3 Replies Latest reply on Oct 7, 2014 2:47 PM by Jared Conway

Calculate piston force to push viscous fluid

Francisco Pinto Oct 6, 2014 6:03 PM

Hello.

I am new to solidworks and i am having trouble with my project.

I have a tank where there is a very viscous fluid, like a cosmetic cream and because of that viscosity it wont flow out without help. i have an electric piston that pushes the fluid out, but i need to know what force is needed to push it out so i can choose an adequate linear actuator. i watched a lot of tutorials and i can´t find something that helps me

I hope i asked my question clearly. I really need help.

Thanks

Re: Calculate piston force to push viscous fluid

Jared Conway Oct 6, 2014 9:25 PM (in response to Francisco Pinto)

this is not possible in solidworks simulation or flow simulation.

you will need to resort to estimating things based on hand calcs. you should be able to do something with the viscosity and the force that it would generate trying to leave the small end.
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- Re: Calculate piston force to push viscous fluid
  
  Francisco Pinto Oct 7, 2014 6:03 AM (in response to Jared Conway)
  
  thank you for the answer.
  
  And if i forget about the piston and just work with pressures. for example if i want the fluid to pass through the opening at x m/s. what pressure i need to put on top of the fluid to make it do that. is that possible?
  
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  - Re: Calculate piston force to push viscous fluid
    
    Jared Conway Oct 7, 2014 2:47 PM (in response to Francisco Pinto)
    
    you could assume on the piston side that it is a constant flow and then the outlet is flowing into a fluid volume of the same type of fluid and find out the pressure drop which might help
    
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