1.University of Electronic Science and Technology of China,Chengdu, Sichuan 611731, China;
2.Tokheim Hengshan Technologies(Guangzhou) Co, LTD, Guangzhou,Guangdong 510663, China;
3.Guangdong Provincial Academy of Metrology,Guangzhou, Guangdong 510405, China;
4.Development and Planning Office of Sinopec Hubei Branch,Wuhan, Hubei 430030, China
Abstract For the circularsection bend pipe of the threechannel fuel ultrasonic flow meter, a computational fluid dynamic model is established on the basis of the incompressible Reynolds-averaged Navier-Stokes equations.The numerical simulation of the flow field characteristics in the pipeline is achieved by the renormalization group?k-ε?turbulence model, by applying the finite volume method and the structured grid for performing discretization, and standard wall function for modification in the near-wall region.The simulation results indicated that, under the eight kinds of different inlet velocity conditions, three channels velocity profiles are similarly not uniform and vary dramatically change along the axial direction of the pipe.The greatest change in the flow field characteristics is the H-H channel; the least change that is the P-P channel.The P-P channel has the best measurement accuracy and the H-H channel has the worst one.
TANG Jing-yuan,CHEN Jian-ming,WU Wei-long, et al. Numerical Study of the Internal Flow Field in Three-channel Fuel Ultrasonic Flow-meter[J]. Acta Metrologica Sinica, 2013, 34(6): 561-566.
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2013, Vol. 34 
