Kinetic friction caused by a fluid on a surface is very small. That is why fluids such as oil are used as lubricants. Don't confuse fluid friction with air or water resistance. That is caused by having to move the fluid out of the way in order to travel through it. Air or water resistance is affected by the streamlining of the object.
Air friction is affected by the surface roughness of the object.
In conclusion Friction is an important resistive force that will slow down and stop objects from moving. Surface area of a clamp I have a question regarding friction. An issue came up at work involving a three point chuck for a lathe. Some associates of mine were wondering if the surface area of the jaws of the chuck in contact with the object had any effect on frictional forces. Any help would be greatly appreciated.