Comparison of the mixing efficiency of different injector configurations
作者： Tobias Winnemöller , Matthias Meinke , Wolfgang Schröder
DOI: 10.1016/J.COMPFLUID.2015.05.017
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摘要: Abstract The mixing efficiency of two injector configurations, one with a plane geometry and streamwise-ramp geometry, is compared. dense precursor gas tetraethoxysilane (TEOS – Si ( C 2 H 5 0 ) 4 premixed nitrogen ejected through circular holes in the base each into nozzle flow at co-flow Mach number Ma co - ≈ 0.66 temperature T 1200 K . Immediately downstream blunt trailing edge field accelerated to supersonic speed. process determined by multi-species large-eddy simulation (LES). analysis shows higher streamwise ramp configuration against geometry. Especially temporal homogeneity improved as result reduced vortex shedding base.
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