Lattice boltzmann method on flow in microchannel

• Main Author: Ng, Chee Horng
• Format: Thesis
• Published: 2009
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.utm.my/id/eprint/18385/; http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:100161?queryType=vitalDismax&query=Lattice+boltzmann+method+on+flow+in+microchannel&public=true

A lattice Boltzmann algorithm to model the fluid flow in microchannel is developed. The details in determining the parameters critical fo r lattice Boltzmann application in microchannel flow are provided. Our results from a 9-bit square lattice Boltzmann model are in good agreement with recent analytical data fo r a pressure-driven microchannel flow in slip flow regime. The differences between the predicted and the analytical fo r pressure gradients along the channel are well comparable. Results suggest that the lattice Boltzmann model described here is an effective computational tool fo r predicting more complex microfluidic systems that might be problematic using conventional methods.