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Details van artikel 4 van 9 gevonden artikelen
| Titel: |
DSMC (direct simulation Monte Carlo) analysis of microchannel flow with gas-liquid boundary |
| Auteur: |
Ryu, Dong-Hun Lee, Jinho |
| Verschenen in: |
International journal of computational fluid dynamics |
| Paginering: | Jaargang 20 (2006) nr. 9 pagina's 611-620 |
| Jaar: |
2006-10 |
| Inhoud: |
High heat capacity and constant operation temperature make a 2-phase heat remover tool promising for solving high heat dissipation problems in MEMS devices. However, microscale analysis of the flow with the conventional Navier-Stokes equation is inadequate, because the non-continuum effect is important when the characteristic dimension is comparable to the local mean free path. DSMC is a direct, particle-based numerical simulation method that uses no continuum assumption. In this paper, the gas-liquid boundary effects in microchannel flow are studied using this method. Modified DSMC code is used to simulate low-speed flow—under which viscous heating produces no significant temperature change—and MD results are incorporated into the DSMC boundary condition. Steady Couette flow simulation results show that the gas-liquid boundary affects the density distribution and the temperature dependence of the slip velocity. Unsteady simulation results show that mass transfer by diffusion is faster than momentum transfer by collision. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 9 gevonden artikelen
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