... turbine expander, the rotating impeller-induced swirling flow and cavitation are essentially significant and intensive, which requests some in-depth work toward a thorough understanding flow physics and then effective attenuation. This study aims at effectively mitigating the swirling flow and cavitation...

...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...

.... computational 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...

... electric motors flow simulation Navier-Stokes equations optimisation pipe flow propulsion rotors stators swirling flow underwater vehicles Integrated electric motor/propulsor (IMP) technological development offers the potential to increase usable volume for undersea vehicles by locating...

... strongly influence the performance. 25 10 2009 09 06 2010 03 09 2010 03 09 2010 compressors impellers swirling flow centrifugal compressor volute inlet height total-to-total efficiency off-design analysis The impeller The experimental setup...

... hydraulic systems impellers iterative methods pumps rotational flow swirling flow viscosity Single-blade-impeller pumps are widely used for wastewater pumping applications. The single-blade-impeller allows for a large solids passage area, hence, facilitating the throughput...

... 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 are complex...

... 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...

... 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...

... hydrodynamics Navier-Stokes equations propulsion rotors stators swirling flow underwater vehicles vehicle dynamics viscosity 2010 American Society of Mechanical Engineers ...

... applications swirling flow turbulence 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 droplets results in better combustion quality parameters such as combustion efficiency...

...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...

..., 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 In the above bioreactors, the swirling flow...

...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...

... 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...

.... 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...

... 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...

...-measured tangential and axial velocity spectra. Although one of them agreed quite well with those in literature, the other was reported for the first time. One explanation was proposed. 11 05 2006 10 04 2007 swirling flow turbulence vortices The turbulent flow structure...

... , “ 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...

... the decay of the radial component. 05 04 2005 03 10 2006 jets nozzles confined flow swirling flow turbulence laser velocimetry flow visualisation drops two-phase flow fractals Sample convergence curve for average velocity Statistical accuracy, axial velocity...