# Flocculation Design Equations Calculator

Wastewater Water Treatment Systems Formulas

Solving For Power Dissipated

## Inputs:

drag coefficient (C)
unitless
water density (p)
relative paddle velocity to water (v)

## Conversions:

drag coefficient (C)
= 0
= 0
= 0
= 0
meter^2
water density (p)
= 0
= 0
kilogram/meter^3
relative paddle velocity to water (v)
= 0
= 0
meter/second

## Solution:

power dissipated (P)
= NOT CALCULATED

## Other Units:

Change Equation
Select to solve for a different unknown
 Solve for velocity gradient Solve for power input Solve for dynamic viscosity Solve for tank volume
flocculator power
 Solve for dissipated power Solve for paddle area Solve for drag coefficient Solve for water density Solve for relative paddle velocity
Where
 G = velocity gradient P = power input or dissipated u = dynamic viscosity V = volume C = drag coefficient p = water density A = paddle area v = relative paddle velocity to water

References - Books:
1) P. Aarne Vesilind, J. Jeffrey Peirce and Ruth F. Weiner. 1994. Environmental Engineering. Butterworth Heinemann. 3rd ed.
2) Warren Viessman, Jr, Mark J. Hammer. 1993. Water Supply and Pollution Control. Harper Collins College Publishers. 5th ed.

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By Jimmy Raymond

Contact: aj@ajdesigner.com