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Aerothermo-Structural Analysis of Low Cost Composite Nozzle/Inlet ComponentsThis research is a cooperative effort among the Turbomachinery and Propulsion Division of NASA Glenn, CCMR of NC A&T State University, and the Tuskegee University. The NC A&T is the lead center and Tuskegee University is the participating institution. Objectives of the research were to develop an integrated aerodynamic, thermal and structural analysis code for design of aircraft engine components, such as, nozzles and inlets made of textile composites; conduct design studies on typical inlets for hypersonic transportation vehicles and setup standards test examples and finally manufacture a scaled down composite inlet. These objectives are accomplished through the following seven tasks: (1) identify the relevant public domain codes for all three types of analysis; (2) evaluate the codes for the accuracy of results and computational efficiency; (3) develop aero-thermal and thermal structural mapping algorithms; (4) integrate all the codes into one single code; (5) write a graphical user interface to improve the user friendliness of the code; (6) conduct test studies for rocket based combined-cycle engine inlet; and finally (7) fabricate a demonstration inlet model using textile preform composites. Tasks one, two and six are being pursued. Selected and evaluated NPARC for flow field analysis, CSTEM for in-depth thermal analysis of inlets and nozzles and FRAC3D for stress analysis. These codes have been independently verified for accuracy and performance. In addition, graphical user interface based on micromechanics analysis for laminated as well as textile composites was developed. Demonstration of this code will be made at the conference. A rocket based combined cycle engine was selected for test studies. Flow field analysis of various inlet geometries were studied. Integration of codes is being continued. The codes developed are being applied to a candidate example of trailblazer engine proposed for space transportation. A successful development of the code will provide a simpler, faster and user-friendly tool for conducting design studies of aircraft and spacecraft engines, applicable in high speed civil transport and space missions.
Document ID
19990111471
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Shivakumar, Kuwigai
(North Carolina Agricultural and Technical State Univ. Greensboro, NC United States)
Challa, Preeli
(North Carolina Agricultural and Technical State Univ. Greensboro, NC United States)
Sree, Dave
(Tuskegee Inst. AL United States)
Reddy, D.
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
August 19, 2013
Publication Date
August 1, 1999
Publication Information
Publication: HBCUs/OMUs Research Conference Agenda and Abstracts
Subject Category
Composite Materials
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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