water flow - Induris

Water is composed of two gases, hydrogen and oxygen, in the ratio of two hydrogen molecules to one oxygen molecule (H2O). In the Imperial system, water boils at atmospheric pressure at 212 degrees Fahrenheit and freezes at 32 degrees Fahrenheit. The maximum specific gravity at 39.1 degrees Fahrenheit is 62.425 pounds per cubic foot. (One pound = 453.5 grams). In the metric system, water boils at atmospheric pressure at 100 degrees Celsius and freezes at zero degrees Celsius. The specific gravity of one liter of water is one kilogram, while one liter is one cubic decimeter. In the metric system, pressure is measured in pascals (Pa), which is equivalent to one newton per square meter. At higher temperatures, the pressure decreases slightly. The compressibility of water is limited. This limitation is such that at a depth of one mile (one mile = 1,609.34 meters), the weight of one cubic foot of water at the surface, which is 62.425 pounds, is only half a pound more. The results of all the formulas used to measure the amount of water flowing through a channel over a given time are approximate. The following formula shows the flow rate in a network under normal conditions with an approximation of 5% to 10%.