Flow analysis over 3d airfoil wing using ANSYS WORKBENCH

Published on 14 Jun 2021. Written by Gurudutt

An airfoil-shaped body moving through a fluid produces an aerodynamic force. Some important constraints to describe an airfoil's shape are its camber and its thickness.

ANSYS Workbench is a software environment for the execution of structural, thermal, and electromagnetic analyses. Focuses on geometry creation and optimization, attaching existing geometry, setting up the finite element model, resolving, and revising results. This software contains the widespread, physical modeling capabilities needed to model flow, turbulence, heat transmission and reactions for industrial applications.

Procedure:

Run ANSYS WORKBENCH.
Go to fluid flow(fluent)
In the tree, outline select XY Plane.
Import the airfoil
Go to tools- select enclosure
Select cushion as uniform in the tree view
Select 2 parts in the tree view and rename the 2 solid as Airfoil and Surrounding flow channel respectively.
Go to the concept- select create option – select Boolean and apply
Go to dimensions- Give the required dimensions for inlet, outlet.
Go to the concept- Select the surface.
In the tree outline-Select surface in the XY plane.
Go to base objects and apply the surface selected.
Generate the Boolean-Geometry is created
Now go to mesh setup
Go to the mesh option.
Right-click on mesh option- select insert-sizing.
In the detail of sizing select geometry and apply after selecting all the 4 sides.
Give a number of divisions as 100 and generate the mesh.
In-tree page- Select solver as Pressure based.
Select velocity formulation as Absolute.
Select time- Steady.
Select 2D space- Axisymmetric (only for 0degree).
Click on the model- Select viscous as K epsilon (2 eq) & press done.
Click on materials-Select Air as fluid and Aluminium as solid.
Click on cell zone conditions- Select operating conditions and see that operating pressure is 101325Pa.
Click on boundary conditions-Select inlet-velocity inlet- 100m/s.
Select outlet- outlet pressure (gauge pressure as 0 itself) and press done.
Click on reference value- Compute from the inlet.
Click on initialization- Select standard initialization and compute from the inlet and initialize.
Click on run calculation and calculate for 1000 iterations (till when the curve converges) and calculate.
Go to results- Insert contour
Go to geometry – For domain select all domains.
For location select periodic 1.
For variable select Velocity.
For Range select global and apply.
Result is displayed.
Go to Function calculator- In function select MassflowAve.
For location select outlet and calculate.
Now to calculate pressure, mass flow average of pressure on the outlet, velocity, force- Go to function and select respective functions.

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Flow analysis over 3d airfoil wing using ANSYS WORKBENCH

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