Numerical Simulation Study on Thermal-Force Coupling 
of Tanks under Non-Uniform Heating

Shuai Geng

doi:10.70711/frim.v3i7.6815

Numerical Simulation Study on Thermal-Force Coupling of Tanks under Non-Uniform Heating

Shuai Geng

Abstract

In this paper, a numerical simulation of the heat-force coupling process of a simplified circular-section tank under non-uniform
heating conditions is carried out based on the explicit difference method. By defining a local heat source and extending the heating duration,
a sizable temperature gradient and corresponding thermal stresses are formed. The results show that the temperature in the center of the tank
is higher than that at the outer edge by about 0.15-0.2 C, the maximum thermal stress is about 0.4 MPa, and the overall distribution shows
circular symmetry characteristics. These results provide a preliminary reference for the safety assessment and design optimization of pressure
vessels and tanks under local heating or welding conditions.

Keywords

Non-uniform heating; Heat-force coupling; Explicit difference method; Tank; Temperature field; Stress distribution

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DOI: http://dx.doi.org/10.70711/frim.v3i7.6815

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