Technical Overview Page 4

    In order for an AquaDam® to move as a result of the pressure exerted on one side, it must slide across the surface on which it rests. In order to tip, the water pressure must lift the first inner tube up and over the second. The following calculations show the AquaDams® resistance to tipping:
Assumptions:

To facilitate the calculations, we will assume that the inner tubes are generally rectangular when filled.  As the worst case scenario, we will assume that the water level on one side has reached the top of the AquaDams®.

 
P = pressure
h = water depth
D = width of AquaDam®
I == length of AquaDam®
p = mass density of water
g = gravitational acceleration
Y = specific weight of water
F= force exerted on the face of the AquaDam® due to pressure (P)
A = area of the side face of the AquaDam®
W = weight of water in the inner tube
V = volume of the inner tube
P = pgh = yh

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Reference Material: Technical Overview of AquaDams (Page 04)