How to use Area Integral Result Control with Impeller Simulation?

Project Support
1

i’m trying to design a impeller for a leaf vaccuum (hobby project) to suck up many leaves fast. i want to figure out which impeler design gives the best cfm. i set up an area integral and average at the inlet and outlet. but how do i decipher the results?

2

Hey there,

It sounds like you’re on the right track with your leaf vacuum impeller project. Setting up area integrals at the inlet and outlet is exactly what you need to do to determine the CFM of your designs. Here’s how you can decipher the results:

  1. Volumetric Flow Rate: The area integral result at the inlet and outlet represents the volumetric flow rate, which is typically in cubic meters per second (m³/s) in SimScale. You can use this value to calculate the CFM. The conversion is approximately 1 m³/s = 2118.88 CFM.
  2. Comparing Designs: To find the best impeller design for CFM, you’ll want to compare the volumetric flow rate at the outlet for each of your simulations. The design that produces the highest volumetric flow rate at the outlet will give you the best CFM. For a properly converged simulation, the flow rates at the inlet and outlet should be very close to each other. If you see a large difference, you may need to check your simulation setup and ensure that the simulation has converged.
  3. Convergence: Speaking of convergence, always make sure your simulations are fully converged before comparing the results. This is a crucial step to ensure that you are comparing reliable and accurate data.

For more in-depth information, you can refer to the SimScale documentation on Result Control and Surface Data.

The following tutorials should be really helpful to set up the simulation: SimScale Tutorials and User Guides | Cloud CAE | SimScale

Best,
Satvik