Title :
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
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;
Conference_Titel :
Machine Learning and Cybernetics (ICMLC), 2011 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4577-0305-8
DOI :
10.1109/ICMLC.2011.6016852
