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Keywords: swirling flow
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Journal Articles
Article Type: Fundamental Issues And Canonical Flows
J. Fluids Eng. May 2012, 134(5): 051211.
Published Online: May 22, 2012
...Suwimon Saneewong Na Ayuttaya; Chainarong Chaktranond; Phadungsak Rattanadecho; Thatchapong Kreewatcharin This study presents a numerical analysis of electric fields distribution, characteristics of swirling flow and effect of inlet velocity (u 0 ) from two ground arrangements, i.e., wire-to-wire...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. August 2011, 133(8): 081105.
Published Online: September 2, 2011
... fluid dynamics design engineering flow simulation flow visualisation numerical analysis pipe flow propulsion swirling flow turbulence underwater vehicles Propulsor design methods utilize CFD to develop initial propulsor configurations and predict the full-scale open-water performance...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. April 2011, 133(4): 041102.
Published Online: May 12, 2011
Journal Articles
Article Type: Research Papers
J. Fluids Eng. September 2010, 132(9): 091101.
Published Online: September 3, 2010
... with a mean cross-sectional radius that is the same as the radius of the volute inlet is used in this study. centrifugal compressor volute inlet height total-to-total efficiency off-design analysis compressors impellers swirling flow 25 10 2009 09 06 2010 03 09 2010 03...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. June 2010, 132(6): 061103.
Published Online: June 15, 2010
... pumps rotational flow swirling flow viscosity Numerical simulation was proposed as the preferred approach for analyzing the flowfield of the single blade impeller pump and to assist with the volute design investigation process. The use of CFD provides clear advantages in investigations...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. June 2010, 132(6): 061102.
Published Online: June 11, 2010
... confined flow swirling flow rotor-stator hot-wire anemometry turbulent flow analytical model In internal gas turbine cooling systems, the disks usually rotate close to a stationary casing or in front of other corotating or contrarotating disks. Of course, these actual geometries...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. May 2010, 132(5): 051107.
Published Online: May 13, 2010
... the late compression. Therefore, it can be assumed that CMCV enhances the fuel-air mixing more than the flame speed. 23 02 2009 11 04 2010 13 05 2010 13 05 2010 confined flow flow control flow measurement internal combustion engines swirling flow turbulence...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. May 2010, 132(5): 051108.
Published Online: May 13, 2010
... with and without the rotation of the disk, it was found that the normal moment without the disk rotation did not have the effect to encourage the precession motion. Thus, the swirl flow due to disk rotation was found to be responsible for the encouragement of the precession motion. 02 08 2009 07 04 2010...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. February 2010, 132(2): 021101.
Published Online: February 3, 2010
... flows hydrodynamics Navier-Stokes equations propulsion rotors stators swirling flow underwater vehicles vehicle dynamics viscosity maneuvering propulsor hydrodynamics experimental fluid dynamics computational fluid dynamics Standard navy torpedoes and unmanned undersea...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. January 2010, 132(1): 011303.
Published Online: January 12, 2010
... applications swirling flow turbulence gas-centered coaxial atomizers liquid sheets jet/sheet breakup sprays It has always been the endeavor of all engineers working in spray combustion to transform bulk liquid (fuel and/or oxidizer) into tiny droplets. A decrease in the size of liquid...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. May 2009, 131(5): 051104.
Published Online: April 13, 2009
...A. Ahmadi The sensitivity to poor conditioned and swirling flow of flow measurements using an orifice plate are subjects of concern to flowmeter users and manufacturers. Measurements of mass flow rate under different conditions and different Reynolds numbers were used to establish a change...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. November 2008, 130(11): 111101.
Published Online: September 19, 2008
..., angular momentum, and azimuthal vorticity are presented and compared with those of whole bottom-wall rotation. 06 06 2007 03 07 2008 19 09 2008 confined flow vortices vortex breakdown swirling flow recirculation flow Swirling flow inside a cylindrical chamber...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. August 2008, 130(8): 081502.
Published Online: July 23, 2008
...Shinji Tamano; Motoyuki Itoh; Mitsunori Yoshida; Kazuhiko Yokota In this study, confined swirling flows of an aqueous surfactant solution due to a rotating disk in a cylindrical casing were investigated using a sectional flow visualization technique and a two-component laser Doppler velocimetry...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. May 2008, 130(5): 051401.
Published Online: April 29, 2008
... scales in the formulation of the eddy viscosity. The filtered k - ω model is implemented in an in-house computational fluid dynamics (CFD) code, and numerical simulations have been made of strongly swirling flow through a sudden expansion. The new model surpasses the original model in predicting unsteady...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. April 2008, 130(4): 041106.
Published Online: April 14, 2008
.... It is assumed that the cavity volume at the runner exit is a function of the pressure at the vortex core evaluated from the instantaneous local pressure at the runner exit and an additional pressure decrease due to the centrifugal force on the swirling flow. It was found that the diffuser effect of the draft...
Journal Articles
Article Type: Research Papers
J. Fluids Eng. January 2008, 130(1): 011203.
Published Online: January 16, 2008
... to the later variation or vice versa has been taken to characterize destabilization and relaminarization, respectively. The predicted azimuthal velocity component was found to be reasonably accurate near the wall and not so encouraging in the core region of the swirling flow. The recirculation bubble generated...
Journal Articles
Article Type: Technical Papers
J. Fluids Eng. September 2007, 129(9): 1179–1185.
Published Online: April 10, 2007
... distribution of LDA-measured V ¯ z . A close examination of the vectors suggests that the axes of both the upward and downward swirl flows in the cylindrical body of the cyclone are tilted and shifted away from the geometrical axis of the cyclone chamber. Using LDA to measure the flow velocities...
Journal Articles
Article Type: Technical Papers
J. Fluids Eng. September 2007, 129(9): 1228–1240.
Published Online: April 4, 2007
... , “ Optimum Design of Straight Walled Diffuser ,” J. Basic Eng. 0021-9223 , 81 , pp. 321 – 329 . McDonald , A. T. , Fox , R. W. , and van Dewoestine , R. V. , 1971 , “ Effects of Swirling Flow on Pressure Recovery in Conical Diffusers ,” AIAA J. 0001-1452 , 9 , pp. 2014 – 2018...
Journal Articles
Article Type: Technical Papers
J. Fluids Eng. May 2007, 129(5): 541–550.
Published Online: October 3, 2006
... . 05 04 2005 03 10 2006 jets nozzles confined flow swirling flow turbulence laser velocimetry flow visualisation drops two-phase flow fractals The key to reducing combustion nitrogen oxides ( N O x ) and carbon monoxide (CO) emissions is fast and thorough...
Journal Articles
Article Type: Technical Papers
J. Fluids Eng. February 2007, 129(2): 209–217.
Published Online: August 7, 2006
...Michel J. Cervantes; L. Håkan Gustavsson A method to estimate the radial velocity in swirling flows from experimental values of the axial and tangential velocities is presented. The study is motivated by the experimental difficulties to obtain this component in a draft tube model as evidenced...