2d and 3d Method of Characteristics for Nozzle Design

Applied Physics Laboratory

RTDC-TPS-48 I

Laurel MD 207236099

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2D and 3D Method of Characteristic Tools for
Complex Nozzle Development
Final Report

Tharen Rice
June 3 0,2003

Prepared under Grant No. NAG3-2460, “Design of Exhaust Nozzle for the RBCC- GTX
Concept,” with the NASA Glenn Research Center

THE JOHNS HOPKINS UNIVERSITY APPLIED PHYSICS LABORATORY
Johns Hopkins Road, Laurel, Maryland 20723-6099

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Applied PhytiCS Laboratory

RTDC-TPS-48 1

Laurel M D 207236(199

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Table of Contents

1 .0
Purpose ..................................................................................................................
2.0
Introduction............................................................................................................
3.0
2D Method of Characteristics Tool ........................................................................
2D MOC Nozzle Algorithm Overview ..............................................................
3.1
2D MOC Tool Inputs .......................................................................................
3.2
Nozzle Geometry Input ............................................................................
3.2.1
Nozzle Type Input....................................................................................
3.2.2
3.2.2.1 Perfect Nozzle ......................................................................................
3.2.2.2 Rao Nozzle ...........................................................................................
3.2.2.3 Set End Point Nozzles ..........................................................................
3.2.2.4 Cone/Wedge Nozzles ...........................................................................
Nozzle Design Parameters .......................................................................
3.2.3
3.2.4
Flow Properties ........................................................................................
Throat Geometry Input

References: 3. Anderson, J. D., Fundamentals of Aerodynamics, McGraw Hill Publishing Company, New York, New York, 1984. Waveriders,” AIM-87-0272, Jan. 1987. 12. Rao, G.V.R, “Exhaust Nozzle Contour for Optimum Thrust,” Marquadt Aircraft Co, Presented at the ARC Semi Annual Meeting, San Fransisco, CA, June 10-13, 1957. 1 (March 1999), Pages 78-94. (September 1996), Pages 362-371.