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2011-2012 Dryden Center Innovation Fund End of the Year Report: Altitude-Compensating Rocket Nozzles
NTRS Full-Text: Click to View  [PDF Size: 582 KB]
Author and Affiliation:
Jones, Daniel S.(NASA Dryden Flight Research Center, Edwards, CA, United States);
Bui, Trong T.(NASA Dryden Flight Research Center, Edwards, CA, United States)
Abstract: This report highlights one of the many successful projects at the NASA Dryden Flight Research Center that was approved for FY12 funding under the Center Innovation Fund. This project was focused on advancing the technology readiness level of one specific type of altitude-compensating nozzle: the dual-bell rocket nozzle. When considering a rocket's performance over its entire integrated trajectory, the dual-bell nozzle has been predicted to achieve a higher total impulse over the conventional bell nozzle, which is expected to result in a greater capability of payload mass to low-Earth orbit. Although the dual-bell rocket nozzle has been thoroughly studied for several decades, this nozzle has still not been adequately tested in a relevant flight-like environment. This report provides highlights and top-level details on the FY12 feasibility effort to advance this promising technology through flight test, a collaborative effort which leverages NASA Marshall's dual-bell nozzle research and development with Dryden's expertise in propulsion-focused flight testing. To accomplish this goal, the NASA F-15B is proposed as the testbed for the initial flight-test campaign to advance this greatly needed capability.
Publication Date: Oct 06, 2012
Document ID:
20130009901
(Acquired Feb 20, 2013)
Subject Category: AIRCRAFT PROPULSION AND POWER
Report/Patent Number: DFRC-E-DAA-TN5973
Coverage: Final Report; 2011-2012
Document Type: Technical Report
Financial Sponsor: NASA Dryden Flight Research Center; Edwards, CA, United States
Organization Source: NASA Dryden Flight Research Center; Edwards, CA, United States
Description: 11p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: COMPUTATIONAL FLUID DYNAMICS; CONICAL NOZZLES; F-15 AIRCRAFT; FEASIBILITY ANALYSIS; FLIGHT ALTITUDE; FLIGHT TESTS; LOW EARTH ORBITS; NOZZLE DESIGN; ROCKET NOZZLES; THRUST DISTRIBUTION
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