Numerical Simulation of Steady Flow Performance of Venturi Tube Based on FLUENT

Authors

Fuyu Liu, College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
Xiaodong Hu, College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
Zhixi Liang, College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China;
Qinglei Liu, College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China;

Abstract

Abstract: The cavitation flow performances of a given Venturi tube were studied to get the steady flow curve and predict the cavitation region based on the realizable k-ε turbulence model and Zwart (Zwart-Gerber-Belamri) cavitation model under the designed conditions with FLUENT software. The throat diameters D of the Venturi tube were chosen as 3mm, 5mm, 7mm and 9mm respectively; and the distances L between the throat and the entrance were 60mm,40mm and 20mm respectively. It can be concluded that: (1) The phenomenon of hydraulic cavitation is the main reason for the steady flow of Venturi tubes; (2) Throat diameter affects the steady flow performance of cavitation. When D is 9mm, the maximum increase of flow rate is 0.13 m³·h^-1; and when D is 3mm, the minimum increase of flow rate is 0.02 m³·h^-1; (3) The distance between the throat and the entrance mainly affects the inception of hydraulic cavitation. When L equals 20mm, the minimum initial entrance pressure of cavitation is 10.77 MPa; and when L equals 60mm, the maximum initial entrance pressure of cavitation is 10.98 MPa.

Recommended Citation

Liu, Fuyu; Hu, Xiaodong; Liang, Zhixi; and Liu, Qinglei (2019) "Numerical Simulation of Steady Flow Performance of Venturi Tube Based on FLUENT," Journal of System Simulation: Vol. 31: Iss. 7, Article 24.
DOI: 10.16182/j.issn1004731x.joss.17-0247
Available at: https://dc-china-simulation.researchcommons.org/journal/vol31/iss7/24

First Page

1460

Revised Date

2017-07-18

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.17-0247

Last Page

1468

CLC

TP391.9

Recommended Citation

Liu Fuyu, Hu Xiaodong, Liang Zhixi, Liu Qinglei. Numerical Simulation of Steady Flow Performance of Venturi Tube Based on FLUENT[J]. Journal of System Simulation, 2019, 31(7): 1460-1468.

Corresponding Author

Xiaodong Hu,

DOI

10.16182/j.issn1004731x.joss.17-0247