Impact of Flow around Annular Fins on their Thermal Stresses and Strains

Document Type : Research Article

Authors

1 Department of Mathematics, University of Sistan and Baluchestan, Zahedan, Iran,

2 Department of Mathematics, University of Sistan and Baluchestan,zahedan, Iran

3 Department of mechanical engineering, University of Sistan and Baluchestan, Iran

Abstract

This study considers the impact of transient flow around an annular fin on the development of thermal stresses and strains. The fin thermal stress results were solved for two general cases with and without flow around the fin. The investigations are shown that the thermal stresses developing in the fin are initially similar in the two cases (with no flow and with the external flow). Furthermore, the results show that the maximum tangential stress takes place at the same location in the two cases but those are different. In addition, the tangential is not symmetrical in the case with the flow and the maximum stress, although at the base of the fin, is located in the flow front. Moreover, in the case with the flow, the two-dimensional temperature distribution results in a considerable asymmetrical thermal strain and consequently, asymmetrical thermal stress none of which are observed in the case without flow. Therefore, according to the results, the analysis of the flow around annular fins is essential for calculating thermal stresses.

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Main Subjects

References

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Amirkabir Journal of Mechanical Engineering
Volume 52, Issue 1
April 2020
Pages 203-220

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