Modellduese HYTEX: Optimierung des Sperrfluidsystems. Auswertung von Vorversuchen sowie erster Heissgastests fuer Ma = 1.2

Abstract

Within the framework of the Hypersonic Technology Program Phase 1b, a hydrogen cooled square model nozzle was developed, manufactured and successfully tested on the test stand. In the process, the hot gas tests indicated higher barrier fluid flow rates than expected. The causes were additional, previously unknown leakage surfaces. With the objective of optimizing the barrier fluid system, i.e. to reduce barrier liquid flow, a series of measures based on existing design conditions is presented and assessed with respect to the assembly effort and economy effect involved. The results obtained so far are used to derive proposals with respect to the barrier fluid system for a new nozzle project in Phase 1c. (orig.)Available from TIB Hannover: D.Dt.F.QN1(11,14) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman