Vortex Features in a Half-ducted Axial Fan with Large Bellmouth (Effect of Tip Clearance)
نویسندگان
چکیده
منابع مشابه
effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow
چکیده ندارد.
15 صفحه اولVortex Shedding Mechanisms in Relation to Tip Clearance Flows and Losses in Axial Fans
SUMMARY This paper outlines the importance of tip leakage flows in axial fans as a source of loss and relates the dimensionless loss analytically to a range of dimensionless parameters by application of a jet loss theory due to Rains. Improved vortex shedding models are also presented. From these models theoretical predictions of lift coefficient reduction are compared with published experiment...
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Focusing on the tip leakage vortex cavitation, experimental and numerical studies were carried out as the first step of the investigation of cavitations in tip leakage flow. For a single hydrofoil with a tip clearance, tip leakage vortex cavitations were observed for various cavitation numbers and angles of attack. To simulate the tip leakage vortex cavitation, a simple calculation of 2-D unste...
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ژورنال
عنوان ژورنال: International Journal of Fluid Machinery and Systems
سال: 2011
ISSN: 1882-9554
DOI: 10.5293/ijfms.2011.4.3.307