P=Np⋅ρ⋅N3⋅D5cap P equals cap N sub p center dot rho center dot cap N cubed center dot cap D to the fifth power
is a laminar power constant specific to the impeller geometry. Motor Sizing and Efficiencies The calculated power (
Determining if the flow is laminar, transitional, or turbulent is crucial for selecting the correct Npcap N sub p agitator design calculation xls repack
: Inputs for fluid density, viscosity, and tank volume.
Reynolds number, raw power draw, required torque, and shaft thickness. Green (Pass) / Red (Fail) P=Np⋅ρ⋅N3⋅D5cap P equals cap N sub p center
[ N_c = \frac602\pi \sqrt\fracg\delta_static ] Ensures operating speed is safely below resonance.
Cells for Tank ID, Liquid Level, Fluid Density, Viscosity, Impeller Type selection dropdown, and Target RPM. Green (Pass) / Red (Fail) [ N_c =
T=P2πNcap T equals the fraction with numerator cap P and denominator 2 pi cap N end-fraction