Study on effect of semi-circular dimple on aerodynamic characteristics of NACA 2412 airfoil

Sowmyashree, Y.; Aishwarya, D. I. P.; Spurthy, S.; Sah, Roshan; Pratik, B. V.; Srikanth, H. V.; Suthan, R.

doi:10.1063/1.5141572

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…When it comes to increasing lift, flow separation is one of the most significant obstacles to overcome, and it can occur even at low speeds. When flow is moving at low subsonic speeds, it reattaches to the surrounding medium as a turbulent boundary layer [1]. When it comes to the design of small aerial vehicles, Mueller et al [2] reported on the importance of Reynolds number and boundary layer effects on airfoils.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Different Outward and Inward Protrusion Positions on the Naca 1410 Airfoil Section at Various Angles of Attack

Balasa

ANDREI

et al. 2021

MTD

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The current work aims to increase the NACA 1410 airfoil's aerodynamic efficiency by altering its surface qualities for various angles of attack. The NACA 1410 airfoil's lower surface has semicircular outward and inward protrusions for a more advantageous profile. The lift and drag coefficients were calculated using CFD, at various attack angles, from -2º to 18º. An ANSYS Fluent Workbench model of the NACA 1410 airfoil was used to investigate flow characteristics at 3 x 105 Reynolds numbers. The semicircular protrusions caused turbulence, reducing pressure drag and increasing lift, delaying flow separation. The NACA1410 profile has protrusions facing outward, increasing the pitch moment coefficient. The inward protrusion was found to be more advantageous in the study of the effects of surface alterations on airfoils at various angles of attack.

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Section: Introductionmentioning

confidence: 99%

The Impact of Different Outward and Inward Protrusion Positions on the Naca 1410 Airfoil Section at Various Angles of Attack

Balasa

ANDREI

et al. 2021

MTD

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“…The boundary layer changed earlier than the natural one. [5][6][7][8][9][10] conducted numerical and experimental investigations, or a combination of the two, on airfoils with various forms and dimples (external, internal, tennis ball shape, and teardrop shape). Experiments were conducted under various boundary conditions (Reynolds numbers, attack angles, and flow velocity).…”

Section: Introductionmentioning

confidence: 99%

“…Its performance is compared to an enhanced design incorporating a revolving cylinder on the upper airfoil surface. The boundary conditions for the present work were Reynolds (10 5 ), and the attack angles were (0,2,4,6,8,10,12,14,16). A turbulence model was developed (SST K-), one of the aerodynamics models.…”

mentioning

confidence: 99%

Enhancement of airfoil performance by rotating cylinder

Kadhim

Hamza

2021

QJES

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This study used a NACA 6409 smooth wing section. Its performance is compared to an enhanced design incorporating a revolving cylinder on the upper airfoil surface. The boundary conditions for the present work were Reynolds (105), and the attack angles were (0,2,4,6,8,10,12,14,16). A turbulence model was developed (SST K-), one of the aerodynamics models. This model is well-suited for sensing flow near a wall. The cylinder was evaluated at three positions (25,50,75) percent of the chord's length. The results indicated that position (25 percent C) was optimal, as it resulted in a 24.45 percent increase in lift coefficient at the angle of attack (12). And when the results were compared to those of other studies, they revealed a significant agreement.

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Estimation of wing stall delay characteristics with outward dimples using numerical analysis

Manikandan,

Sudharsan,

Divakar

et al. 2024

Machine Intelligence in Mechanical Engineering

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Study on effect of semi-circular dimple on aerodynamic characteristics of NACA 2412 airfoil

Cited by 4 publications

References 15 publications

The Impact of Different Outward and Inward Protrusion Positions on the Naca 1410 Airfoil Section at Various Angles of Attack

The Impact of Different Outward and Inward Protrusion Positions on the Naca 1410 Airfoil Section at Various Angles of Attack

Enhancement of airfoil performance by rotating cylinder

Estimation of wing stall delay characteristics with outward dimples using numerical analysis

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