Comparison study on flow fields in vortex flow sensors with circular cylinder and trapezoidal cylinder bluff bodies

Author

Zheng, Dan-dan ; Zhang, Tao

Author_Institution

Tianjin Key Lab. of Process Meas. & Control, Tianjin Univ., Tianjin, China

Volume

3

fYear

2011

fDate

10-13 July 2011

Firstpage

1376

Lastpage

1380

Abstract

The flow fields in vortex flow sensors with circular cylinder and trapezoidal cylinder bluff bodies are investigated respectively. Then the characteristics of two flow fields are compared by numerical simulations while the mechanism of vortex shedding is analyzed in detail. Finally, the reason, which leads to different vortex shedding frequency and effects the relationship between Reynolds number and Strouhal number, has been specified as the size of wake flow region behind bluff body where the vortex generated.

Keywords

flow sensors; flow simulation; numerical analysis; vortices; wakes; Reynolds number; Strouhal number; circular cylinder bluff body; flow field characteristics; numerical simulations; trapezoidal cylinder bluff body; vortex flow sensors; vortex shedding frequency; vortex shedding mechanism; wake flow region size; Cybernetics; Machine learning; Numerical simulation; Sensor phenomena and characterization; Shape; Stability analysis; Vortex flow sensor; bluff body; numerical simulation; wake flow;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics (ICMLC), 2011 International Conference on

Conference_Location

Guilin

ISSN

2160-133X

Print_ISBN

978-1-4577-0305-8

Type

conf

DOI

10.1109/ICMLC.2011.6016852

Filename

6016852