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Keywords: Vortices
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Journal Articles
Article Type: Research-Article
J. Fluids Eng. May 2020, 142(5): 051504.
Paper No: FE-19-1744
Published Online: February 4, 2020
...Jiajia Li; Pablo M. Carrica We propose a method to visualize vortex cores based on manipulation of the pressure field produced by isolated vortices in incompressible flow. Under ideal conditions, the function D = 2 | ∇ p | / ∇ 2 p yields an approximate distance to vortex centerlines. As opposed...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021104.
Paper No: FE-17-1296
Published Online: July 10, 2018
... Computational fluid dynamics Duct Hydrodynamics Industrial flows Mixing Vortices Channel Pipe flows Although heat exchangers are usually operated in the turbulent regime, there are multiple applications that require good mixing and heat transfer at very low Reynolds numbers [ 1 , 2 ]. At low...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021401.
Paper No: FE-17-1756
Published Online: June 29, 2018
... Turbulence Turbulence modeling Unsteady flows Vortices Channel Pipe flows Steam generation is one of the most important features in a power plant, regardless of its power source. Typically, straight or U-shaped tubes are used to exchange heat from the primary coolant to the secondary fluid...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021102.
Paper No: FE-17-1726
Published Online: June 29, 2018
...; distribution is unlimited. Use license CC-BY 4.0. 09 11 2017 18 05 2018 Drag Experimental techniques Flows in biological systems Fluid-structure interaction Hydrodynamics Measurement techniques Naval hydrodynamics Unsteady flows Vortices Wakes Fluid mechanics...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. February 2019, 141(2): 021103.
Paper No: FE-18-1030
Published Online: June 29, 2018
... is 163.93 Hz, and the cavitation shedding frequency at the short side is 306.67 Hz, which is about twice the value of the former. The filtered vorticity transport equation is employed to investigate the cavitation–vortex–turbulence interaction. Results indicate that vortex stretching is the major promoter...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011205.
Paper No: FE-17-1612
Published Online: June 29, 2018
.... Assoc. Editor: Sergio Pirozzoli. 26 09 2017 28 05 2018 Boundary layers Computational fluid dynamics RANS simulations Rotating fluids Turbulence Turbulence modeling Unsteady flows Vortices Wakes Boundary layer flows over three-dimensional (3D) curved bodies...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011106.
Paper No: FE-17-1562
Published Online: June 29, 2018
...; published online June 29, 2018. Assoc. Editor: Bart van Esch. 07 09 2017 01 06 2018 Cavitation Jets LES Multiphase flows Vortices Two-stage electrohydraulic servovalves play important roles in most modern hydraulic servocontrol systems for flight wing controls, manufacturing...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011203.
Paper No: FE-17-1792
Published Online: June 27, 2018
... as the distribution of the tangential velocity on different axial positions, have been specifically captured and analyzed. The “strake,” “claw,” and “ivory” vortices have been newly found and defined at the initial evolution stage, and they subsequently begin to harshly wind and rotate with the primary vortex. A flow...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011101.
Paper No: FE-18-1014
Published Online: June 27, 2018
... Microfluidics Mixing Multiphase flows Vortices Wakes Hydrodynamic cavitation, an extensively studied phenomenon at conventional scales, which burdens the operability and performance of hydraulics machines, can occur in microdomain and can adversely affect micromachines functionality [ 1 – 8...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. January 2019, 141(1): 011102.
Paper No: FE-18-1019
Published Online: June 27, 2018
... configuration. Particle image velocimetry (PIV) measurements of the constructive interference cases show strong synchronized vorticity shedding in all cavities. Each cavity contribution to the total aeroacoustic source is then examined by means of Howe's analogy, and the percentage contribution of each cavity...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111105.
Paper No: FE-17-1684
Published Online: June 4, 2018
...Sabine Bonitz; Lars Larsson; Lennart Löfdahl; Simone Sebben The flow around passenger cars is characterized by many different separation structures, typically leading to vortices and areas of reversed flow. The flow phenomena in these patches show a strong interaction and the evolution of flow...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111401.
Paper No: FE-17-1011
Published Online: May 28, 2018
... with strong shed vortices. 1 Corresponding author. Contributed by the Fluids Engineering Division of ASME for publication in the J OURNAL OF F LUIDS E NGINEERING . Manuscript received January 4, 2017; final manuscript received April 3, 2018; published online May 28, 2018. Assoc. Editor: Samuel...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111104.
Paper No: FE-17-1712
Published Online: May 28, 2018
... with rotating stall in SNL conditions. The results offer evidence that the rotating stall is in fact associated with an unstable vorticity distribution not associated with the runner blades themselves. 1 Corresponding author. Contributed by the Fluids Engineering Division of ASME for publication...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. November 2018, 140(11): 111202.
Paper No: FE-18-1007
Published Online: May 18, 2018
... NGINEERING . Manuscript received January 3, 2018; final manuscript received April 12, 2018; published online May 18, 2018. Assoc. Editor: Devesh Ranjan. 03 01 2018 12 04 2018 Jets Mixing PIV Turbulence Vortices Turbulent jets have diverse applications in mechanical...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. September 2018, 140(9): 091201.
Paper No: FE-17-1632
Published Online: April 19, 2018
... Division of ASME for publication in the J OURNAL OF F LUIDS E NGINEERING . Manuscript received October 2, 2017; final manuscript received February 21, 2018; published online April 19, 2018. Assoc. Editor: Devesh Ranjan. 02 10 2017 21 02 2018 Boundary layers Jets PIV Vortices...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. August 2018, 140(8): 081106.
Paper No: FE-17-1493
Published Online: April 10, 2018
... of this overflow rinsing methodology is that some of the processing fluid stagnates due to the generated vortices in the regions between the side and middle lifters which entrap some of the flushed particles that further adhere and deteriorate the surface of the wafers. In this work, the hydrodynamics of the flow...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061104.
Paper No: FE-17-1384
Published Online: March 13, 2018
... dynamics Fluid-structure interaction Hydrodynamics LES Vortices Wind and tidal turbines work under highly turbulent conditions and are subjected to a large range of velocities and turbulence intensities compromising their survivability, specifically from a structural integrity and a service...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061202.
Paper No: FE-17-1448
Published Online: February 6, 2018
..., 2018. Assoc. Editor: Riccardo Mereu. 25 07 2017 02 01 2018 Free surface flows Lift Vortices Wakes Waves Flow past a circular cylinder close to a free surface has been studied in many applications of pipelines, offshore structures, and tidal power plants. The existence...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051102.
Paper No: FE-17-1223
Published Online: January 9, 2018
...  = vorticity (1/s) ω * = dimensionless vorticity ( b 0 ω / U s 0 ) The authors would like to thank Mr. Koji Okuda of Software Cradle Co., Ltd. for his help with the numerical simulation and Mr. Hiroaki Terakado of Kogakuin University for his help in conducting...
Journal Articles
Article Type: Research-Article
J. Fluids Eng. May 2018, 140(5): 051201.
Paper No: FE-17-1414
Published Online: December 26, 2017
... studies depict the flow physics at each section along with the study of helicity at the exit of inlet pipe to determine the recirculation effects. It is observed that the vortices associated with the motion of the particles are moved toward the surfaces and are more intense than the mean flow. The trends...