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Thermal transient finite element computation of a mixing Tee by utilizing CFD results

Year of publication

2020

Authors

Saifi, Qais; Cronvall, Otso

Abstract

Thermal distribution and fluctuation in any piping component due to turbulent mixing of flows with different temperatures vary greatly. Usually, computational fluid dynamics (CFD) tools are used for estimation of flows in piping components. Fatigue that results from fluctuating thermal mass flow across the components can be computed by coupling the CFD results with structural mechanics based finite element (FE) results. However, this procedure is laborious and computationally very expensive. A fluid temperature function has been developed in this paper as a function of internal wall coordinates and time by interpolating experimental or CFD results. Bicubic interpolation function has been used for accurate interpolation. Finally, a thermal transient FE analysis for an actual Tee from a nuclear power plant (NPP) was performed by using the developed fluid temperature function and interpolated CFD results.
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Organizations and authors

Publication type

Publication format

Article

Parent publication type

Journal

Article type

Original article

Audience

Scientific

Peer-reviewed

Peer-Reviewed

MINEDU's publication type classification code

A1 Journal article (refereed), original research

Publication channel information

Volume

53

Issue

1

Pages

1-11

​Publication forum

65919

​Publication forum level

1

Open access

Open access in the publisher’s service

Yes

Open access of publication channel

Partially open publication channel

License of the publisher’s version

CC BY

Self-archived

No

Other information

Fields of science

Civil and construction engineering; Mechanical engineering

Keywords

[object Object],[object Object]

Language

English

International co-publication

No

Co-publication with a company

No

DOI

10.23998/rm.76158

The publication is included in the Ministry of Education and Culture’s Publication data collection

Yes