**Flow is further divider into five categories:**

**Uniform Flow**

- If velocity of flow at any given time does not change with respect to distance.

**Non-Uniform Flow**

- If velocity of flow at any given time changes with respect to distance.

**Steady Flow**

- The Flow in which characterisitics of fluid like velocity, pressure, density etc. at a point, do not change with time is called steady flow

**Unsteady Flow**

- If velocity, pressure and density changes with time then flow is unsteady.

**Rotaional Flow**

- If the fluid particles flowing along stream lines, also rotate about their own axis, then flow is rotational.

**Irrotational Flow**

- If Fluid particles do not rotate about their own axis, then flow is irrotational.

**Laminar Flow**

- The flow in which the adjacent layesrs do not cross each other and move along well defined paths.

**Turbulent Flow**

- The flow in which adjacent layers cross each other and do not move along well defined path.

**Compressible Flow**

- If density of the fluid varies from point to point then fluid flow is compressible flow

**ρ ≠ constant**

**Incompressible Flow**

- If density of fluid remains constant in the fluid flow then it is incompressible flow

**ρ = constant**