Injection Molding Runner & Sprue Pressure Drop Calculator
Model non-Newtonian polymer pressure drop through cold runner channels, wall shear rate, fill time, and viscous frictional dissipation per Moldflow standards.
Runner Geometry & Channel Profile
Polymer Melt Rheology (Power Law)
Shear thinning index
Pressure Drop & Shear Heating
Runner Pressure Loss (ΔP):
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— psi
Wall Shear Rate (γ_dot):
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Adiabatic Shear Temperature Rise:
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Average Linear Flow Velocity:
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Hydraulic Efficiency Assessment:
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