constantDiameter → sphericalDiameter Relation

File in applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/diameterModels/constantDiameter	Includes file in applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/diameterModels/sphericalDiameter
constantDiameter.H	sphericalDiameter.H