CFD Project (Ansys Fluent)

This CFD project using ANSYS Fluent is to simulate a fluent flow (water) with a velocity of 0.05 m/s inside a pipe of aluminum which used as the boundary condition for this simulation. The assumption of this simulation would be steady state flow, incompressible fluid, Newtonian, constant properties and negligible gravitational effect. The method that used in this simulation is second order implicit. The result that we got from this simulation, we can notice the vorticity in the pipe is low elsewhere, but once it approaches the cylinder, it rises and achieves a high value until it discharges away from the cylinder to decrease again.

The residual values are fluctuating over specific ranges as we see that the x velocity and the y velocity fluctuate around 0.001 while the continuity term is fluctuating around 0.1.

The pressure is intermediate all over the pipe but high when the liquid hits the cylinder and low when it is discharging away from the cylinder.

The vorticity is low everywhere in the pipe but it increases as it hits the cylinder and it approaches a maximum value once it is discharging away from the cylinder to decrease.

X-velocity contour shows that the x-axis velocity of the liquid is the highest closer to the pipe walls away from the cylinder.

As the flow time runs the lift coefficient Ci fluctuates round the value zero and it takes positive and negative values as we evolve in time. We can see from all the previous plot the pressure and velocity fields -like contours and vector fields- as well as the vorticity fields. We can use those plots to analyze the flow properties near the cylinder and away from the cylinder as well as across the pipe and we can study the effects of vorticity as the inlet velocity changes and as the flow mode of the flow from laminar to turbulent.