Dickson Kachuma

Link compositional fluid model to static function implementation

3

Finalises the compositional fluid model implementation by linking to static function implementation - Changes derivative calculations to use `multifluid::DerivativeOffset` layout instead of separate variables. - Implements fugacity coefficient analytical derivatives...

Implement arbitrary region statistics

1

The purpose of this PR is to allow the user to report region statistics for arbitrary cell regions (cell collections) that are not linked to the simulation (solvers or constitutive...

refactor: Add component selector for fluid models

1

In [IsothermalCompositionalMultiphaseFVMKernels.hpp:2127-2157](https://github.com/GEOS-DEV/GEOS/blob/94a0e86aad417bff6d52c082fe1c898647cf8ca2/src/coreComponents/physicsSolvers/fluidFlow/IsothermalCompositionalMultiphaseFVMKernels.hpp#L2127-L2157) and [ThermalCompositionalMultiphaseFVMKernels.hpp:1397-1432](https://github.com/GEOS-DEV/GEOS/blob/94a0e86aad417bff6d52c082fe1c898647cf8ca2/src/coreComponents/physicsSolvers/fluidFlow/ThermalCompositionalMultiphaseFVMKernels.hpp#L1397-L1432), we have calls of the form ```cpp constitutive::constitutiveUpdatePassThru( fluidBase, [&]( auto & fluid ) { using FluidType = TYPEOFREF( fluid ); // ... isothermalCompositionalMultiphaseBaseKernels::internal::kernelLaunchSelectorCompSwitch( numComps, [&](...

feat: Immiscible water model

3

Completes the water on the immiscible water model. This defines a compositional fluid model in which the water component does not participate in the flash but instead makes up it's...