Prediction of forces and moments on finned bodies at high angle of attack in transonic flow

Technical Report · Tue Mar 31 23:00:00 EST 1981

DOI:https://doi.org/10.2172/6501712· OSTI ID:6501712

Oberkampf, W. L.

This report describes a theoretical method for the prediction of fin forces and moments on bodies at high angle of attack in subsonic and transonic flow. The body is assumed to be a circular cylinder with cruciform fins (or wings) of arbitrary planform. The body can have an arbitrary roll (or bank) angle, and each fin can have individual control deflection. The method combines a body vortex flow model and lifting surface theory to predict the normal force distribution over each fin surface. Extensive comparisons are made between theory and experiment for various planform fins. A description of the use of the computer program that implements the method is given.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6501712
• Report Number(s): SAND-80-2380
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
AERODYNAMICS
COMPUTER CALCULATIONS
FINS
FLUID FLOW
FLUID MECHANICS
MATHEMATICAL MODELS
MECHANICS
ORIENTATION
PRESSURE GRADIENTS
SUBSONIC FLOW
TRANSONIC FLOW