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

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.
Authors:
Publication Date:
OSTI Identifier:
6501712
Report Number(s):
SAND-80-2380
DOE Contract Number:
AC04-76DP00789
Resource Type:
Technical Report
Research Org:
Sandia National Labs., Albuquerque, NM (USA)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; FINS; AERODYNAMICS; SUBSONIC FLOW; COMPUTER CALCULATIONS; TRANSONIC FLOW; MATHEMATICAL MODELS; ORIENTATION; PRESSURE GRADIENTS; FLUID FLOW; FLUID MECHANICS; MECHANICS 420400* -- Engineering-- Heat Transfer & Fluid Flow