NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Focused Experimental and Analytical Studies of the RBCC Rocket-EjectorThe rocket-ejector mode of a Rocket Based Combined Cycle Engine (RBCC) was studied through a joint experimental/analytical approach. A two-dimensional variable geometry rocket-ejector system with enhanced optical access was designed and fabricated for experimentation. The rocket-ejector system utilizes a single two-dimensional gaseous oxygen/gaseous hydrogen rocket as the ejector. To gain a systematic understanding of the rocket ejector's internal fluid mechanic/combustion phenomena, experiments were conducted with both direct-connect and sea-level static configurations for a range of rocket operating conditions Overall system performance was obtained through Global measurements of wall static pressure profiles, heat flux profiles and engine thrust, whereas detailed mixing and combustion information was obtained through Raman spectroscopy measurements of major species (gaseous oxygen, hydrogen. nitrogen and water vapor). These experimental efforts were complemented by Computational Fluid Dynamic (CFD) flowfield analyses.
Document ID
20000004513
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Lehman, M. (Pennsylvania State Univ. University Park, PA United States)
Pal, S. (Pennsylvania State Univ. University Park, PA United States)
Schwes, D. (Pennsylvania State Univ. University Park, PA United States)
Chen, J. D. (Pennsylvania State Univ. University Park, PA United States)
Santoro, R. J. (Pennsylvania State Univ. University Park, PA United States)
Date Acquired
September 7, 2013
Publication Date
October 18, 1999
Subject Category
Spacecraft Propulsion And Power
Meeting Information
Meeting: CS/APS/PSHS Joint Meeting
Location: Cocoa Beach, FL
Country: United States
Start Date: October 18, 1999
End Date: October 22, 1999
Sponsors: Department of the Air Force, Department of the Navy, NASA Headquarters, Department of the Army
Funding Number(s)
PROJECT: RTOP 708-72-70
CONTRACT_GRANT: NAS8-40890
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available