Numerical Analysis of Gas Dynamic Efficiency of Short Diffusers with Internal Guiding Blades

Abstract

Gas dynamic efficiency of short diffusers in life support system filters is analyzed. Relevance of using such diffusers is discussed, as well as ways to increase their efficiency by decreasing gas dynamic losses while complying with velocity criteria. A method of calculating the flow channel of the short diffuser is developed and verified, and unique conditions for the calculation are stated. Calculation results for various short diffuser designs are presented, and the correlation between the designs and the efficiency of short diffusers is analyzed.