.TRANSFORM.Fluid.Volumes.ClosureModels.Geometry.DrumTypes.PartialDrumType .TRANSFORM.Fluid.Volumes.ClosureModels.Geometry.DrumTypes.PartialDrumTypeCalculations of liquid/vapor/metal volumes and surface areas The following references help describe the calculations -V_liquid: http://www.mathalino.com/reviewer/derivation-formulas/derivation-formula-volume-sphere-integration -surfaceArea_VL: http://tutorial.math.lamar.edu/Classes/CalcI/MoreVolume.aspx -surfaceArea_WL: https://en.wikipedia.org/wiki/Spherical_cap