Can particle-based approaches efficiently model fluid behavior at microscopic scales? This paper investigates the application of the **lattice Boltzmann method** to simulate two-dimensional isothermal pressure driven **microchannel flows**. The work focuses on simulating the behaviors of microflows, motivated by the rise of microelectromechanical systems. The study incorporates two boundary treatment schemes to assess their influence on the entire flow field. It examines the distributions of pressure and slip velocity along the channel, as well as the mass flow rate and average velocity. The numerical results are compared to analytical and experimental findings to confirm the simulation's validity. Results are verified by a simulation of shear-driven flow. The study concludes that the **lattice Boltzmann method** is an efficient and accurate approach for simulating **microflows**. These findings are particularly relevant for researchers and engineers designing and optimizing microfluidic devices and systems, offering a powerful tool for understanding and predicting fluid behavior at the microscale. Also, there are other methods of verifying such results.
Published in Physics of Fluids, this paper is directly relevant to the journal's focus on fluid dynamics and related phenomena. By exploring a specific numerical method for simulating microchannel flows, the study contributes to the ongoing research in this area. The paper's references highlight the importance of prior microfluidic research.