Experiment and modeling of liquid-phase fl ow in a venturi tube using stereoscopic PIV

Yuchen Song; Yunqi Shentu; Yalan Qian; Junlian Yin; Dezhong Wang

doi:https://doi.org/10.1016/j.net.2020.06.027

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자료유형: 학술저널

저자정보: Yuchen Song (Shanghai Jiao Tong University) Yunqi Shentu (Shanghai Jiao Tong University) Yalan Qian (Shanghai Jiao Tong University) Junlian Yin (Shanghai Jiao Tong University) Dezhong Wang (Shanghai Jiao Tong University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제1호

발행연도: 2021.1

수록면: 79 - 92 (14page)

DOI: https://doi.org/10.1016/j.net.2020.06.027

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연구주제

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연구배경

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연구결과

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Venturi tube is based on turbulent flow, whereby the microbubbles can be generated by the turbulentfragmentation. This phenomenon is common in several venturi bubblers used by the nuclear, aerospaceand chemical industries. The first objective of this paper is to study the liquid-phase velocity fieldexperimentally and develop correlations for the turbulent quantities. The second objective is to researchvelocity field characteristics theoretically. Stereoscopic PIV measurements for the velocity field have beenanalyzed and utilized to develop the turbulent kinetic energy in the venturi tube. The tracking propertiesof the tracer particles have been verified enough for us to analyze the turbulence field. The turbulencekinetic energy has a bimodal distribution trend. Also, the results of turbulence intensity along thehorizontal direction is gradually uniform along the downstream. Both the mean velocity and the fluctuationvelocity are proportional to the Reynolds number. Besides, the distribution trend of the meanvelocity and the velocity fluctuation can be determined by the geometric parameters of the venturi tube. An analytical function model for the flow field has been developed to obtain the approximate analyticalsolutions. Good agreement is observed between the model predictions and experimental data

#Stereoscopic particle image velocimetry #Venturi #Velocity field #Turbulent flow #Velocity function

참고문헌 (34)

참고문헌 신청

C. H. Gabbard / 1972 / Development of a venturi type bubble generator for use in the molthen salt reactor xenon removal system

D. Bertoldi / 2015 / Experimental investigation of twophase flashing flows of a binary mixture of infinite relative volatility in a Venturi tube / Exp. Therm. Fluid Sci 64:152~163

J. X. Zhang / 2017 / Analysis on the effect of venturi tube structural parameters on fluid flow / AIP Adv 7:065315

T. A. Bashir / 2011 / The CFD driven optimisation of a modified venturi for cavitational activity / Can. J. Chem. Eng 89:1366~1375

A. Ulas / 2006 / Passive flow control in liquid-propellant rocket engines with cavitating venturi / Flow Meas. Instrum 17:93~97

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