Hydraulic Diameter Calculator

Hydraulic Diameter Calculator

Cooling circuit cross section diameter is used in calculating Reynolds Number, but many cooling circuit shapes are not round.  When cooling circuits have irregular shapes use Hydraulic Diameter to calculate Reynolds Number.  This calculator tool provides an easy way to calculate Hydraulic Diameter for common shapes found in mold cooling circuits.

DH = 4A/P        A = Area        P = Perimeter

Round Cooling Circuit Bubbler Cooling Annular Shape Flat Baffle Rectangular Passage