The volume of fluid body stored in a system (tank, container, lake, or other system).

We can imagine the volume (of a fluid) to be stored in systems; moreover, it can flow (can be transported) into and out of systems. That means that we consider the volume of a fluid to be a substancelike quantity.

V

Relation between volume and mass of a body of fluid:

for constant density:

     m = rho*V

for variable density:

m: mass, rho: density of fluid

Relation between mass and amount of susbtance of a fluid body:

     m = M_o*n

n: amount of substance, M_o: molar mass of fluid

[V] = m^3

mass of fluid body, amount of substance of fluid body, density, rate of change of volume, volume current, balance of volume,

The volume of a fluid respresents one of the two fundamental quantities of fluid phenomena (or of hydraulics). It is the quantity describing amounts of fluids. (The other fundamental quantity is the pressure of a fluid. It measures an intesity, rather than an amount.)

Volumen (eines Fluids)