Open Access

ARTICLE

Numerical Calculation of Transient Thermal Characteristics of Nozzle Flowmeter

Xin Li¹, Shaohan Zheng^1,2, Yuliang Zhang^1,*, Minfeng Lv³

1 College of Mechanical Engineering, Quzhou University, Quzhou, 324000, China
2 College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, 310023, China
3 Zhejiang Zhigao Machinery Co., Ltd., Quzhou, 324024, China

* Corresponding Author: Yuliang Zhang. Email:

Frontiers in Heat and Mass Transfer 2023, 21, 245-264. https://doi.org/10.32604/fhmt.2023.041778

Received 05 May 2023; Accepted 07 July 2023; Issue published 30 November 2023

Abstract

This article aims to reveal the transient thermal characteristics of the solid domain in a nozzle flowmeter when measuring fluids of varying temperatures. Based on finite element method, the transient numerical calculation of the thermal characteristics of each component of the nozzle flowmeter has been conducted. The research shows that: as the fluid passes through the flowmeter, the high heat flux area inside the nozzle flowmeter gradually transfer from the center of the nozzle to the inlet and outlet, as well as the pressure tapping points upstream and downstream; High thermal stress zones are present near the upstream and downstream pressure tapping points and inlet and outlet area; High thermal deformation zones occur near the upstream and downstream pressure tapping points and eight slot nozzle.

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Keywords

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