Week 1: Channel flow simulation using CONVERGE CFD
Aim: To understand the flow throug a channel by conducting simulation in Converge.
Introduction: A channel is like a pipe throug which fluid (air) flows. As the fluid flows it creates a velocity profile that has a perticular shape due to the existnce of no-slip condition - zero velocity of flow near the surface.
1) Creating geometry
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2) boundry setting
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Note: Post-processing was done in Converge after the simulation converged.
Result:
Case 1:
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Case 2:
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Case 3:
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As the mesh gets finer the velocity profile becomes an even curve which gives us a good idea about the velocity profile that is created.
Simulation behavious for the given cases is shown in the videos below:
Case 3 with element size of 1e-4 shows great resolution and has better quality because of more number of cells.
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Conclusion:
As the grid becomes finer we tend to get higer resolution at the cost of more time for convergence because of higher number of cells.
This simulation gives a basic introduction to internal flows and how the flow devlopes.