Hi I am new to flow simulation, can anyone please help me with this problem?

I have tried many many simulations by applying different boundary conditions but still the water does not pass through all my pipes.

I am really frustrated and I really wanted to know how to find the required pressure / flow rate so that water can pass through all my pipes.

My only goal is to design a pipe system with nozzles output at least 10 L/min and 100 bar pressure.

I just hope any simulation can help prove that the pipe system can fulfill this requirement.

I have attached my SolidWork assembles and parts below. Please Help.

The simulation results are too big that i could not upload.

Below are some of my simulation trails, I have tried Internal Flow simulation with different inlet volume flow rate and also external flow sim.

1st Trial:  Internal Flow simulation

Inlet Volume Flow Rate = 180 L/min          (since there are 18 output)

Output Pressure = 100 bar                          (in each nozzle)

2nd Trial:  Internal Flow simulation

Inlet Volume Flow Rate = 500 L/min

Output Pressure = 100 bar

3rd Trail: External Flow simulation

Inlet Pressure = 110 bar

Outlet Volume Flow Rate = 180 L/min (in Total)

Thank you!