DOI: 10.15673/ret.v53i6.923 (eng)
Authors:
- B. V. Kosoy
- Y. Utaka
Abstract | Full Text: In the present research we investigate pressure driven flow in the transition and free-molecular flow regimes with the objective of developing unified flow models for microchannels. These models are based on a velocity scaling law, which is valid for a wide range of Knudsen number. Simple slip-based descriptions of flowrate in microchannels are corrected for effects in the transition and free-molecular flow regimes with the introduction of a rarefaction factor. The resulting models can predict the velocity distribution, mass flowrate, pressure and shear stress distribution in rectangular microchannels in the entire Knudsen flow regime.
Keywords:
- Flow
- Microchannel
- Model
- Velocity Scaling Law
- Knudsen Flow Regime
- Flowrate Scaling
- Microelectronics Thermal Control Systems