The behavior of fluid flow is influenced by several factors, including viscosity, cohesion, adhesion, and external forces. Viscosity determines how thick or thin a fluid is, with thicker fluids exhibiting slower flow rates due to increased internal friction.
water flows faster at the centre of a stream or river than
along the edges.
The fluid’s attraction to the material
the pipes and tubes are made of slows down the flow of the fluid.
Attraction between the particles of one and another substance.
Adhension
attraction
among the particles that form the
surface of a liquid
Liquids surface
Surface Tension
Less viscous fluids are thin and runny and have faster flow rates.
Thicker fluids are more viscous and have slower fl ow rates.
How strongly particles of a fluid attract
Cohension
syrup of soy sauce
How easily
fluid’s particles past each other
Viscosity
• the type of fl uid that is flowing (thin fluids flow faster than thick
ones)
• the force pushing on the fluid (stronger forces produce faster flow
rates)
• the size of the pipe or opening the fluid is flowing through (larger
openings allow for faster flow)
• the type of surface over which the fluid is flowing (smooth surfaces
allow for faster flow)