... 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 separation [ 1 , 2 ], vortex...

...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...

... 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...

... Propulsion Conference , Hartford, CT . 24 08 2011 06 10 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...

.... 24 08 2011 06 10 2011 11 11 2011 11 11 2011 bubbles cavitation flow instability pumps rockets two-phase flow The noncavitating performance of a pump is substantially not affected by the properties of the working fluid in conditions of fully developed turbulent...

... 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...

... approximately equals the exit diameter of the supersonic nozzle. 05 01 2011 22 08 2011 24 10 2011 24 10 2011 blades compressible flow confined flow flow instability flow visualisation impellers nozzles rotors shear turbulence stratified flow supersonic flow Pressure...

.... Therefore, there is a need to investigate the difference between dynamic and quasi-steady characteristics. transient flow radial flow pump stopping period dynamic mesh VOF air computational fluid dynamics flow instability flow simulation fluctuations impellers mesh generation pipe...

... , “ Rotordynamic Forces in Cavitating Inducers ,” ASME J. Fluids Eng. , 199 ( 4 ), pp. 768 – 774 . 10.1115/1.2819496 30 11 2010 09 09 2011 05 10 2011 05 10 2011 cavitation flow instability impellers pumps rockets rotational flow rotors Rotordynamic forces...

... and are described elsewhere [( 4 ), 6 ]. 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 It is well-established that the injection...

... 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. Entire system Maps of the systems based on flame shape and stability were...

...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...

... ratios. For B  = 5%, wake width growth is uninhibited in both the GSW and SLW configurations. 28 08 2010 08 06 2011 16 08 2011 16 08 2011 aerodynamics flow instability shapes (structures) turbulence vortices wakes wind tunnels Fluid mechanics research...

... 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...

... 07 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...

... flow finite difference methods flow instability fluid oscillations jets machinery pulsatile flow pumps two-phase flow vortices cavitation instabilities cavitation surge flat-plate cascade locally homogeneous model CFD In the present study, numerical analysis of a cavitating...

... would like to thank Mr. Yoshifumi SASAO of Tohoku University for his great help with data processing and useful discussions. 06 11 2010 13 04 2011 15 06 2011 15 06 2011 acoustic resonance blades cavitation flow instability fluid oscillations rotational flow...

... 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...

... a rapid rise at relatively small incidence angles [ 14 ]. anemometry boundary layer turbulence drag reduction external flows flow control flow instability flow separation flow visualisation pressure measurement rods (structures) vibrations vortices wakes 29 10 2010 21 04...

... 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...