A vortex panel analysis of circular-arc bluff-bodies in unsteady flow

Conference · Sat Dec 31 23:00:00 EST 1988

OSTI ID:6278245

Strickland, J H

A method which is capable of calculating the unsteady flow field around circular-arc bluff bodies of zero thickness is presented. This method utilizes linear vortex panels to model the body surface and a portion of the wake surfaces. Discrete vortices are used to model the remainder of the wake surfaces. Separation is assumed to occur at the sharp edges of the bodies. Numerical results for circular-arc bodies with included angles of less than 180/degree/ are compared with experimental data and found to be in good agreement. 31 refs., 15 figs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6278245
• Report Number(s): SAND-89-0366C; CONF-8904118-2; ON: DE89007141
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990230 -- Mathematics & Mathematical Models-- (1987-1989)
AERODYNAMICS
AIRFOILS
CALCULATION METHODS
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
DRAG
EQUATIONS
FINITE ELEMENT METHOD
FLOW MODELS
FLUID FLOW
FLUID MECHANICS
MATHEMATICAL MODELS
MECHANICS
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
PARACHUTES
PARTIAL DIFFERENTIAL EQUATIONS
SIMULATION
UNSTEADY FLOW
VORTEX FLOW
VORTICES