Flow Simulation to Assess Effects of Various Parameters on Performance of a Gas Ultrasonic Flowmeter

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Hosseini, Niloofar Sadat | 2017

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49561 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Mazaheri, Karim
Abstract:
In this thesis we are going to improve an ultrasonic flowmeter accuracy by considering the influence of different parameters like temperature, pressure, etc. Firstl of all different cases of flow condition in which ultrasonic flowmeter may work are specified, then velocity and temperature profile of pipe flow are determined using Fluent software. In thr next step ultrasonic pulses transmitted are simulated by the use of code written in Matlab to find wave travel time in the flow. Evetually an accurate relation of calibration for flowmeter is determined by the use of travel time and all other flow properties to evaluate the accuracy of flowmeter in diffent cases. Relation extracted can be used for a wide range of flow pressure and temperature and this is one of the advantages of it. Furthermore, this relation is extracted for methan and air gas separately
Keywords:
Computational Fluid Dynamics (CFD) ; Calibration ; Gas Flow ; Flowmeter ; Ultrasonic Flowmeter

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