Thermal Characterization of Rarefied Flows in Rhombic Microchannels
Pamela Vocale, Gian Luca Morini, Kwang-Yong Kim, Jinyuan Qian · 2023
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Description
Pamela Vocale and co-authors simulated gas flow and heat transfer in diamond-shaped microchannels, in a study published in 2023. New fabrication methods have made such channels practical, but thin gas inside them behaves oddly: it slips at the walls and its temperature jumps there. The team solved the flow and energy equations with a commercial code, checking results against published data. They varied the diamond's side angle to test geometry effects.
The simulations covered fully developed laminar flow. How rarefied the gas is, and the channel's shape, both strongly shifted the Nusselt number, the standard heat transfer measure. Their checks matched known velocity profiles in the slip regime and known heat values in the normal regime. The authors offer the results as design guidance for micro-devices that move heat with gas.
Catalog record
| CREATOR | Pamela Vocale, Gian Luca Morini, Kwang-Yong Kim, Jinyuan Qian |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 21 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |