EFFECTS OF REYNOLDS NUMBER AND OSCILLATION FREQUENCY ON DYNAMIC STALL OF NACA0012 AIRFOIL

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Akhlaghi Hassan; AMIRI MARYAM; EBRAHIMI ABBAS

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Seminar Paper

Paper Information

Seminar: CONFERENCE OF IRANIAN AEROSPACE SOCIETY
Year:2014 | Issue:13

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Title

EFFECTS OF REYNOLDS NUMBER AND OSCILLATION FREQUENCY ON DYNAMIC STALL OF NACA0012 AIRFOIL

Author(s)

Akhlaghi Hassan | AMIRI MARYAM | EBRAHIMI ABBAS | Issue Writer Certificate

Keywords

DYNAMIC STALL

OSCILLATORY FLOW

COMPUTATIONAL SETUP

NACA0012

Abstract

THE CURRENT WORK PRESENTS A NUMERICAL SIMULATION OF DYNAMIC STALL OF NACA0012 AIRFOIL. THE FREE STREAM FLOW IS CONSIDERED AS AN OSCILLATORY FLOW WITH TIME-VARIABLE ANGLE OF ATTACK. THE OPTIMUM COMPUTATIONAL SETUP SUCH AS COMPUTATIONAL DOMAIN, TIME STEP AND TURBULENCE MODELS TO CAPTURE DYNAMIC STALL PHENOMENA ARE EXAMINED. THE EFFECTS OF REYNOLDS NUMBER AND ANGLE OF ATTACK FREQUENCY CHANGE IS ALSO INVESTIGATED ON THE DYNAMIC STALL FEATURE. IT IS DETECTED THAT THE TIME STEP SHOULD BE SUITABLY SMALL TO CAPTURE LEADING EDGE VORTEX CAUSING THE DYNAMIC STALL. HIGHER FREQUENCY CHANGE OF ANGLE OF ATTACK AND/OR HIGHER REYNOLDS NUMBER DELAYS THE DYNAMIC STALL OCCURRENCE.

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APA: Copy

Akhlaghi, Hassan, AMIRI, MARYAM, & EBRAHIMI, ABBAS. (2014). EFFECTS OF REYNOLDS NUMBER AND OSCILLATION FREQUENCY ON DYNAMIC STALL OF NACA0012 AIRFOIL. CONFERENCE OF IRANIAN AEROSPACE SOCIETY. SID. https://sid.ir/paper/939887/en

Vancouver: Copy

Akhlaghi Hassan, AMIRI MARYAM, EBRAHIMI ABBAS. EFFECTS OF REYNOLDS NUMBER AND OSCILLATION FREQUENCY ON DYNAMIC STALL OF NACA0012 AIRFOIL. 2014. Available from: https://sid.ir/paper/939887/en

IEEE: Copy

Hassan Akhlaghi, MARYAM AMIRI, and ABBAS EBRAHIMI, “EFFECTS OF REYNOLDS NUMBER AND OSCILLATION FREQUENCY ON DYNAMIC STALL OF NACA0012 AIRFOIL,” presented at the CONFERENCE OF IRANIAN AEROSPACE SOCIETY. 2014, [Online]. Available: https://sid.ir/paper/939887/en

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