How to model a Pelton turbine linked to an hydraulic circuit ?

Hi everyone,

I'm looking to model a Pelton turbine using Simscape. I know that CAD files can be imported on Simscape. If I import the CAD file of my turbine using a block "file solid" what block should I use to link this turbine with a cylinder being the source of pressure ? What blocks should I use.

Thanks in advance for your answers,

Nils

Answer 1

[Jack]

You can model a Pelton turbine by importing its geometry using a File Solid block for visualization and inertia, and then linking it to a revolute joint in Simscape Multibody for rotation. In the fluid domain, build your hydraulic circuit using Simscape Fluids, and create a custom block that calculates the torque produced by the water flow based on your turbine’s performance equations. This block should have both hydraulic ports (to connect to your fluid circuit) and a rotational port (to apply torque to the turbine’s shaft). Connecting these lets you convert fluid pressure into mechanical motion.

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[Nils]

Thanks for your answer Jack. How do I create a custom block ? Do i have to code it or is there a block in the libraries that I can use and custom myself ?

[Jack]

You can create a custom Simscape block by writing a component in the Simscape language. This means you’ll write a small .ssc file that defines your block’s physical ports (e.g., hydraulic and rotational), parameters, and equations (in your case, how fluid pressure translates into torque). MATLAB provides a Component Authoring Tool and example files to help you get started.

Alternatively, if your needs are simpler, you can build a masked subsystem that encapsulates your calculations, though that approach won’t integrate as seamlessly with the physical modeling framework of Simscape.

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[Nils]

Perfect, thanks !