Future Aerospace Ground Test Facility Requirements for the Arnold Engineering Development Center (1992) / Chapter Skim
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EXECUTIVE SUMMARY
EXECUTIVE SUMMARY
Pages 1-10
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Created shortly after World War it, AEDC resulted from the recognition that the United States needed the basic developmental tools that would allow it to reach out to the horizons of technology in developing its modern military air systems. In the years since that time, significant test facility additions have been made that have kept AEDC one of the premier aerospace ground testing facilities in the world.
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AEDC should be strongly represented in those planning advises that involve advanced aerospace ground test facilities. The development tools include ground test facilities, computational fluid dynamics (CFD)
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Although the NASA Langley Research Center cryogenic National Transonic Facility is designed to match full-scale Reynolds number, the facility was not intended as a day-to-day developmental facility. The new European Transonic Wind Tunnel scheduled to become operational in 1993 will provide the higher Reynolds number capability with some improvement in productivity.
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In fonnu~ing a recommendafiwn for consideration by the APMC, the [RAT should consider the arrives presented by ANDY, other facilities that may be coming on line, and alternative development loots (other than ground Rehinge for obtaining the required higher-Reyno~s-number data for Air Force development programs. Low-Speed Configuration Development Tesiirlg As in the case of transonic cruise wing development, the technology of low-speed airplane design has advanced to the stage where the design validation for high-lift wing design, high angle-of-attack fighter maneuvering capability, and low-speed structural loads should be accomplished at Reynolds numbers representative of full-scale flight.
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Hypersonic Cruise and Transaimospheric Systems Programs involving hypersonic cruise or transatmospheric technology have requirements for developmental tools that are among the most difficult to define. The relative roles of various developmental tools (such as ground test facilities, CFD, flight testbeds, and flight research vehicles)
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In this regard, it is important that the LRPT develop a plan that defines the relative roles of the various developmental tools. Options for the ground test facility portion of the plan are discussed in Chapter 3.
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The second priority involves data prediction and analysis, data interpolation and extrapolation, and tasks requiring complex CFD representation of flow parameters. The committee believes that the advanced scientific computing enhancement upgrade is not adequate to properly handle these requirements.
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Additional productive use of AEDC facilities can be made by providing limited institutional funding for research in AEDC facilities by other government users such as NASA and the Wright Laboratories. AEDC is to be commended for working diligently on these issues during the last year.
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In order to accomplish significant changes in capability, upgrades are frequently associated with major new initiatives. For example, substantial upgrades typically involve expenditures of $50 minion or more, whereas the AEDC annual budget for generic improvements and modernization on a lesser scale is $3 million.
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The committee believes AEDC should make detailed cost estimates of the various facility options and improvements under consideration as part of the planning activities that have been recommended. This will represent an important input to the I~ong-Range Planning Team and provide Air Force management with information necessary to make implementation decisions.
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