Calculation of volume of a register  How to determine the volume of a cloud with a certain range of a species?
How to determine the volume of a cloud with a certain range of a species concentration? 1. Mark the cells with a a species mass fraction INSIDE of ISOMIN and ISOMAX under ADAPT ISOVALUE ADAPTION 2. a) Split this register in the fluid zone under GRID SEPARATE CELLs Calculate the volume of the resulting new fluid zone under REPORT VOLUME INTEGRALS VOLUME B) If the split operation fails or if you have a number of fluid zones, do the following: Define a CUSTOM FIELD FUNCTION that calculates cell volume Define a UDS Patch the uds in the register with the custom field function Calculate the volume of the register by VOLUME INTEGRAL SUM of uds in the whole fluid zone. 

