[mahdi1]

Originally Posted by jayrup

To calculate the Forces on component you need to enable the output for Component in Component properties we have an output option with Pressure & Shear force output.
In your case the Lift force will be component 1 y fluid force : Pressure + shear & Drag force will be component 1 x fluid force : Pressure + shear in Analyze tab > Probe Tab > General History in Flow-3d v10.1.Don't forget to define the gravity.

Regards
Jay

thank you jay

[mahdi1]

Originally Posted by jayrup

To calculate the Forces on component you need to enable the output for Component in Component properties we have an output option with Pressure & Shear force output.
In your case the Lift force will be component 1 y fluid force : Pressure + shear & Drag force will be component 1 x fluid force : Pressure + shear in Analyze tab > Probe Tab > General History in Flow-3d v10.1.Don't forget to define the gravity.

Regards
Jay

Hello jay
when I run software, below message appears.
"There is no reference pressure."

Do you have an advice to solve it?

Regards,
Mahdi

[jayrup]

Originally Posted by mahdi1

Hello jay
when I run software, below message appears.
"There is no reference pressure."

Do you have an advice to solve it?

Regards,
Mahdi

Hi Mahdi,

It is just a warning message from the solver that initial pressure is not given. And solver takes care of that & calculates iteratively in next time step. You can ignore it.
If you really don't want to ignore it you can define uniform pressure in Initial tab & Void Initial state > Pressure. If you are simulating no sharp interface case then in Initial Tab > Pressure > Hydrostatic pressure value takes care of that.
Regards
Jay

[mahdi1]

Originally Posted by jayrup

Hi Mahdi,

It is just a warning message from the solver that initial pressure is not given. And solver takes care of that & calculates iteratively in next time step. You can ignore it.
If you really don't want to ignore it you can define uniform pressure in Initial tab & Void Initial state > Pressure. If you are simulating no sharp interface case then in Initial Tab > Pressure > Hydrostatic pressure value takes care of that.
Regards
Jay

Thanks Jay
Do you know that, how I can print stream line in flow-3d?