Tait equation

In fluid mechanics, the Tait equation is an equation of state, used to relate liquid density to pressure. The equation was originally published by Peter Guthrie Tait in 1888 in the form In fluid mechanics, the Tait equation is an equation of state, used to relate liquid density to pressure. The equation was originally published by Peter Guthrie Tait in 1888 in the form where P 0 {displaystyle P_{0}} is the reference pressure (taken to be 1 atmosphere), P {displaystyle P} is the current pressure, V 0 {displaystyle V_{0}} is the volume of fresh water at the reference pressure, V {displaystyle V} is the volume at the current pressure, and A , Π {displaystyle A,Pi } are experimentally determined parameters. Around 1895, the original isothermal Tait equation was replaced by Tammann with an equation of the form The temperature-dependent version of the above equation is popularly known as the Tait equation and is commonly written as