The effect of boundary conditions on the accuracy and stability of the numerical solution of fluid flows by Lattice-Boltzmann method

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

BAHRAMI ALI; Ghanvati Jalil; JAFARI AZADEH; RAHIMIAN MOHAMMAD HASSAN

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: THE JOURNAL OF COMPUTATIONAL APPLIED MECHANICS Year:2018 | Volume:49 | Issue:2 Page(s): 240-251

Download Full-Text

View:

143

Download:

134

Cites:

Information Journal Paper

Title

The effect of boundary conditions on the accuracy and stability of the numerical solution of fluid flows by Lattice-Boltzmann method

Author(s)

BAHRAMI ALI | Ghanvati Jalil | JAFARI AZADEH | RAHIMIAN MOHAMMAD HASSAN | Issue Writer Certificate

Keywords

Lattice Boltzamnn Method

No-Slip boundary condition

Regularized boundary condition

Zou-He boundary condition

Abstract

The aim of this study is to investigate the effect of boundary conditions on the accuracy and stability of the numerical solution of fluid flows in the context of single relaxation time Lattice Boltzmann method (SRT-LBM). The fluid flows are simulated using regularized, No-slip, Zou-He and Bounce Back boundary conditions for straight surfaces in a lid driven cavity and the two-dimensional flow in a channel. The solutions for all types of the boundary conditions show good agreement with numerical references and exact solutions. The cavity pressure contours at low relaxation time show drastic perturbations for Zou-He boundary condition, whereas, the perturbation is ignorable for Regularized boundary condition. At High Reynolds number, severe velocity gradients are major reason for numerical instabilities. Therefore, Regularized boundary condition, which considers the velocity gradient in its calculation, has better numerical stability comparing the Zou-He boundary condition. Overall, the selection of appropriate boundary condition depends on the flow regime and Geometry. The proper boundary conditions at low Reynolds numbers are Zou-He and Bounce Back boundary conditions, and at high Reynolds numbers, regularized and No-Slip boundary conditions are recommended.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

APA: Copy

BAHRAMI, ALI, Ghanvati, Jalil, JAFARI, AZADEH, & RAHIMIAN, MOHAMMAD HASSAN. (2018). The effect of boundary conditions on the accuracy and stability of the numerical solution of fluid flows by Lattice-Boltzmann method. THE JOURNAL OF COMPUTATIONAL APPLIED MECHANICS, 49(2), 240-251. SID. https://sid.ir/paper/780107/en

Vancouver: Copy

BAHRAMI ALI, Ghanvati Jalil, JAFARI AZADEH, RAHIMIAN MOHAMMAD HASSAN. The effect of boundary conditions on the accuracy and stability of the numerical solution of fluid flows by Lattice-Boltzmann method. THE JOURNAL OF COMPUTATIONAL APPLIED MECHANICS[Internet]. 2018;49(2):240-251. Available from: https://sid.ir/paper/780107/en

IEEE: Copy

ALI BAHRAMI, Jalil Ghanvati, AZADEH JAFARI, and MOHAMMAD HASSAN RAHIMIAN, “The effect of boundary conditions on the accuracy and stability of the numerical solution of fluid flows by Lattice-Boltzmann method,” THE JOURNAL OF COMPUTATIONAL APPLIED MECHANICS, vol. 49, no. 2, pp. 240–251, 2018, [Online]. Available: https://sid.ir/paper/780107/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops