Learning Forum

[Muhammad Aditya Nugraha]

In Simulation Example: Toy Drone Blade, why do we use pressure instead of force (just like another simulation examples befores)?

What is the difference between them?, In what conditions should we use pressure and force as a load condition?

[Raihan Lutfianto]

Hi Aditya. A great question there. The first step is to think about the physics of them. The main differences between them are the MAGNITUDE of load and the DIRECTION of application.

Please take a look at this video Understanding the Difference Between Forces and Pressures Using Ansys Mechanical — Lesson 4 - YouTube

To answer your last question, we may consider using Force when we would like to model force acting on one part caused by other parts (generally the parts are not modeled). We can use pressure to model loads caused by fluids (assuming there is no shear forces by fluid)