Flow over NACA0008 for various Angles of attack

Google drive link to all the contours and plot:


The link contains all the plots for various angles of attack and the pressure and velocity distribution for all cases.


The airfoil used was NACA0008. A chord length of 0.5m was used for the wing with a wingspan of 0.5m.

The lift and drag forces variation are shown in the plot:

The data for each case was extracted from solidworks and plotted in MATLAB.

  • We see that as we increase the angle of attack from 0 degrees gradually, the lift and drag forces also start to increase gradually from 0.
  • The drag initially rises slowly and after a certain point ,it rises very rapidly.
  • The lift force rises very rapidly as we increase the angle of attack.
  • We see that as we keep on increasing the angle of attack, after a certain point (here 6 degrees) the lift forces starts to fall down and drag rises up as usual.
  • This phenomenon is known as stalling of the wing.
  • Due to very high speed of the flow and less energy, the flow is unable to follow the curved surface of the wing and starts to separate from the surface.
  • This is known as flow separation, the separated flow starts to recirculate in that region and forms vortices i.e. swirling whirlpools of air.
  • The vortices induce a very low pressure in the region where they are formed.
  • Due to this low pressure region formed behind the wing, large drag is induced and lift falls down considerably.


Projects by Utkarsh Garg

The backward facing step flow project was performed as a part of skill lync challenge. The simulation was performed on three base grid sizes: 1. 3e-4m 2. 2.5e-4m 3. 2e-4m The above grid sizes were chosen due to lack of computation power.   The Results a Read more

The simulation was run by refining the grid size successively in three steps as follows: Grid Size 1. 2e-4 m 2. 1.5e-4 m 3. 1.2e-4 m   The post-processing results of the three cases are as follows: 1. 2e-4 m Velocity Magnitude Mass Flow Rate Spec Read more

CENTRIFUGAL PUMP DESIGN AND PERFORMANCE ANALYSIS   1. Geometry: PUMP   IMPELLER      2. Performance Analysis of the Centrifugal Pump Performance Analysis of a Centrifugal Pump Velocity normal to face (Outlet Velocity) [m/ Read more

1. Geometry: All dimensions in mm.   2. Boundary Conditions: Total pressure inlet = 4 bar Static pressure outlet = 1 bar Real wall = all inner surfaces of the cylinder, valve, and intake.   3. Grid dependence study: Goal (Value) Design Point Read more

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Google Drive Link for all sorce code files and functions files https://drive.google.com/open?id=1UE-_9nn7VMuXmUqr3XWFgwbxaaGaNpdX   Outputs: 1. Jacobi Method The program also showed the following output in the command window \"The Jacobi Solver could not co Read more

Hagen Poiseuille s Flow
Utkarsh Garg · 2018-06-15 20:28:52

Google drive link to all the blockMeshDict file for various angles: https://drive.google.com/open?id=1GuYMGjgkJHC8hovIfkqA1sp4k1OdNR1t Google drive link to all the plots and source code: https://drive.google.com/open?id=1ntyenSwIed9JrNxDXwMKVZIeMk0-xNrk   Assu Read more

Google drive link containing source code for both functions and all the plots https://drive.google.com/open?id=1q-2do7AV4YP2U5ilL54n37U3CXuNoeNK   Observations and Conclusions: 1. Normalized Mass flow rate We see that in case of conservative form of governing Read more


The End