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Keywords: flow instability
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2024, 146(1): 011302.
Paper No: FE-23-1158
Published Online: October 11, 2023
... 04 2023 09 08 2023 11 10 2023 Giesekus model viscoelastic fluid rotating cylinder shear-thinning flow instability vortex dynamics The flow past a rotating cylinder has been of interest both theoretically and experimentally due to various reasons, such as boundary layer...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2022, 144(5): 051202.
Paper No: FE-21-1278
Published Online: January 12, 2022
...Junyu Tao; Zhe Lin; Guang Zhang; Jingpan Su; Zuchao Zhu This research took the DN50 butterfly valve as the research object and studied the flow situation of butterfly valves with different shafts. The resistance characteristics, flow state, characteristics, and flow instability of butterfly valves...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2021, 143(6): 061207.
Paper No: FE-20-1462
Published Online: March 4, 2021
... for the blade tip with surface roughness. This positive alteration in the tip leakage flow structure led to the improved performance for the blade tip with surface roughness. e-mail:  pramod.salunkhe@manipal.edu 23 07 2020 18 01 2021 04 03 2021 axial compressor flow instability...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. December 2011, 133(12): 121101.
Published Online: December 19, 2011
... 19 12 2011 19 12 2011 blades cavitation flow instability pumps rotors Rotordynamic forces, together with flow instabilities generated or not by cavitation, are one of the universally recognized and most dangerous sources of vibrations in turbomachines. These forces can...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. November 2011, 133(11): 111303.
Published Online: November 11, 2011
..., the characteristic curve that expresses the head coefficient of the pump as a function of its flow coefficient is still the same in pumps of different scales but in geometrical similarity and in fully developed turbulent flow conditions. bubbles cavitation flow instability pumps rockets two-phase flow...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. November 2011, 133(11): 111301.
Published Online: October 27, 2011
... to a modest increase in the average vortex core radius, which was discernable in the measured pressure needed for developed cavitation. 24 12 2010 07 09 2011 27 10 2011 27 10 2011 cavitation flow instability flow visualisation non-Newtonian flow polymer solutions pressure...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. November 2011, 133(11): 111102.
Published Online: October 24, 2011
... 24 10 2011 blades compressible flow confined flow flow instability flow visualisation impellers nozzles rotors shear turbulence stratified flow supersonic flow Pressure exchange is a phenomenon of mechanical work extraction and energy transfer by fluid dynamic means. Moving...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. November 2011, 133(11): 111101.
Published Online: October 24, 2011
... the transient process. Simulation results were also compared and validated using published data. 24 01 2011 15 09 2011 24 10 2011 24 10 2011 air computational fluid dynamics flow instability flow simulation fluctuations impellers mesh generation pipe flow pumps reservoirs...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. October 2011, 133(10): 101102.
Published Online: October 5, 2011
... operation. 30 11 2010 09 09 2011 05 10 2011 05 10 2011 cavitation flow instability impellers pumps rockets rotational flow rotors Rotordynamic forces, together with flow instabilities generated or not by cavitation, are one of the universally recognized and most...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Fluids Eng. October 2011, 133(10): 104501.
Published Online: September 27, 2011
... possesses an increased core pressure as well as a reduced level of turbulent energy. 01 06 2011 24 08 2011 27 09 2011 27 09 2011 chaos flow instability flow simulation non-Newtonian flow numerical analysis polymer melts shear turbulence stagnation flow vortices wakes...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. October 2011, 133(10): 101302.
Published Online: September 26, 2011
... amplitudes graphs. The results are discussed in the context of potential oscillations and coupling mechanisms including the effect of the precessing vortex core (PVC), recirculation and shear flow instabilities. References 1 Gupta , A. K. , Lilley , D. J. , and Syred , N. , 1984...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. August 2011, 133(8): 081102.
Published Online: August 16, 2011
...Andreas Lucius; Gunther Brenner Flow instabilities like rotating stall can lead to severe vibrations in turbomachines if the eigenfrequency of the rotor is equal to the stall frequency. The goal of the present work is to shed some light on the origin of the rotating stall phenomenon...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. August 2011, 133(8): 081101.
Published Online: August 16, 2011
..., with the resulting Strouhal numbers of about 0.19 matching that expected for low blockage ratios at the corresponding Reynolds number. Blockage effects on the shear layer instability frequency are also successfully mitigated by streamlining the walls. aerodynamics flow instability shapes (structures...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. July 2011, 133(7): 071103.
Published Online: July 22, 2011
... structures flow instability shear flow Young's modulus Many engineering problems are multidisciplinary in nature and in the past they could not be solved numerically due to our limited computational resources. However, in the last two decades we experienced an unparalleled computer revolution...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. July 2011, 133(7): 071201.
Published Online: July 5, 2011
... flow instability pipe flow viscosity The dynamics of fluid flows with temperature-dependent properties have been the subject of numerous experimental, theoretical, and numerical studies due to their relevance to practical applications; these include lubrication, tribology, food processing...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. July 2011, 133(7): 071102.
Published Online: July 5, 2011
... , Hydrodynamics of Pumps , Concepts ETI, Inc., USA and Oxford University Press , England . 23 Tsujimoto Y. , Kamijo K. , Brennen C. E. , 2001 , “ Unified Treatment of Flow Instabilities ,” J. Propul. Power , 17 ( 3 ), pp. 636 – 643 . 10.2514/2.5790 24 Lohrberg H...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. June 2011, 133(6): 061301.
Published Online: June 15, 2011
... cavitating inducer rotating cavitation surge mode oscillation acoustic resonance blades cavitation flow instability fluid oscillations rotational flow synchronisation thermodynamics 06 11 2010 13 04 2011 15 06 2011 15 06 2011 Figure 13 shows the propagating...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Fluids Eng. May 2011, 133(5): 054501.
Published Online: June 7, 2011
... 2010 14 04 2011 07 06 2011 07 06 2011 flow control flow instability flow visualisation turbulence two-phase flow mean flow asymmetry bistability unstable double backward facing step Buildings as well as vehicles on ground and sea are often bluff bodies...
Topics: Flow (Dynamics)
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. May 2011, 133(5): 051202.
Published Online: June 2, 2011
... 02 06 2011 anemometry boundary layer turbulence drag reduction external flows flow control flow instability flow separation flow visualisation pressure measurement rods (structures) vibrations vortices wakes As a flow passes a square cylinder, complex flow phenomena...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. April 2011, 133(4): 041101.
Published Online: May 11, 2011
... passages. This stationary vortex formation is associated with a total pressure rise over the machine and leads to the slope change of the characteristic. Rotating stall is a flow instability which extends from the runner, the vaneless space to the guide and the stay vane channels at large guide vane...