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Keywords: PIV
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Proceedings Papers

Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T02A002, July 13–15, 2020
Paper No: FEDSM2020-20322
... obstacle (20x10mm²) then a squared obstacle (10x10mm²) were placed in order to study experimentally and numerically the vortex shedding and their interactions in the flow. Upstream obstacles, the studied flows are laminar. In our experimental study, the PIV technique was used in order to obtain...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A014, July 13–15, 2020
Paper No: FEDSM2020-20158
... because of the destruction of the shear-induced vortex dynamics that causes flow stagnation on the rear cavity wall. Our results also indicate the superhydrophobic coating is potentially beneficial in terms of reducing the hemodynamic loading inside the cavity. PIV pulsatile flow cavity flow...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A019, July 28–August 1, 2019
Paper No: AJKFluids2019-4978
... wrapping around thin fabrics which increases its stiffness and tensile strength. Two-dimensional phase-locked particle image velocimetry (PIV) was employed to quantify the flow field characteristics of the stenotic valve. Pressure waveforms were recorded to evaluate the severity of the stenosis via...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A082, July 28–August 1, 2019
Paper No: AJKFluids2019-4651
...Abstract Abstract The study is an experimental investigations using PIV. The measurements were obtained by PIV for an unsteady laminar flow across a rectangular channel with a cross-section 300 × 30mm 2 , in the middle of which is located a cylindrical or a square obstacle. In the case...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 4: Fluid Measurement and Instrumentation; Micro and Nano Fluid Dynamics, V004T06A009, July 28–August 1, 2019
Paper No: AJKFluids2019-5010
..., Visualization, PIV 1. INTRODUCTION The hydraulic system is a mechanism that utilizes the mechanical characteristics of the fluid as a mechanical power source, and can do a lot with less force. In particular, hydraulic pumps are used in a variety of fields such as robots, aircraft, precision machinery...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 4: Fluid Measurement and Instrumentation; Micro and Nano Fluid Dynamics, V004T04A020, July 28–August 1, 2019
Paper No: AJKFluids2019-5111
... by using particle image velocimetry (PIV) system and phase Doppler anemometry (PDA) system. Spray cone angle, Sauter mean diameter (SMD) distribution and weighted mean SMD (WMSMD) were analyzed. In the case of the effect of the internal geometry of the nozzle, the results show that when main and pilot...
Proceedings Papers

Proc. ASME. FEDSM2013, Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Liquid-Solids Flows; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes; Transport Phenomena in Mixing; Turbulent Flows: Issues and Perspectives, V01CT27A004, July 7–11, 2013
Paper No: FEDSM2013-16354
.... To optimize cooling setup, CFD simulations and in-situ experiments using particle image velocimetry (PIV) have been made, as well as global flow rate and pressure measurements in the curved duct. A three-dimensional model of a curved duct with 25 outlet nozzles has been studied for duct Reynolds number up...
Proceedings Papers

Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT15A006, July 7–11, 2013
Paper No: FEDSM2013-16309
.... Specifically tailored for PIV data, they present an important topic in modern experimental fluid mechanics. In fact, the performance of the method is related to its effectiveness in the velocity data analysis and to successfully detect and locate the vortices as well as calculate the characteristic vortex...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 475-478, July 8–12, 2012
Paper No: FEDSM2012-72206
... with tail part of blade pressure surface is more intensive in impeller with large blade outlet angle. Chemical Pump Blade outlet angle PIV Velocity distribution BLADE OUTLET ANGLE EFFECT ON TWO-PHASE FLOW IN CHEMICAL PUMP WITH CRYSTALLIZATION PHENOMENON Liu Dong School of Energy and Power...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 479-489, July 8–12, 2012
Paper No: FEDSM2012-72211
... upstream of the inlet nozzle is compared to flow fields measured in Braunschweig by PIV method. Also the flow field is shown in regions of the pump which are not accessible by experimental methods. Based on these results the shape of the double inlet nozzle is varied in different ways. The influence...
Proceedings Papers

Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 347-355, July 8–12, 2012
Paper No: FEDSM2012-72037
... on the comparison of energy performance under different operating conditions between numerical calculations and experiments, the analysis of the inner flow in the impeller and the comparison of the velocity field in the impeller mid-height between simulation data and the Particle Imaging Velocimetry (PIV...
Proceedings Papers

Proc. ASME. AJK2011, ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 307-310, July 24–29, 2011
Paper No: AJK2011-06058
... 06 06 2012 STREAMLINES IN MIXED-FLOW IMPELLER DEDUCED BY SOLVING PARTIAL DIFFERENTIAL EQUATIONS AND VISUALIZED VIA CFD/PIV Kunxi Qian Fluid Machine Research Center, Jiangsu Univ. Zhenjiang, Jiangsu, China ABSTRACT Put abstract text here. Streamlines in mixed-flow impeller were deduced...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 785-791, August 1–5, 2010
Paper No: FEDSM-ICNMM2010-30944
... reservoir. Particle Image Velocity (PIV) is used to observe a secondary flow pattern and pressure transducer is used for investigating the onset and development of rotating stall inside vaneless diffuser. The reverse flow zone observes near hub wall of impeller exit at relatively low flow rate. This reverse...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2061-2069, August 1–5, 2010
Paper No: FEDSM-ICNMM2010-30548
... not occur through the traditional route as observed in circular cylinder flows. It is found that mode-C instability with a spanwise spacing of 2.4D dominates the near wake development. Wake instabilities Wake transition PLIF PIV POD 1 Copyright © 2010 ASME Proceedings of the ASME 2010 3rd...
Topics: Wakes
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 315-321, August 2–6, 2009
Paper No: FEDSM2009-78277
...~1, m3/min, m) or I .72 (non- dimensional) by using a commercial CFD code and a dynamic PIV (DPIV) measurement. This pump has two positive slopes of a head-flow characteristic at the flow rates of about 60 % Q " pt and 82% Q*pt' In the authors' previous study, it was clarified that the characteristic...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1389-1397, August 2–6, 2009
Paper No: FEDSM2009-78268
... 30 07 2010 An experimental investigation was performed to study the structure of the flow field around finite circular and square cylinders in a water channel. Detailed velocity measurements using a particle image velocimetry (PIV) system and proper orthogonal decomposition (POD...
Proceedings Papers

Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 481-491, August 10–14, 2008
Paper No: FEDSM2008-55035
... were analysed using the particle image velocimetry (PIV) software. Three experimental conditions were studied, i.e. oscillating finned surface in a fluid at rest, steady finned flow and oscillating finned flow. CFD simulations were performed using the software suit CFX11 from ANSYS GmbH, Germany...
Proceedings Papers

Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 1147-1152, August 10–14, 2008
Paper No: FEDSM2008-55132
... 10 07 2009 The relationship between pump characteristic instability and internal flow was investigated on a mixed flow pump with specific speed ωs = 1.72 (dimensionless) or 700 (m 3 /min, m, min −1 ) by using a commercial CFD code and a dynamic PIV (DPIV) measurement. As a result...
Proceedings Papers

Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 1107-1113, August 10–14, 2008
Paper No: FEDSM2008-55025
... model which is suitable for PIV measurement has been developed. The tongue region and the passages region between blades were investigated using PIV. In order to eliminate the effect of refraction on the area close to the wall and increase the measurement accuracy, the fluorescent particles were scatted...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 507-510, July 30–August 2, 2007
Paper No: FEDSM2007-37622
... paper, the flow pattern behind a sharp edge of the entrance was investigated experimentally using the PIV measurement. Siphon Phenomenon Separation Flow Swirling Vortex PIV Proceedings of FEDSM2007 5th Joint ASME/JSME Fluids Engineering Conference July 30-August 2, 2007 San Diego...