How does streamlining helps to reduce friction?

Answer 1

try pushing your hand through water palm first, then try pushing your hand thorugh water thumb first. Notice that thumb first goes much easier? When you push your hand through the water narrow side first as opposed to wide side first you've done an effort to streamline it. Stream lined means that it will pass through the surrounding media with less resistance, which means(if done to a vehicle) that it can go faster/longer for the same energy.

Answer 2

Air is made of tiny particles. If you need to move an object through some air, it runs into those particles. It has to push them out of the way. The faster it moves, the more air particles it runs into. Friction is the particles of the object, striking the particles of air.

Streamlining reduces the area of the front of the object as it moves forwards, so the air flows around the object rather than being pushed forward by it.

Check out the link.

See how the smoke is not pushing against a large barrier at the front of the car, but curves around it. also, compare the profile and aerodynamics of the car to those of the caravan. The slanty contours of the car knock air (and smoke) particles out of its way; the particles strike it a glancing blow instead of hitting head on.

It's like Wonder Woman being shot at. If the bullets hit her shiny breastplate, they would hurt -- and push her back. But it's much easier to deflect a bullet than to stop it cold, so she knocks them aside with her shiny wrist bands instead. So now, instead of Wonder Woman, your car. Instead of bullets, air particles. Instead of the bullets moving toward Wonder Woman, the bullets hang there and she moves toward them. Other than that: same thing.

Or, consider a parachute. It's the opposite of streamlining. It's designed to run head-on into as many air particles as it possibly can, and not let them slip around the sides. As a result, the falling object is greatly slowed.

Answer 3

Streamlining is the shaping of the outer surface of an object so that when it is moving the paths of airflow (streamlines) tend to exactly follow that outer surface with no turbulence. This usually requires testing of models of the object in a windtunnel.

The elimination of turbulent airflow significantly reduces air resistance.

Answer 4

i want to find that out aswell...but no no one wants to answer do they.

Answer 5

the shape could be changed through streamlining, the changing of shape leads to reduction of friction

Answer 6

Streamlining allows the layers of fluid (air or water) to pass over the object more easily so reducing friction to the movement of the object.