Film Cooling in Dual Bell Nozzles

Details Film Cooling in Dual Bell Nozzles Film Cooling in Dual Bell Nozzles

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.563..459n&link_type=abstract

Proceedings of the Fifth European Symposium on Aerothermodynamics for Space Vehicles (ESA SP-563). 8-11 November 2004, Cologne,

Other

Scientific paper

Dual bell nozzle permits two different operating modes, which provide higher performance than conventional bell nozzles, when applied to rocket engines operating in a varying ambient pressure environment. The configuration of a dual bell nozzle in the cryogenic engine of the Ariane 5 main stage, could be based on the injection of the turbine exhaust gases in the nozzle, to increase the thrust and to cool the wall. The effectiveness of the film cooling is evaluated by a parametric study and in particular, the effect of the secondary gas injection on the overall flow behavior is studied because of its possible effect on one of the most critical aspects of dual bell nozzles, the side loads, that may occur during the separated flow operations and during the transition between the two operating modes. Key words: dual bell; film cooling; side load.

Affiliated with

Also associated with

No associations

Rating

Film Cooling in Dual Bell Nozzles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Film Cooling in Dual Bell Nozzles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film Cooling in Dual Bell Nozzles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1358603