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How to get particle X,Y,Z position in every time step in Rocky?

- November 28, 2024 at 11:25 am
  
  mkhademi
  Subscriber
  
  Hi everyone,
  I am running a one way coupling Fluent-Rocky. The data is recorded in Rocky every 0.02s. I need to calculate flux of particles into a small control volume inside the solution domain. For this, I need to calculate number of particles entering and exiting through the six sides of the cubic control volume. I need to give an ID for the particles and at each time step know the (x,y,z) coordinates of that particle. How can I do this? Thank you in advance.
- November 28, 2024 at 6:40 pm
  Lucas Bertollo Baggio
  Ansys Employee
  Hello,
  You can use prepost scripting to get an array with the coordinates of every particle in each timestep. For example:
```
project = app.GetProject()
study = project.GetStudy()
particles = study.GetParticles()
particles_coordinates_X = particles.GetGridFunction('Coordinate : X')
particles_X_timestep_1 = particles_coordinates_timestep_1.GetArray(time_step=1)
```

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