ISSN:
0961-5539
Source:
Emerald Fulltext Archive Database 1994-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this paper, the performance simulation of a vortex controlled diffuser (VCD) has been carried out in low Reynolds number regime. The two-dimensional steady differential equations for conservation of mass and momentum has been solved for the Reynolds number ranging from 20 to 100, aspect ratio for 2 and 4, and bleed fraction for 2 per cent, 5 per cent and 10 per cent. The effect of each variable on the diffuser efficiency and the stagnation pressure has been studied in detail. From the study, it has been revealed that when the bleed is incorporated, the VCD behaves in a completely different manner from that of a sudden expansion as far as the variation of total pressure along the diffuser is concerned. For a given Reynolds number and aspect ratio, the diffuser efficiency has been noted to be increasing with increase in bleed fraction. VCD with an area ratio of around two has been found to be most suitable. The top corner has been noted to be the most desirable location of the bleed slot for the best performance of the VCD for the considered Reynolds number regime.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1108/09615530210422884
Permalink