NDLI: An investigation of vortex-induced aerodynamic characteristics of supersonic cruise configurations

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An investigation of vortex-induced aerodynamic characteristics of supersonic cruise configurations

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lan, C. E.
Copyright Year	1985
Description	The linear lifting surface theory which predicts the life in supersonic flow, even though the drag is usually underpredicted, is described. A method for calculating the nonlinear wave drag was developed to remedy this deficiency. The calculated sectional drag is modified by adding the difference between the exact two dimensional (2-D) and the linear 2-D wave drag at the calculated sectional lift coefficient. Improvement in the supersonic drag prediction is shown. The VORCAM code was modified for the FORTRAN 77 language and its input stream was rearranged. The Boeing code was adapted to the computer system. All CDC special features in the code are replaced with standard FORTRAN algorithms. It is suggested that because of the nonlinearity the solution appears to be nonunique crowding of two vortices, a mechanism of vortex asymmetry, is investigated.
File Size	963356
File Format	PDF
Language	English
Publisher Date	1985-01-28
Access Restriction	Open
Subject Keyword	Aerodynamics Supersonic Flow Atmospheric Circulation Lifting Bodies Wave Drag Programming Aerodynamic Coefficients Languages Two Dimensional Flow Uniqueness Theorem Computer Programs Fortran Algorithms Vortices Nonlinearity Aerodynamic Characteristics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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