Non-Fourier Heat Transfer Study of Couple Stress Fluids in Microchannels

Xue Bo; Zhao Guangpu; Zhang Jiali; Zhang Yue; Wang Han

doi:10.21656/1000-0887.460076

Volume 47 Issue 7

Jul. 2026

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Article Navigation > Applied Mathematics and Mechanics > 2026 > 47(7): 845-857

Xue Bo, Zhao Guangpu, Zhang Jiali, Zhang Yue, Wang Han. Non-Fourier Heat Transfer Study of Couple Stress Fluids in Microchannels[J]. Applied Mathematics and Mechanics, 2026, 47(7): 845-857. doi: 10.21656/1000-0887.460076

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Non-Fourier Heat Transfer Study of Couple Stress Fluids in Microchannels

doi: 10.21656/1000-0887.460076

College of Science, Inner Mongolia University of Technology, Hohhot 010051, P.R. China

Received Date: 2025-04-14
Rev Recd Date: 2025-09-02
Publish Date: 2026-07-01

Abstract

Abstract

The non-Fourier heat transfer characteristics of couple stress fluid in a microchannel were investigated, and effects of the couple stress parameters, the Hartmann number, the Joule heating effect and the 2-phase lag time parameters on the temperature distributions and heat transfer characteristics of the fluid were analyzed through establishment of the relevant governing equations combined with the non-Fourier heat transfer model. The results show that, the above parameters significantly influence the fluidity and heat diffusion characteristics of the couple stress fluid. The increase of the couple stress parameter aggravates the temperature gradient; the Hartmann number enhances the magnetic field confinement and inhibits the heat conduction; the Joule heating effect promotes the temperature gradient and highlights the non-Fourier effect; and the change of the biphasic hysteresis time parameter has a significant modulation effect on the temperature peak and the response speed.
- microchannel,
- couple stress fluid,
- non-Fourier heat transfer,
- temperature distribution

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References(19)

References

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