The hydrodynamic cavitation in a Venturi tube is studied both theoretically and experimentally. A lumped parameter model was developed to describe the accumulation and dissipation of energy in the biphasic flow as a function of the bubble population characteristics (mean volume, standard deviation, and void fraction). Resistance, capacitance, inductance, and frequency lumped-parameters were identified applying the fluid conservation equations (mass and momentum) along with electrical/hydraulic analogies. Experiments with 1,2-propanediol were carried out in a hydraulic circuit composed of valves, a pump, and a Venturi nozzle. The acoustic noise generated (at different cavitation regimes) by the passage of the fluid through the tube was acquired with a piezoelectric sensor. After processing the experimental signals, the system frequency at each operation condition was determined. Plausible estimations of the void fraction were obtained at different experimental frequencies by evaluating a theoretical expression of the frequency lumped-parameter. This semi-empirical technique might be a low-cost alternative when the void fraction of a flow needs to be determined and tomography devices are not available.
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July 2019
Research-Article
Study of a Cavitating Venturi Tube by Lumped Parameters
Samuel Cruz,
Samuel Cruz
Facultad de Ingeniería,
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México
e-mail: samisam98@hotmail.com
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México
e-mail: samisam98@hotmail.com
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Francisco A. Godínez,
Francisco A. Godínez
Instituto de Ingeniería,
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México;
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México;
Polo Universitario de Tecnología
Avanzada Universidad Nacional Autónoma
de México Vía de la Innovación,
No. 410, Autopista Monterrey-Aeropuerto
km. 10 PIIT,
Apodaca C.P. 66629, Nuevo León, México
e-mail: fgodinezr@gmail.com
Avanzada Universidad Nacional Autónoma
de México Vía de la Innovación,
No. 410, Autopista Monterrey-Aeropuerto
km. 10 PIIT,
Apodaca C.P. 66629, Nuevo León, México
e-mail: fgodinezr@gmail.com
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Margarita Navarrete
Margarita Navarrete
Instituto de Ingeniería,
Universidad Nacional Autónoma de México,
Circuito Escolar s/n, Ciudad Universitaria,
Delegación Coyoacán CDMX 04510, México
e-mail: mnm@pumas.iingen.unam.mx
Universidad Nacional Autónoma de México,
Circuito Escolar s/n, Ciudad Universitaria,
Delegación Coyoacán CDMX 04510, México
e-mail: mnm@pumas.iingen.unam.mx
Search for other works by this author on:
Samuel Cruz
Facultad de Ingeniería,
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México
e-mail: samisam98@hotmail.com
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México
e-mail: samisam98@hotmail.com
Francisco A. Godínez
Instituto de Ingeniería,
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México;
Universidad Nacional Autónoma de México,
Circuito Escolar s/n,
Ciudad Universitaria,
Delegación Coyoacán,
CDMX 04510, México;
Polo Universitario de Tecnología
Avanzada Universidad Nacional Autónoma
de México Vía de la Innovación,
No. 410, Autopista Monterrey-Aeropuerto
km. 10 PIIT,
Apodaca C.P. 66629, Nuevo León, México
e-mail: fgodinezr@gmail.com
Avanzada Universidad Nacional Autónoma
de México Vía de la Innovación,
No. 410, Autopista Monterrey-Aeropuerto
km. 10 PIIT,
Apodaca C.P. 66629, Nuevo León, México
e-mail: fgodinezr@gmail.com
Margarita Navarrete
Instituto de Ingeniería,
Universidad Nacional Autónoma de México,
Circuito Escolar s/n, Ciudad Universitaria,
Delegación Coyoacán CDMX 04510, México
e-mail: mnm@pumas.iingen.unam.mx
Universidad Nacional Autónoma de México,
Circuito Escolar s/n, Ciudad Universitaria,
Delegación Coyoacán CDMX 04510, México
e-mail: mnm@pumas.iingen.unam.mx
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received April 5, 2018; final manuscript received December 19, 2018; published online January 30, 2019. Assoc. Editor: Bart van Esch.
J. Fluids Eng. Jul 2019, 141(7): 071304 (9 pages)
Published Online: January 30, 2019
Article history
Received:
April 5, 2018
Revised:
December 19, 2018
Citation
Cruz, S., Godínez, F. A., and Navarrete, M. (January 30, 2019). "Study of a Cavitating Venturi Tube by Lumped Parameters." ASME. J. Fluids Eng. July 2019; 141(7): 071304. https://doi.org/10.1115/1.4042375
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