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Instrumentation and Performance Analysis Plans for the HIFiRE Flight 2 ExperimentSupersonic combustion performance of a bi-component gaseous hydrocarbon fuel mixture is one of the primary aspects under investigation in the HIFiRE Flight 2 experiment. In-flight instrumentation and post-test analyses will be two key elements used to determine the combustion performance. Pre-flight computational fluid dynamics (CFD) analyses provide valuable information that can be used to optimize the placement of a constrained set of wall pressure instrumentation in the experiment. The simulations also allow pre-flight assessments of performance sensitivities leading to estimates of overall uncertainty in the determination of combustion efficiency. Based on the pre-flight CFD results, 128 wall pressure sensors have been located throughout the isolator/combustor flowpath to minimize the error in determining the wall pressure force at Mach 8 flight conditions. Also, sensitivity analyses show that mass capture and combustor exit stream thrust are the two primary contributors to uncertainty in combustion efficiency.
Document ID
20090041353
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Gruber, Mark (Air Force Research Lab. Wright-Patterson AFB, OH, United States)
Barhorst, Todd (Air Force Research Lab. Wright-Patterson AFB, OH, United States)
Jackson, Kevin (Air Force Research Lab. Wright-Patterson AFB, OH, United States)
Eklund, Dean (Air Force Research Lab. Wright-Patterson AFB, OH, United States)
Hass, Neal (NASA Langley Research Center Hampton, VA, United States)
Storch, Andrea M. (NASA Langley Research Center Hampton, VA, United States)
Liu, Jiwen (Taitech, Inc. Wright-Patterson AFB, OH, United States)
Date Acquired
August 24, 2013
Publication Date
August 3, 2009
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
LF99-9901
Meeting Information
Meeting: 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Location: Denver, CO
Country: United States
Start Date: August 3, 2009
End Date: August 5, 2009
Sponsors: Society of Automotive Engineers, Inc., American Inst. of Aeronautics and Astronautics, American Society for Electrical Engineers, American Society of Mechanical Engineers
Funding Number(s)
WBS: WBS 599489.02.07.07.03.12.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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