• As the water flow rate increase, the Reynolds number calculated also increase and the red dye line change from thin thread to swirling in shape.
• Laminar flow occurs when the Reynolds number calculated is below than 2300; transitional flow occurs when Reynolds number calculated is between 2300 and 4000while turbulent flow occurs when Reynolds number calculated is above 4000.
• It is proved that the Reynolds equation is dimensionless, no units left after the calculation