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Analysis of Effectiveness an Airfoil with Bicamber Surface

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International Journal <strong>of</strong> Engineering <strong>an</strong>d Technology (IJET) – Volume 3 No. 5, May, 2013<br />

been displayed graphically. And finally calculate the<br />

structural effect <strong>of</strong> camber <strong>an</strong>d bicamber airfoil by using<br />

FEM <strong>an</strong>alysis.<br />

∫<br />

∑ ∑<br />

F D =<br />

L =<br />

C p =<br />

v 2 C d A<br />

v 2 C L A<br />

N face = number <strong>of</strong> faces enclosing cell<br />

= value <strong>of</strong> convected through face f<br />

= mass flux through the face<br />

The tr<strong>an</strong>sport <strong>of</strong> a scalar qu<strong>an</strong>tity<br />

represented by the integral equation:<br />

in a continuum is<br />

= area <strong>of</strong> face f<br />

=gradient <strong>of</strong><br />

at face f<br />

∫ ∮ ⃗ ⃗ ∮ ⃗ ∫<br />

⃗= velocity vector<br />

⃗= surface area vector<br />

= diffusion coefficient for<br />

= gradient <strong>of</strong><br />

= source <strong>of</strong> per unit volume<br />

The terms in this equation are, from left to right, the<br />

tr<strong>an</strong>sient term, the convective flux, the diffusive flux <strong>an</strong>d<br />

the volumetric source term.<br />

Discrete Form:-<br />

Applying the above equation to a cell-centered control<br />

volume for cell-0, the following is obtained:<br />

V = cell volume<br />

<strong>Bicamber</strong>’s maximum thickness is 0.12m <strong>an</strong>d maximum<br />

thickness position is 0.16m from leading edge<br />

Author has taken free stream boundary condition.<br />

Temperature 291k<br />

Dynamic viscosity 4.61×10^-5<br />

Turbulent model, Spalart-Allmaras Turbulence<br />

Velocity 60 m/s<br />

Density <strong>of</strong> air 1.2126 kg/m^3<br />

Mach Number 0.1807<br />

2. RESULT<br />

Fig: Mesh <strong>of</strong> NACA 2412 pr<strong>of</strong>ile<br />

ISSN: 2049-3444 © 2013 – IJET Publications UK. All rights reserved.<br />

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