- #1
greypilgrim
- 547
- 38
Hi.
Pascal's law states that static pressure in a confined incompressible fluid without gravity is the same everywhere. Is this law derivable from more fundamental laws? Some thoughts:
Pascal's law states that static pressure in a confined incompressible fluid without gravity is the same everywhere. Is this law derivable from more fundamental laws? Some thoughts:
- Is Pascal's law part of the definition of the liquid state?
- If the liquid operates between two hydraulic cylinders of different diameters ##A_1,A_2##, Pascal's law says ##\frac{F_1}{A_1}=\frac{F_2}{A_2}##. Incompressibility means ##V_1=A_1x_1=A_2x_2=V_2##, combining those equations leads to ##W_1=F_1x_1=F_2x_2=W_2##, which is conservation of (mechanical) energy. Is Pascal's law equivalent to conservation of energy?