The matching effect of the cold-to-hot fluid on the thermohydraulic characteristics of heat exchangers using gyroid-typed triply periodic minimal surfaces DOI

He-Chen Wang,

Guang Liu, Kaixin Yan

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

The triply periodic minimal surface (TPMS) is a potential candidate for constructing the next-generation heat exchanger (HEX) due to its considerably high specific area and flexible topology. Considering flow rate volume ratio of cold-to-hot fluid domain, this work aims probe matching effect on thermohydraulic features cross-flow HEXs using gyroid TPMS structures. results indicate that owing contiguous intertwined path, structures induce three-dimensional spiral with three typical characteristics (“merge-split,” parallel, circulation) from different perspectives, dominating mixing exchanger. have negligible influence but intensities. Increasing cold-side velocity constant hot-side can remarkably enhance convection transfer cold side an increased pressure drop, while hot influenced negligibly. Finally, total gradually raised reaches stability limited transfer. A slightly higher recommended improving HEXs. In comparison, simultaneously affects fluid–solid interface internal under mutual restriction between fluids optimum Rvol = 1.0. With 0.42 1.0, by 7.7%, outlet temperature decreases 1.5 K. Compared traditional structures, structure offers 100% 150%–225% volume-based power density.

Language: Английский

The matching effect of the cold-to-hot fluid on the thermohydraulic characteristics of heat exchangers using gyroid-typed triply periodic minimal surfaces DOI

He-Chen Wang,

Guang Liu, Kaixin Yan

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

The triply periodic minimal surface (TPMS) is a potential candidate for constructing the next-generation heat exchanger (HEX) due to its considerably high specific area and flexible topology. Considering flow rate volume ratio of cold-to-hot fluid domain, this work aims probe matching effect on thermohydraulic features cross-flow HEXs using gyroid TPMS structures. results indicate that owing contiguous intertwined path, structures induce three-dimensional spiral with three typical characteristics (“merge-split,” parallel, circulation) from different perspectives, dominating mixing exchanger. have negligible influence but intensities. Increasing cold-side velocity constant hot-side can remarkably enhance convection transfer cold side an increased pressure drop, while hot influenced negligibly. Finally, total gradually raised reaches stability limited transfer. A slightly higher recommended improving HEXs. In comparison, simultaneously affects fluid–solid interface internal under mutual restriction between fluids optimum Rvol = 1.0. With 0.42 1.0, by 7.7%, outlet temperature decreases 1.5 K. Compared traditional structures, structure offers 100% 150%–225% volume-based power density.

Language: Английский

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