Coupling of the boundary element method with an integral momentum boundary-layer technique to calculate forces and moments on three-dimensional bodies

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:6219099

Hailey, C. E.; Ingber, M. S.; Tadios, E. L.

The direct boundary element method is used to calculate the potential flow about bodies of complex geometry in a uniform stream at arbitrary angles of attack. The solution makes use of the double-node concept to improve the quality of the solution in regions with corners and reentrant boundaries. The boundary element method is coupled to an integral momentum boundary-layer solution which accounts for laminar and turbulent boundary layers and the effects of surface roughness. Axial force predictions are compared with experimental data for several shapes and show good agreement. Pitching moment and normal force calculations on axisymmetric and three-dimensional bodies also show agreement with experiment for small angles of attack. 12 refs., 7 figs., 1 tab.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6219099
• Report Number(s): SAND-88-2115C; CONF-890677-1; ON: DE89006328
• Resource Relation: Conference: 4. international conference on boundary elements, Windsor, Canada, 6 Jun 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
POTENTIAL FLOW
NUMERICAL SOLUTION
BOUNDARY LAYERS
CONTINUITY EQUATIONS
EQUATIONS OF MOTION
INCOMPRESSIBLE FLOW
LAMINAR FLOW
ROUGHNESS
THEORETICAL DATA
THREE-DIMENSIONAL CALCULATIONS
TURBULENT FLOW
DATA
DIFFERENTIAL EQUATIONS
EQUATIONS
FLUID FLOW
INFORMATION
LAYERS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
SURFACE PROPERTIES
420200* - Engineering- Facilities
Equipment
& Techniques
640410 - Fluid Physics- General Fluid Dynamics