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dc.contributor.advisorOlds, John R.
dc.contributor.authorWay, David Wesleyen_US
dc.date.accessioned2006-03-17T15:59:51Z
dc.date.available2006-03-17T15:59:51Z
dc.date.issued1998-07
dc.identifier.urihttp://hdl.handle.net/1853/8428
dc.description34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit Cleveland, OH, July 12 - 15, 1998.en_US
dc.description.abstractSCORES (SpaceCraft Object-oriented Rocket Engine Simulation) is an analysis tool being developed for conceptual-level spacecraft and launch vehicle design. Written in C++, SCORES provides rocket thrust and Isp for propulsion system trade studies. Common gateway interface scripts, written in Perl, provide an interface with the World Wide Web. The design parameters used in SCORES are mixture ratio, chamber pressure, throat area, and expansion ratio, making SCORES effective in multidisciplinary design optimization. This paper describes the current status in the development of SCORES, compares chemical equilibrium results against accepted equilibrium codes STANJAN and CEA, compares engine thrust and Isp predictions against available engine data for nine rocket engines, and discusses areas for future work. SCORES accurately predicts equilibrium mole fractions and adiabatic flame temperature over a wide range of operating conditions within 0.5%. Uncorrected errors of less than 10% within SCORES engine thrust and specific impulse calculations are within acceptable tolerances for use in conceptual-level design. Statistically correcting the performance predictions reduces these errors appreciably and provides the designer with additional information, the confidence interval of the calculations.
dc.format.extent2271109 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.relation.ispartofseriesSSDL ; AIAA 98-3227en_US
dc.subjectConceptual design
dc.subjectDesign analysis tools
dc.subjectPropulsion systems
dc.subjectPerformance prediction
dc.subjectEquilibrium calculations
dc.titleSCORES: Developing an Object-Oriented Rocket Propulsion Analysis Toolen_US
dc.typePaper


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