>
Fa   |   Ar   |   En
   cfd study of calibration factor for cross correlation based ultrasonic flowmeter at different upstream pipe lengths  
   
نویسنده alaeddin mohammad amin ,hashemabadi hassan
منبع journal of chemical and petroleum engineering - 2022 - دوره : 56 - شماره : 1 - صفحه:133 -152
چکیده    Despite lots of research on transit-time and doppler flowmeter technologies, little research has been done on ultrasonic cross-correlation flowmeter technology. since the mechanism of the ultrasonic cross- correlation flowmeter (uccf) differs from other ultrasonic flowmeter technologies, it strongly requires individual investigations. the upstream straight pipe length is an important item that strongly affects the uccf accuracy. determination of proper calibration factors concerning upstream pipe length could incredibly improve the measurement precision. in the present study, the computational fluid dynamics (cfd) simulation was conducted, and the water flow inside a pipe without any flow disturbances (e.g., valve, fitting, or bend) was simulated to investigate the calibration factor for the uccf at different upstream straight pipe lengths and different reynolds numbers (from 76,600 to 383,400). for accurately predicting the turbulent flow behavior, reynolds stress model (rsm) was used in this study. the results indicated that by increasing the upstream pipe length up to approximately 25 times pipe diameter, the required calibration factor decreases, then increases, and finally remains constant at lengths greater than 40 times pipe diameter. eventually, a proper correction factor on the calibration curve was developed at different flow reynolds numbers, for the first time, to modify the calibration curve at various upstream pipe lengths.
کلیدواژه accuracy ,computational fluid dynamics (cfd) simulation ,calibration factor ,ultrasonic cross-correlation flowmeter ,upstream straight pipe length
آدرس iran university of science and technology, school of chemical, computational fluid dynamics (cfd) research laboratory, iran, iran university of science and technology, flow measurement research center, iran
پست الکترونیکی hashemabadi@iust.ac.ir
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved