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Keywords: flow visualization
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Proceedings Papers

Proc. ASME. FEDSM2022, Volume 1: Fluid Applications and Systems (FASTC); Fluid Measurement and Instrumentation (FMITC); Fluid Mechanics (FMTC), V001T03A017, August 3–5, 2022
Paper No: FEDSM2022-87419
... are subjected to qualitative and quantitative assessment to evaluate flow through the valve and trapping of fluid in the valve pocket. Keywords: DVT; Venous Valve; 3D printing; Flow visualization INTRODUCTION Blood coagulation in deep veins gives rise to Deep Vein Thrombosis (DVT), which can develop...
Proceedings Papers

Proc. ASME. FEDSM2022, Volume 2: Multiphase Flow (MFTC); Computational Fluid Dynamics (CFDTC); Micro and Nano Fluid Dynamics (MNFDTC), V002T04A009, August 3–5, 2022
Paper No: FEDSM2022-86965
... velocity but different superficial gas and liquid velocities in 2-inch (50.8 mm) standard (r/D = 1.5) elbows. Flow visualization experiments were conducted to observe the flow regime. The cases considered are dispersed-bubble flow and churn flow based on the predicted flow pattern maps. However, flow...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 1: Fluid Applications and Systems; Fluid Measurement and Instrumentation, V001T02A007, July 13–15, 2020
Paper No: FEDSM2020-20094
... is higher than that of the stainless steel one, mainly due to the larger thermal conductivity of wall material. Keywords: Evaporation, Flow visualization, Dimpled tubes, Petal-shaped pattern. NOMENCLATURE Ai inner surface area of test tube, m2 Ao outer surface area of test tube, m2 cp specific heat...
Proceedings Papers

Proc. ASME. FEDSM2020, Volume 3: Computational Fluid Dynamics; Micro and Nano Fluid Dynamics, V003T06A009, July 13–15, 2020
Paper No: FEDSM2020-20356
... samples appeared more tightly packed as the compacting force increased. Last, we fabricated a prototype PDMS channel device with a 3D pore network using a sugar template, and visualized flow through the pore network using colored water. The flow visualization result shows that the water was guided...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A085, July 28–August 1, 2019
Paper No: AJKFluids2019-4751
..., the amplitude and time period of periodic axial oscillation, and the polar angle and time period of precession, were measured. The domains for periodic axial oscillation and for precession in unsteady flow were delineated. Keywords: Vortex breakdown, Steady and unsteady flows, Flow visualization, Particle image...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 1: Fluid Mechanics, V001T01A088, July 28–August 1, 2019
Paper No: AJKFluids2019-5530
... to recirculation bubble pumping and large-scale structure are observed from power spectrum density. Keywords: bluff body, cylinder, wake structure, flow visualization, MSBS 1 INTRODUCTION It is known that a large separation area is formed behind a non-streamlined body or a bluff body such as a cylinder or a disk...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A069, July 28–August 1, 2019
Paper No: AJKFluids2019-4974
... in different positions relative to the jet and to the bucket. It is concluded from the results that the flow visualization study, provides exceptional observations with an absolute frame of reference to mark the bucket duty period of a single-jet Pelton runner. The small scale models display erosion damages...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 4: Fluid Measurement and Instrumentation; Micro and Nano Fluid Dynamics, V004T04A036, July 28–August 1, 2019
Paper No: AJKFluids2019-4992
..., as well as hollowing of the liquid core into a crown at the liquid needle exit. Conditions where these structures exist are presented and their impact on spray formation are discussed. high-speed imaging flow visualization radiography synchrotron X-rays X-ray imaging HIGH-SPEED FLOW...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A073, July 28–August 1, 2019
Paper No: AJKFluids2019-5091
... the use of X-ray flow visualization, including X-ray radiography and X-ray computed tomography, to help characterize hydrate formation in a laboratory setting. A structure II hydrate was formed in a concentric cylinder mixing tank where a mixture of distilled water and cyclopentane was stirred...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A001, July 28–August 1, 2019
Paper No: AJKFluids2019-4647
.... The result has shown formation of microbubble clusters intermittently, which has Coulomb potential due to negative electric charge on bubble interfaces. microbubble turbulent boundary layer drag reduction multiphase flow flow visualization VISUALIZATION OF MICROBUBBLE DISTRIBUTION INSIDE...
Proceedings Papers

Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A042, July 28–August 1, 2019
Paper No: AJKFluids2019-4971
... the two cylinders, such as the stagnant bubbly flow and the bubbly wake. microbubble plume cylinders in tandem separated shear layer wake flow visualization FLOW PAST TWO CYLINDERS ARRANGED IN TANDEM WITHIN A MICROBUBBLE PLUME Tomomi Uchiyama Nagoya University Nagoya, Japan Ryota Kano Brother...
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, V01CT17A005, July 7–11, 2013
Paper No: FEDSM2013-16117
... viscosity on the measured parameters are also investigated using three different viscosities. Keywords: Wire Mesh Sensor, two-phase flow, flow visualization, void fraction. INTRODUCTION In many industrial applications such as chemical, oil and nuclear industries gas-liquid two-phase flows are present...
Proceedings Papers

Proc. ASME. FEDSM2010, ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C, 2051-2060, August 1–5, 2010
Paper No: FEDSM-ICNMM2010-30536
... of an elliptical leading edge and a rectangular trailing edge, have been studied in Reynolds numbers ranging from 500 to 1200, based on the thickness of the body. Numerical simulations, Laser Induced Fluorescence (LIF) flow visualization, and Particle Image Velocimetry (PIV) methods have been used to identify...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 2: Fora, 251-257, August 2–6, 2009
Paper No: FEDSM2009-78014
... is applied to the study of the air flow around a 2-D car and its interaction with the cabin internal air. The flow visualization or computational works enable engineers to calculate different car characteristics like drag coefficient, external and internal air flow patterns, etc. Therefore, the teaching...
Proceedings Papers

Proc. ASME. FEDSM2009, Volume 1: Symposia, Parts A, B and C, 1557-1565, August 2–6, 2009
Paper No: FEDSM2009-78136
... the airfoil at Re( d ) = 500, 800, 1200, and 17,000, and flow visualization at Re( d ) = 2200 indicate that λ z has an average value of 2.2d. An active flow control mechanism based on the three dimensional wake instabilities is proposed, to attenuate the fluctuating aerodynamic forces of the airfoil...
Proceedings Papers

Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 481-491, August 10–14, 2008
Paper No: FEDSM2008-55035
... recirculation eddies PIV flow visualization module Proceedings of ASME Fluids Engineering Division Summer Conference Bolaji O. Olayiwola Technische Universität Dortmund Chair of Mechanical Process Engineering Faculty of Biochemical and Chemical Engineering Emil-Figge Str. 68, 44227 Dortmund, Germany Tel...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 503-506, July 30–August 2, 2007
Paper No: FEDSM2007-37621
... appeared remarkably when the supply time of the water jet became long. Keywords: Siphon Phenomenon, Solid Discharge, Water Jet, Flow Visualization INTRODUCTION Gas/liquid two-phase flow that consists of air and water can be observed all over in our daily life, such as a kitchen, a bathroom, and a lavatory...
Topics: Water
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 471-477, July 30–August 2, 2007
Paper No: FEDSM2007-37099
... distribution Flow visualization Proceedings of FEDSM2007 5th Joint ASME/JSME Fluids Engineering Conference July 30-August 2, 2007 San Diego, California USA Copyright © 2007 by ASME 1 ABSTRACT In pursuit of the development of the interfacial area transport equation, the axial development of void fraction...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 479-485, July 30–August 2, 2007
Paper No: FEDSM2007-37101
... pipe. At a high gas flow rate, the average void fraction in the hydrophobic pipe was higher than in the acrylic pipe. The effect of surface wall wettability on frictional pressure loss was confirmed to be insignificant under the present experimental conditions. Two-phase Flow Flow Visualization...
Proceedings Papers

Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 661-670, July 30–August 2, 2007
Paper No: FEDSM2007-37023
... 26 03 2009 There are several methods available to visualize fluid flows when one has optical access. However, when optical access is limited to near the boundaries or not available at all, alternative visualization methods are required. This paper will describe flow visualization using...