FLOW PROCESSES IN HYDRAULIC SYSTEMS
This chapter is concerned with the analytical methods for the evaluation of:
8.2 FLUID PROPERTIES
Fluid density, ρ, is the mass per unit volume and has units of kg m−3. The variation in the density of most hydraulic fluids with temperature is relatively small for the normal operating temperature usually encountered in hydraulic systems. For hydraulic oils the value can be taken as 870 kg/m3.
The viscosity of the fluid can be referred to by: