Improved Image Correction Technique for Visualization of the Air/Fuel Mixing in a Ducted Rocket Combustor

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Authors
  1. Jeffries, M.A.
  2. Stowe, R.A.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
The Defence Research Establishment Valcartier (DREV) in Canada and the TNO Prins Maurits Laboratory (TNO-PML) in the Netherlands have undertaken a collaborative activity known as the Integral Rocket Ramjet Demonstration Program (IRRDP) to demonstrate several of the key technologies of an airbreathing propulsion unit for a medium-range air-launched missile. An essential component of the airbreathing propulsion system is the ducted rocket combustor and, as part of its development, extensive visualization of the simulated air/fuel mixing has been done using plexiglass models within a water tunnel. Images of simulated fuel concentration were used to validate computational fluid dynamic (CFD) modelling of the same combustor, but unfortunately only qualitative comparisons were possible because of effects from several optical phenomena. Improved optics and image correction techniques to account for the various optical phenomena have yielded more quantitative results of simulated fuel concentration within the combustor. Comparisons of time-averaged, corrected images to the CFD results have been very encouraging for some of the configuraitons studied.
Keywords
Airbreathing engines;Ducted rockets;Combustors;Ducted rocket engines;Air breathing propulsion;Image correction
Report Number
DREV-TM-1999-220 — Technical Memorandum
Date of publication
01 Mar 2000
Number of Pages
35
DSTKIM No
CA001564
CANDIS No
513411
Format(s):
Hardcopy;Document Image stored on Optical Disk

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