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Title Fluid Dynamical Characteristics of Pressure Drop of Air Flow in Two Kinds of Cylindrical Vortex Chambers for Control of Vortex Flow
Date 01.03.2005
Number 430
Abstract Fluid dynamical characteristics of vortex flow are applied to many technological processes. Especially, a cyclone dust collector for the dust collection, a vortex diode for the control of flow processes by vortex flow in the vortex chamber, a vortex type dryer and also a vortex type combustor are the well-known equipments to the industries. Concerning the control of vortex flow in the cylindrical vortex chamber, the fundamental characteristics of the velocity distributions which depended on the flow conditions of the primary and secondary inlet flows to the vortex chambers were reported in detail. Then in order to estimate the energy dissipation due to vortex flow, the fluid dynamical characteristics of the pressure drop for the two kinds of the vortex chambers which were distinguished as the co-rotating flow system abbreviated by a symbol of Co-R-F-S and the counter-rotating flow system abbreviated by a symbol of C-R-F-S are experimentally studied. The former flow system intended to promote the tangential velocity of vortex flow in the vortex chamber due to the mutual sum up of the angular momentum fluxes with the same spin directions from the inlet pipes 1 and 2 and the latter flow system intended to suppress the tangential velocity to the migration of the angular momentum fluxes with the clockwise and anti-clockwise spin directions. Therefore the pressure drops of the vortex flow for the two types of the vortex chambers showed the different characteristics deeply depended on the inlet velocity Vo1 in the inlet pipe 1 and the inlet velocity Vo2 in the inlet pipe 2. Then the correlation between the pressure drop and the mean inlet velocities in the inlet pipe 1 and pipe 2 and also the correlation between the coefficient of the pressure drop and Reynolds numbers for the inlet pipe 1 and inlet pipe 2 were discussed in detail.<br /><br /><a href="http://www.ipfdd.de/fileadmin/user_upload/vw/mitarbeiter/spickenheuer/Fluid_Dynamical.pdf">Article</a>
Publisher Journal of the College of Engineering Nihon University
Identifier
Citation Journal of the College of Engineering Nihon University 46 (2005) 19-36
DOI http://sciencelinks.jp/j-east/article/200509/000020050905A0323848.php
Authors Ogawa, A.; Winkler, A. R.; Oono, T.; Okabe, H.; Ooyagi, T.; Akiba, N.; Ogawa, K.; Oono, W.; Sinya, S.; Washizu, M.
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