Measurement of the Velocity Distribution in a Hydrocyclone

The flow velocioy inside the hydrocyclone is measured by LDV (Laser Doppler Velocimeter) for the conventional hydrocyclone and the cyclone with an inner perforated cylinder. Two types of the perforation are used, i.e., low porosity and high porosity cylinders. It is found that the tangential velocit...

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Bibliographic Details
Published inNihon Kikai Gakkai rombunshuu. B hen Vol. 70; no. 695; pp. 1738 - 1745
Main Authors TANIWAKI, Mitsuhiro, YAMAMOTO, Kyoji, HATADA, Takahiro, MITANI, Hiroyuki
Format Journal Article
LanguageJapanese
English
Published The Japan Society of Mechanical Engineers 2004
Subjects
Hydrocyclone
Internal Perforated Cylinder
LDV
Velocity measurement
Vortex
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Summary:The flow velocioy inside the hydrocyclone is measured by LDV (Laser Doppler Velocimeter) for the conventional hydrocyclone and the cyclone with an inner perforated cylinder. Two types of the perforation are used, i.e., low porosity and high porosity cylinders. It is found that the tangential velocity in the hydrocyclone with the perforated inner cylinder behaves like a forced vortex near the central part of the hydrocyclone and like quasi-free vortex outside the forced vortex. The flow inside the conventional hydrocyclone has a high upstream and a large tangential velocity in the region next to the inner air core and the forced and quasi-free vortices follow outside this region.
ISSN:0387-5016
1884-8346
DOI:10.1299/kikaib.70.1738