TY  - EJOU
AU  - Li, Xin 
AU  - Zheng, Shaohan 
AU  - Zhang, Yuliang 
AU  - Lv, Minfeng 

TI  - Numerical Calculation of Transient Thermal Characteristics of Nozzle Flowmeter
T2  - Frontiers in Heat and Mass Transfer

PY  - 2023
VL  - 21
IS  - 1
SN  - 2151-8629

AB  - 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.
KW  - Nozzle flowmeters; numerical calculation; transient; thermal characteristics

DO  - 10.32604/fhmt.2023.041778