Advancement and Refinement of HyperSoar Modeling

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Description

This report discusses the topic of periodic cruise trajectories for hypersonic flight. An extensive review of previous work associated with periodic cruise trajectories for subsonic, supersonic and hypersonic flight is presented to provide the background for this investigation. The primary objective of this report is to discuss why periodic cruise trajectories lead to near fuel-optimal trajectories from a heuristic, mathematical and computational perspective with air breathing propulsion. Results to date indicate that periodic achieves greater fuel savings by exchanging kinetic and potential energy more efficiently. The vehicle attempts to chatter back and forth between where the vehicle wants to fly ... continued below

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182 Kilobytes pages

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Carter, P. H., II; Pines, D. J. & vonEggers Rudd, L. February 25, 2000.

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Description

This report discusses the topic of periodic cruise trajectories for hypersonic flight. An extensive review of previous work associated with periodic cruise trajectories for subsonic, supersonic and hypersonic flight is presented to provide the background for this investigation. The primary objective of this report is to discuss why periodic cruise trajectories lead to near fuel-optimal trajectories from a heuristic, mathematical and computational perspective with air breathing propulsion. Results to date indicate that periodic achieves greater fuel savings by exchanging kinetic and potential energy more efficiently. The vehicle attempts to chatter back and forth between where the vehicle wants to fly for optimum aerodynamic and propulsive performance. Results from computational simulations are inconclusive and require further work to define appropriate interfaces for aerodynamic and propulsion data decks for input into the POST software. The notional design of a vehicle to fly periodic hypersonic cruise trajectories was improved by including concepts for engine installation, flight controls and by including considerations for off-design performance. This notional design provides a better starting point for more serious and complete vehicle design studies.

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182 Kilobytes pages

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  • Other Information: PBD: 25 Feb 2000

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  • Report No.: UCRL-ID-137756
  • Grant Number: W-7405-Eng-48
  • DOI: 10.2172/793451 | External Link
  • Office of Scientific & Technical Information Report Number: 793451
  • Archival Resource Key: ark:/67531/metadc741325

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • February 25, 2000

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • May 5, 2016, 9:01 p.m.

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Carter, P. H., II; Pines, D. J. & vonEggers Rudd, L. Advancement and Refinement of HyperSoar Modeling, report, February 25, 2000; California. (digital.library.unt.edu/ark:/67531/metadc741325/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.