Parallel Bayesian Optimization of Thermophysical Properties of Low Thermal Conductivity Materials Using the Transient Plane Source Method in the Body-Fitted Coordinate
2024

Improving Heat Transfer Calculations with a New Method

publication 10 minutes Evidence: high

Author Information

Author(s): Su Huijuan, Kang Jianye, Li Yan, Lyu Mingxin, Lai Yanhua, Dong Zhen

Primary Institution: Shandong University

Hypothesis

Can a body-fitted coordinate system and parallel Bayesian optimization improve the efficiency of thermophysical property measurements?

Conclusion

The study demonstrates that using a body-fitted coordinate system significantly enhances the calculation speed and accuracy of thermophysical property measurements.

Supporting Evidence

  • The body-fitted coordinate system improved calculation speeds by over 36% compared to traditional methods.
  • The accuracy of the new method was verified against computational fluid dynamics results with less than 0.03% error.
  • Adding parallel points in the optimization process reduced computation time by 66.6%.

Takeaway

This study found a way to make measuring how well materials conduct heat much faster and more accurate by using a special grid system and smart math.

Methodology

The study used a transient plane source method combined with a body-fitted coordinate system and a parallel Bayesian optimization algorithm.

Limitations

Only low thermal conductivity materials were considered, limiting the applicability of the findings to other materials.

Digital Object Identifier (DOI)

10.3390/e26121117

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