Abstract

The analysis of heat transfer and fluid dynamics in a microchannel is currently one of numerous important research areas. The present study investigated the heat transfer and fluid dynamics in a microchannel with arrayed microgrooves. The boundary conditions in the microchannel and microgrooves were the velocity slip condition and temperature jump condition. The numerical calculations in the present study were based on a new numerical analysis scheme that was used to name modified point-matching methods. The methods are applied to calculate the two items coefficients of the series expressions of velocity in the microchannel with microgrooves. The methods analyzed four items coefficients of the series expressions of temperature in the microchannel with microgrooves. In addition, the fluid velocity, temperature distribution, Knudsen number effect, fluid friction factor in the microchannel, and heat transfer were discussed.

Highlights

  • Larrode et al [3] considered the temperature jump condition and found that the effect of the fluid-wall interaction is important

  • Kavehpour et al [8] investigated the effects of compressibility and rarefaction in microchannel heat transfer under slip flow and discussed the compressibility and rarefaction under different Reynolds

  • Zhu and Liao [12] studied the laminar forced convective heat transfer of a gas flowing through a microchannel with an axially-constant heat flux and circumferentially-varied wall temperature boundary condition in the slip-flow and the temperature-jump regime

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Summary

Introduction

Larrode et al [3] considered the temperature jump condition and found that the effect of the fluid-wall interaction is important. Vasudeviah and Balamurugan [9] investigated the convective heat transfer in a microchannel with respect to rarefied gas flows and obtained analytical solutions for the mean Nusselt number.

Results
Conclusion

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