Determining Volume of a Cloud with Species Concentration – Lesson 3

How do I determine the volume of a cloud with a certain range of a species concentration?

First, mark the cells with a species mass fraction INSIDE of ISO-MIN and ISO-MAX under ADAPT >ISO-VALUE ADAPTION. Then, split the register in the fluid zone under Mesh->Separate->Cells. Calculate the volume of the resulting new fluid zone under Report->Volume Integrals->Volume.

If the split operation fails or you have several fluid zones, do the following:

1. Define a custom field function that calculates cell volume
   2. Define a UDS
   3. Patch the UDS in the register with the custom field function
   4. Calculate the volume of the register by Volume Integral->Sum of UDS in the whole fluid zone