Sökning: "relative volume flux"

Hittade 2 uppsatser innehållade orden relative volume flux.

1. 1. Optical Analysis of the Hydrogen Cooling Film in High Pressure Combustion Chambers

   Master-uppsats, Luleå tekniska universitet/Rymdteknik

   Författare :Fabian Weber; [2019]
   Nyckelord :optical; analysis; hydrogen; h2; cooling; film; high; pressure; combustion; chambers; rocket; engine; thrust; experimental; oh*; shadowgraphy; flame; emission; lox; liquid; bipropellant; cryogenic; efficiency; heat; flux;

   Sammanfattning : For performance optimisation of modern liquid cryogenic bipropellant rocket combustion chambers, one component which plays an important role in reducing the wall side heat flux, is the behaviour of the cooling film. At the Institute of Space Propulsion of the German Aerospace Center (DLR) in Lampoldshausen, hot test runs have been performed using the experimental combustion chamber BKM, to investigate the wall side heat flux which is -- among other factors -- dependent on cooling film properties. LÄS MER

3. 2. Experimental and numerical study of entrainment phenomena in an impinging jet

   Magister-uppsats, Akademin för teknik och miljö

   Författare :Gottfried Weinberger; Yakob Yemane; [2010]
   Nyckelord :Impinging jet; ultrasonic anemometer; CFD; entrainment angle; jet angle; jet contour; relative volume flux; spreading rate;

   Sammanfattning : This thesis is primarily about the mapping and analyze of the phenomenon of an impinging jet by experimental measurements and numerical simulations by CFD. The mapping shows the characteristics of velocity in and around the impinging jet with different conditions. LÄS MER