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Nanoscience and Technology: An International Journal
ESCI SJR: 1.031 SNIP: 1.517 CiteScore™: 0.7

ISSN Print: 2572-4258
ISSN Online: 2572-4266

Nanoscience and Technology: An International Journal

Formerly Known as Nanomechanics Science and Technology: An International Journal

DOI: 10.1615/NanomechanicsSciTechnolIntJ.v5.i2.60
pages 153-167

ENTROPIC LATTICE BOLTZMANN METHOD FOR MICROFLOW SIMULATION

Ahmad Reza Rahmati
Department of Mechanical Engineering, University of Kashan, Kashan, Iran
Sina Niazi
Department of Mechanical Engineering, Faculty of Engineering, University of Kashan, Kashan, Iran

ABSTRACT

As the development of microelectromechanical systems (MEMS), the flow in microdevices has become an area that receives a significant attention. This paper is concerned with application of the entropic lattice Boltzmann method (ELBM) to simulation of two-dimensional flows in microgeometries. The use of the ELBM for microflow simulation is a good idea because it is based on the Boltzmann equation which is valid for the whole range of Knudsen numbers. In this work the ELBM is applied to simulate gaseous flows in a microcavity and a microchannel for different Knudsen numbers. The obtained numerical results show that the ELBM can be used properly for simulating microflows in slip regimes.


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