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Thermal Lattice Boltzmann Model for Nonisothermal Gas Flow in a Two-Dimensional Microchannel
Joint Authors
Baliti, Jamal
Alaoui, Mohammed
Elguennouni, Youssef
Hssikou, Mohamed
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-03-19
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
In this paper, the Thermal Lattice Boltzmann Method (TLBM) is used for the simulation of a gas microflow.
A 2D heated microchannel flow driven by a constant inlet velocity profile Uin and nonisothermal walls is investigated numerically.
Two cases of micro-Poiseuille flow are considered in the present study.
In the first case, the temperature of the walls is kept uniform, equal to zero; therefore, the gas is driven along the channel under the inlet parameters of velocity and temperature.
However, in the second one, the gas flow is also induced by the effect of temperature decreasing applied on the walls.
For consistent results, velocity slip and temperature jump boundary conditions are used to capture the nonequilibrium effects near the walls.
The rarefaction effects described by the Knudsen number, on the velocity and temperature profiles are evaluated.
The aim of this study is to prove the efficiency of the TLBM method to simulate Poiseuille flow in case of nonisothermal walls, based on the average value of the Nusselt number and by comparing the results obtained from the TLBM with those obtained using the Finite Difference Method (FDM).
The results also show an interesting sensitivity of velocity and temperature profiles with the rarefaction degree and the imposed temperature gradient of the walls.
American Psychological Association (APA)
Elguennouni, Youssef& Hssikou, Mohamed& Baliti, Jamal& Alaoui, Mohammed. 2020. Thermal Lattice Boltzmann Model for Nonisothermal Gas Flow in a Two-Dimensional Microchannel. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1201488
Modern Language Association (MLA)
Elguennouni, Youssef…[et al.]. Thermal Lattice Boltzmann Model for Nonisothermal Gas Flow in a Two-Dimensional Microchannel. Mathematical Problems in Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1201488
American Medical Association (AMA)
Elguennouni, Youssef& Hssikou, Mohamed& Baliti, Jamal& Alaoui, Mohammed. Thermal Lattice Boltzmann Model for Nonisothermal Gas Flow in a Two-Dimensional Microchannel. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1201488
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201488