The boundary layer on a finite flat plate

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Physics of Fluids A; (USA)

DOI:https://doi.org/10.1063/1.858143· OSTI ID:6144625

McLachlan, R I ^[1]

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1. Applied Mathematics, California Institute of Technology, Pasadena, California 91125 (US)

The problem of finding the flow over a finite flat plate aligned with a uniform free stream is revisited. Multigrid is used to obtain accurate numerical solutions up to a Reynolds number of 4000. Fourier boundary conditions keep the computational domain small, with no loss of accuracy. Near the trailing edge, excellent agreement with first-order triple-deck theory is found. However, previous comparisons between computations, experiments, and triple-deck theory are shown to be misleading: In fact, triple-deck theory only accounts for half the drag excess (that part not due to the first-order Blasius boundary layer) even at {ital R}=4000. The remainder is shown to be due to, among other things, a large displacementlike effect in the boundary layer, i.e., an {ital O}({ital R}{sup {minus}1}) increase in skin friction extending over the whole plate.

• DOE Contract Number: FG03-89ER25073
• OSTI ID: 6144625
• Journal Information: Physics of Fluids A; (USA), Journal Name: Physics of Fluids A; (USA) Vol. 3:2; ISSN 0899-8213; ISSN PFADE
• Country of Publication: United States
• Language: English

Related Subjects

640410* -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALIGNMENT
BOUNDARY CONDITIONS
BOUNDARY LAYERS
DIMENSIONS
FLOW MODELS
FLUID FLOW
FOURIER ANALYSIS
FRICTION
INCOMPRESSIBLE FLOW
LAYERS
LENGTH
MATHEMATICAL MODELS
NUMERICAL SOLUTION
PLATES
REYNOLDS NUMBER
VISCOSITY