution of two-dimensional, laminar flow fields with identifiable regions of recirculation, such as the shear-layer-driven cavity flow. The method treats the flow field as composed of two regions, with an appropriate mathematical model adopted for each region. The shear layer is computed by the compressible boundary layer equations, and the slowly recirculating flow by the incompressible Navier-Stokes equations. The flow field is solved iteratively by matching the local solutions in the two regions. For this purpose a new matching method utilizing an overlap between the two computational regions is developed, and shown to be most satisfactory. Matching of the two velocity components, as well as the change in velocity with respect to depth is amply accomplished using the present approach, and the stagnation points corresponding to separation and reattachment of the dividing streamline are computed as part of the interactive solution. The interactive method is applied to the test problem of a shear layer driven cavity. The computational results are used to show the validity and applicability of the present approach.
Publication Date: Apr 01, 1981
Document ID:
19810052830
(Acquired Nov 30, 1995)
Accession Number: 81A37234
Subject Category: FLUID MECHANICS AND HEAT TRANSFER
Document Type: Journal Article
Publication Information: Journal of Computational Physics; p. Apr. 198; 40
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Technion - Israel Inst. of Tech.; Haifa, Israel
Description: 15p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CIRCULATION; COMPUTATIONAL FLUID DYNAMICS; FLOW DISTRIBUTION; INTERACTIVE CONTROL; TWO DIMENSIONAL FLOW; VISCOUS FLOW; CAVITY FLOW; COMPRESSIBLE BOUNDARY LAYER; LAMINAR FLOW; NAVIER-STOKES EQUATION; SHEAR LAYERS; STREAM FUNCTIONS (FLUIDS); VELOCITY DISTRIBUTION; VORTICITY
Imprint And Other Notes: Journal of Computational Physics, vol. 40, Apr. 1981, p. 396-410.
Miscellaneous Notes: p. 396-410
Availability Source: Other Sources
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