Accession Number : AD0685247

Title :   VISCOUS AND THERMAL BOUNDARY LAYERS IN INCOMPRESSIBLE STEADY FLOWS ALONG LONGITUDINALLY CURVED SURFACES INCLUDING BOUNDARY LAYER CONTROL.

Descriptive Note : Annual summary rept. no. 8, 15 Nov 67-14 Nov 68,

Corporate Author : TECHNISCHE HOCHSCHULE AACHEN (WEST GERMANY) INSTITUT FUER MECHANIK

Personal Author(s) : Schultz-Grunow,F. ; Henseler,H. J.

Report Date : 1968

Pagination or Media Count : 36

Abstract : Self similar solutions for the viscous and thermal boundary layer are deduced in second order approximation for flows along longitudinally curved surfaces without or with boundary layer control. The solutions cover surfaces the curvature K of which is proportional to a power of the arc length x. To this family of surfaces also belong the stagnation point flow at a cylinder and the wedge flows with curved flanks of the wedge. The apex of the wedge is correlated to the curvature dependence on the arc length. The main problems of the work are the derivation of optimal coordinates which render a solution for the whole boundary layer and to set up a main flow being a potential flow in the framework of the approximation. Numerical solutions are deduced by applying the Runge Kutta method. (Author)

Descriptors :   (*INCOMPRESSIBLE FLOW, CURVED PROFILES), THERMODYNAMICS, BOUNDARY LAYER, VISCOSITY, BOUNDARY LAYER CONTROL, NUMERICAL METHODS AND PROCEDURES, STAGNATION POINT, CYLINDRICAL BODIES, WEDGES, WEST GERMANY

Subject Categories : Aerodynamics
      Aircraft
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE