| Journal: | Ingeniería mecánica, tecnología y desarrollo |
| Database: | PERIÓDICA |
| System number: | 000455771 |
| ISSN: | 1665-7381 |
| Authors: | Zea Caloca, Ignacio1 Chambers, Frank W2 |
| Institutions: | 1Universidad Politécnica de Chiapas, Departamento de Mecatrónica, Tuxtla Gutiérrez, Chiapas. México 2Oklahoma State University, School of Mechanical and Aerospace Engineering, Stillwater, Oklahoma. Estados Unidos |
| Year: | 2005 |
| Volumen: | 2 |
| Number: | 1 |
| Pages: | 13-21 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Prospectivo |
| English abstract | Filtration in gas microflows is an important problem complicated by possible slip flow for the filter media and the particles. Slip complicates Navier Stokes solutionso. The direct simulation Monte Carlo Method and its derivatives can be applied, but thei are very complex. The lattice Boltzmann method appears to offer some advantages, for such slip and transitioal flows. To evaluate the method, it was used to compute micro-channel and micro orifice flows for a range of Reynods and Knudsen numers. The lattice Bhatnagar -Gross-Krook single relaxation time approximation was used with the relaxation parameter accounting for density ariations. Velocity profile and pressure distribution results for micro-channels are in good agreement with the literature. The micro-orifice method agree well with other computations at low Reynolds numbers, but display variations with increasing Reynolds numbers. The lattice Boltzmann method appear suitable for these flows, but more sophisticated relaxation tme models may be needed for the higher Reynolds numbers |
| Disciplines: | Ingeniería |
| Keyword: | Análisis de vibración, Fluidos, Flujo de deslizamiento, Método lattice Boltzmann, Microfluídos |
| Keyword: | Flow, Lattice-Boltzmann method, Microfluids, Slip flow, Vibration analysis |
| Document request | |
