CONTINUOUS ADJOINT SHAPE OPTIMIZATION FOR LOW REYNOLDS NUMBER OSCILLATING AIRFOILS IN VISCOUS FLOW ON UNSTRUCTURED GRIDS

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.

GHAFFARI MOHAMMAD; TAVAKOLI SABOUR ALI; PASSANDIDEH FARD MOHAMMAD

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): 161-170

Download Full-Text

Persian Verion

View:

900

Download:

Cites:

Information Journal Paper

Title

CONTINUOUS ADJOINT SHAPE OPTIMIZATION FOR LOW REYNOLDS NUMBER OSCILLATING AIRFOILS IN VISCOUS FLOW ON UNSTRUCTURED GRIDS

Author(s)

GHAFFARI MOHAMMAD | TAVAKOLI SABOUR ALI | PASSANDIDEH FARD MOHAMMAD | Issue Writer Certificate

Keywords

UNSTEADY ADJOINT METHODQ1

OPTIMIZATIONQ2

LOW REYNOLDS NUMBERSQ1

TURBULENT FLOWQ2

UNSTRUCTURED GRIDSQ1

Abstract

The growing and diverse applications of low Reynolds number operating vehicles have compelled researchers to study them more accurately. OPTIMIZATION is an important part of computational science that can improve the performance and increase the efficiency of the initial geometry. Most of the research studies on aerodynamic OPTIMIZATION were focused on high Reynolds number airfoils. But for aerodynamic devices that have small dimensions, like MAVs, usually the flow speed is low and thus the unsteady effects caused by boundary layer separation cannot be neglected. In this article, oscillating airfoil with pitching motion in turbulent and low Reynolds flow has been optimized with the continuous adjoint method. Lift to drag ratio was chosen to be the objective function and free form deformation parameters is adopted for the surface geometry perturbations. Since aerodynamic OPTIMIZATION generally consists of two parts, first, solving the flow equation and then computing the gradient of the objective function, in this article in order to evaluate the accuracy of the OPTIMIZATION process both have been validated. The results show that the adjoint equation converges well and with specifying the suitable constraints, the designed shape approaches the most optimized level without the loss of performance. In a way that the ratio of lift to drag coefficient increases to 84% in such a case.

Cites

No record.

References

No record.

Cite

APA: Copy

GHAFFARI, MOHAMMAD, TAVAKOLI SABOUR, ALI, & PASSANDIDEH FARD, MOHAMMAD. (2017). CONTINUOUS ADJOINT SHAPE OPTIMIZATION FOR LOW REYNOLDS NUMBER OSCILLATING AIRFOILS IN VISCOUS FLOW ON UNSTRUCTURED GRIDS. MODARES MECHANICAL ENGINEERING, 17(7 ), 161-170. SID. https://sid.ir/paper/179367/en

Vancouver: Copy

GHAFFARI MOHAMMAD, TAVAKOLI SABOUR ALI, PASSANDIDEH FARD MOHAMMAD. CONTINUOUS ADJOINT SHAPE OPTIMIZATION FOR LOW REYNOLDS NUMBER OSCILLATING AIRFOILS IN VISCOUS FLOW ON UNSTRUCTURED GRIDS. MODARES MECHANICAL ENGINEERING[Internet]. 2017;17(7 ):161-170. Available from: https://sid.ir/paper/179367/en

IEEE: Copy

MOHAMMAD GHAFFARI, ALI TAVAKOLI SABOUR, and MOHAMMAD PASSANDIDEH FARD, “CONTINUOUS ADJOINT SHAPE OPTIMIZATION FOR LOW REYNOLDS NUMBER OSCILLATING AIRFOILS IN VISCOUS FLOW ON UNSTRUCTURED GRIDS,” MODARES MECHANICAL ENGINEERING, vol. 17, no. 7 , pp. 161–170, 2017, [Online]. Available: https://sid.ir/paper/179367/en

Related Journal Papers