Thrust nozzle test facility at DLR Cologne

Abstract

The Aerospace Center 0 370 L'Enfant Promenade, SW 0 Washington, DC 20024-251 8 Amer~can lnstitwte of Aeronawtics an Downloaded by KUNGLIGA TEKNISKA HOGSKOLEN KTH on August 24, 2015 | http://arc.aiaa.org |Abstract DLR Cologne has built a thrust nozzle test facility for high temperature model tests on nozzles of hypersonic vihicles like ShJGER. The facility has been designed to simulate the aerothermodynamic flow field conditions within a ramjet at flight Mach numbers of about 3.5 to 7. The high temperature ramcombustor intake conditions will be generated by precombustors and the low pressure exhaust conditions will be provided by a diffuser working against atmospheric pressure. The total temperature up to 3000K will be achieved by hydrogen combustion. When fully operational, the facility will have the capability to measure flow parameters with laser diagnostics and thrust coefficients with a strain-gage balance. The connected pipe concept is described in detail and some statements to the test objects and to the accompanying fundamental research program are made.