EVALUATING MODULATED GRADIENT MODEL IN COMPUTING SUBGRID SCALES STRESS TENSOR ACCOMPANIED WITH PIMPLEFOAM CORRECTION IN THE OPENFOAM PACKAGE

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.

LAR KERMANI ELYAS; Roohi Ehsan

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

Journal Paper

Paper Information

Journal: Modares Mechanical Engineering Year:2017 | Volume:17 | Issue:7 Page(s): 283-294

Download Full-Text

Persian Verion

View:

818

Download:

Cites:

Information Journal Paper

Title

EVALUATING MODULATED GRADIENT MODEL IN COMPUTING SUBGRID SCALES STRESS TENSOR ACCOMPANIED WITH PIMPLEFOAM CORRECTION IN THE OPENFOAM PACKAGE

Author(s)

LAR KERMANI ELYAS | Roohi Ehsan | Issue Writer Certificate

Keywords

MODULATED GRADIENT MODELQ1

SUB-GRID SCALE STRESS TENSORQ1

TURBULENT CHANNEL FLOWQ2

OPENFOAM SOFTWAREQ1

Abstract

Accurate modeling of the sub-grid scales (SGS) is crucial in determining the accuracy of the large eddy simulations (LES) in turbulent flow analysis. In recent years, new branches of the sub-grid scales models called gradient-based models were developed in computing the sub-grid scales stresses and heat fluxes and used in large eddy simulations. In this work, the MODULATED GRADIENT MODEL (MGM) equations were implemented in the Open FOAM package, and pimple Foam solver was modified to improve the solution accuracy. The MODULATED GRADIENT MODEL is based on the Taylor-series expansion of the sub-grid scales stress and employs the local equilibrium hypothesis to evaluate the sub-grid scales kinetic energy. To assess the accuracy of the MODULATED GRADIENT MODEL as well as the improved pimple Foam solver, TURBULENT CHANNEL FLOW at a frictional Reynolds number of 395 was simulated via the Open FOAM package and results were compared with the direct numerical simulation (DNS) data as well as the numerical solution of the Smagorinsky, Dynamic Smagorinsky and Deardorff models. The results show that MODULATED GRADIENT MODEL evaluates first and second order turbulence parameters with a high-level of accuracy.

Cites

No record.

References

No record.

Cite

APA: Copy

LAR KERMANI, ELYAS, & Roohi, Ehsan. (2017). EVALUATING MODULATED GRADIENT MODEL IN COMPUTING SUBGRID SCALES STRESS TENSOR ACCOMPANIED WITH PIMPLEFOAM CORRECTION IN THE OPENFOAM PACKAGE. MODARES MECHANICAL ENGINEERING, 17(7 ), 283-294. SID. https://sid.ir/paper/179327/en

Vancouver: Copy

LAR KERMANI ELYAS, Roohi Ehsan. EVALUATING MODULATED GRADIENT MODEL IN COMPUTING SUBGRID SCALES STRESS TENSOR ACCOMPANIED WITH PIMPLEFOAM CORRECTION IN THE OPENFOAM PACKAGE. MODARES MECHANICAL ENGINEERING[Internet]. 2017;17(7 ):283-294. Available from: https://sid.ir/paper/179327/en

IEEE: Copy

ELYAS LAR KERMANI, and Ehsan Roohi, “EVALUATING MODULATED GRADIENT MODEL IN COMPUTING SUBGRID SCALES STRESS TENSOR ACCOMPANIED WITH PIMPLEFOAM CORRECTION IN THE OPENFOAM PACKAGE,” MODARES MECHANICAL ENGINEERING, vol. 17, no. 7 , pp. 283–294, 2017, [Online]. Available: https://sid.ir/paper/179327/en

Related Journal Papers