'Flow analysis of a Double-Flanged Check valve' simulation project by Ali_Arafat


I created a new simulation project called 'Flow analysis of a Double-Flanged Check valve':

This project simulates water flow through a double flanged check valve.

More of my public projects can be found here.


The project simulates internal flow of water through a double flanged check valve via steady state turbulent flow analysis with the K-Omega SST model.

The source geometry is a general double flanged check valve with a diameter of 94 mm and pipe internal diameter of D = 100 mm. The upstream pipe is about 5D and the downstream pipe is around 15D in length. The figures below show the valve highlighted in red.

The complete domain was meshed using the ‘Snappy-Hex-Mesh’ on the SimScale platform. The resulting mesh consists of approximately 1.8 million cells and is shown in the figures below.


The fluid was taken as water at standard conditions. A fixed inlet velocity of 1 m/s was taken with a reference pressure of value 0 at the outlet. The job was run on 8 compute cores and took around 1.5 hours to complete. The simulation analysis the mean flow field through the valve and in the downstream pipe.

The results below (processed on ParaView) show that the flow exhibits rotation in the cross-section direction and is non-symmetric along the y-axis (y-z plane) possibly due to the asymmetric features in geometry. This results in a non-uniform flow profile at the outlet. This study shows potential to improve and optimize the valve design that may deliver uniform and symmetric flow in the downstream pipe. The figures below also show how the pressure distribution changes across the valve and a 3D visualization of the streamlines.

Shown below is the velocity field.

Shown below is the pressure field.

Shown below are the velocity streamlines in the pipe