Aerodynamic characteristics of shark scale-based vortex generators upon symmetrical airfoil

S. Arunvinthan, V. S. Raatan, S. Nadaraja Pillai, Amjad A. Pasha, Mustafa M. Rahman, Khalid A. Juhany

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


A series of wind tunnel tests were carried out to determine the effect of shark scale-based vortex generators (SSVG) on a NACA 0015 symmetrical airfoil’s aerodynamic characteristics. Three different sets of SSVG with varying geometrical parameters, such as chord length, amplitude, and wavelength, were designed and fabricated using 3D printing. The SSVG models were blended to the baseline NACA 0015 symmetrical airfoil. The wind tunnel experiments were performed over the test airfoil mounted with different sets of SSVG at various angles of attack, ranging from 0◦ to 24◦ in increments of 3◦, and operating in the range of Re = 2 × 105 . The results revealed that the SSVG blended test airfoil reduced the drag and increased the maximum coefficient of lift (CLmax ), thereby enhancing the overall aerodynamic performance. The SSVG offered noteworthy aerodynamic benefits by effectively altering the flow and causing significant spanwise variation in the flow properties. Additionally, attempts were made to identify the optimum chordwise location to blend the SSVG for effective use.
Original languageEnglish (US)
Pages (from-to)1808
Issue number7
StatePublished - Mar 24 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-06-08
Acknowledgements: This project was funded by the Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah, under grant No. (DF-359-135-1441). The authors, therefore, gratefully acknowledge DSR technical and financial support.

ASJC Scopus subject areas

  • General Computer Science


Dive into the research topics of 'Aerodynamic characteristics of shark scale-based vortex generators upon symmetrical airfoil'. Together they form a unique fingerprint.

Cite this