Channel Flow Simulation

Problem Description:

1) To run the simulation for 3 Base Mesh sizes in the Channel flow and analyze the Plots

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Channel FLow:

The channel flow has been simulated with 3 different Mesh sizes, 2e-4m, 1.5e-4m, 1.0e-4m. The Velocity, Pressure, and Mass flow rate plots have been discussed.

Initial Parameters:

Solver: Pressure based steady-state solver

No of Cycles: Varies upon case to case, 10000 cycles to 18000 cycles.

Inlet pressure: 100001 Pa

Oultlet Pressure: 100000 Pa

Gas: Air Mixture.

Base Mesh: (2e-4m)

Base Mesh: (1.5e-4m)

Base Mesh: (1e-4m)

Velocity

case 1

case 2:

Case:3

The velocity contour and plots of the three cases which has been simulated has been shown above. It is seen that, for the first case with base mesh 2e-4m converges within 7000 iteration or cycles but the other two cases takes almost 14000 to 18000 cycles to converge. It is noted as the size of the mesh reduces, longer it takes the simulation.

Pressure

Case 1:

case 2:

case 3:

The Pressure converges fast compared to the velocity for all the three cases. The inlet Pressure is . 100001 Pa and the outlet Pressure is 100000 Pa, which creates a flow through the channel.

Mass Flow rate:

Case: 1

Case: 2

Case : 3

In the mass flow rate, it is observed the same phenomena as Velocity as the mass flow rate is depends on the Velcity.