Machine Parts

What are the properties of lubricating oil? Properties of fuel lubricating oil : i.                     Proper viscosity ii.                  To thick iii.                Viscosity index iv.                Viscosity number. v.                   Multiple viscosity oil vi.                Resistance to carbon formation and oil oxidation. vii.              Corrosion and rust inhibitors. viii.           Forming resistance. ix.                Extreme pressure resistance. x.                   Energy conserving oil.

  Fluid mechanics one branch is fluid kinematics . It deals with the study of velocity and acceleration of the particles of fluids in motion and their distribution in space without considering any force or energy involved.   The motion of fluid can be described fully by an expression describing the location of a fluid particle in space at different time’s thus enabling determination of the magnitude and direction of velocity and acceleration in the flow field at any instant of time. Methods of Fluid Motion: There have two methods for fluid motion. a.       Eulerian method: In this method, the observer concentrates on a point in the fluid system. Velocity acceleration and other characteristics of the fluid at that particular point are studied. Eulerian method is exclusive method in flid mechanics because of it’s mathematical simplicity. b.       Langrangian method: In this method the observer concentrates on the movement of a single particle. The path taken