There is 'skin friction' also know as drag. There is also lubricated friction.
Rolling Friction is caused by a rolling object such as a wheel when rolling over a surface. Sliding friction is cause by the brishing of an object along with the medium that it is sliding on. This can be visualize by sliding down a hill with a sled in the snow. Fluid friction, by fluid we are alluding to any substance that flows. Therefore air and water for both examples are fluid. When swimming or when is a bird is flying fluid friction is being acted upon them Good luck Stephane E. Fouche
Fluid friction is mostly a question of molecules moving past each other, ANY change in the fluid will effect that.
Friction is most commonly known as any push or pull. There are four types of friction ; sliding friction, static friction, rolling friction, and fluid friction. Sliding friction is when something is sliding against another surface. Static friction is when there is force being applied upon a heavy object or the object is being moved on a rough surface. Rolling friction is when something is rolling on a surface and friction slows it down. Finally, fluid friction is when an object is being slown down on or in water, air, or any others fluid.
It then presume the friction is very small and presume no friction. In fluid and piping, it mean any pressure drop term is due to fluid motion and dispersion alone.
Since air is considered as a fluid, it's a fluid friction and it works the same way as the fluid does.
the four types of friction are static friction,sliding friction,rolling friction,and fluid friction Static friction is friction between two solid objects that are not moving relative to each other. Fluid friction is with any kind of liquid or glass. sliding friction is when a surface slides on another surface. Rolling friction is when you are moving with wheels.
1. The rubbing of one object or surface against another. 2. Conflict, as between persons having dissimilar ideas or interests; clash. 3. Physics A force that resists the relative motion or tendency to such motion of two bodies in contact.
Assuming you mean the inside diameter of the pipe and the friction of any fluid flowing through it, you have the surface area of the pipe, smoothness of the pipe, and also surface tension of the fluid to consider. You also have any chemical reactions between the fluid and the pipe and erosion over time to consider.
Friction is the result of materials pushing against each other. Liquids are very dense so they produce greater friction. Also the fluid will want to maintain it direction or static position. So an object moving in any other direct ion will be pushing ( friction) against the fluid.
There are four types of friction: Fluid Friction (The friction caused by falling through air or water, or any other liquid etc), rolling friction (Like a ball rolling across the floor), static friction (The force it takes to begin something's movement), and sliding friction(Like pushing a box across the floor). In order of strongest to weakest it's Static, Sliding, Rolling, Fluid.
Any fluid besides ATF+4 can cause shift quality issues.
sliding frictionrolling frictionstatic frictionfluid friction