2. Why do we oil machinery? The co-efficient of friction depends upon a) nature of surfaces b) area of contact c) shape of the surfaces d) ail of the above. Answer to: What does fluid friction depend upon? How does friction factor depend on roughness? Fluid friction is the resistance to an object's motion through a liquid or gas.

So if you have a fluid and stop, Burt is moving that way, and this bottom part is moving that way. Reynold's number: The friction factor decreases with increase in Reynold's number but beyond certain value it becomes independent of Reynold's number. Friction does not depend on the amount of surface area in contact between the moving bodies or (within certain limits) on the relative speed of the bodies. [1 mark] How many parameters (variables) does the fluid friction head loss in pipes depend on? the force of friction in a fluid depends on it's speed with respect to the fluid. If the Reynolds number > 2320, you have turbulent flow. There are constant values attributed to various types of pipe, and can be found in a fluid mechanics text. The friction loss in pipe is given by Darcy-Weisbach formula given below, h f = (4 f L V 2) / (2 g D) Where, f = Darcy's coefficient of friction.

Author: Menifee Created Date: 11/17/2013 12:33:00 Title: Webquest: Types of Forces Last modified by: Pat New PC 2012 What is another name for fluid friction? There is an irregular motion of fluid particles in directions transverse to the direction of the main flow. Nature of Fluid Friction. Skin friction is a component of drag, the force resisting the motion of a fluid … Why does a falling object reach a "terminal velocity"? It does, however, depend on the magnitude of the forces holding the bodies together. Question 9 On what factors does drag force depends? Friction factor for fluid flow in pipe does not depend upon the a) Pipe length b) Pipe roughness c) Fluid density & viscosity d) Mass flow rate of fluid NOTE, do not include standard constants. There will be some friction between East, so it kind of around here. What does fluid friction depend upon? (use the word "friction" in your answer). Friction Questions: (Click on the questions to reveal the answers) 1. Select one: a. 3. ... What matters is how the fluid feels about the pipe surface under given flow scenario rather than what it appears to us. 5. The concepts of fluid friction vary depending on whether the motion is taking place in a liquid or gas. It also depends on the shape of the object and the nature of the fluid. 1_Roughness factor of inner surface of the pipe 2_length of the pipe 3inner diameter of the pipe 4_square velocity of the fluid 5_density of the fluid. water 3. What does fluid friction depend upon? Viscosity is a measure of a fluid's resistance to flow. The force of fluid friction depends upon the object's shape, material, and speed, as well as the fluid's viscosity. Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. ... What does the strength of friction depend upon? There is a friction whenever an object moves through a fluid.It is called fluid friction. What does dry friction depend upon? Here, f is called as 'friction factor'. Depends on the molecular makeup, a fluid, intra molecular forces. 5. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Why doesn't friction depend on surface area?

By signing up, you'll get thousands of step-by-step solutions to your homework questions. There are four types of friction: static, sliding, rolling, and fluid friction. Does friction depend on velocity? Static, sliding, and rolling friction occur between solid surfaces. When the nature of surfaces of the two body if in contact or are same then friction depends on area of contact .in this situation friction is directly proportional to … Fluid Friction depends on:-how thick the fluid is (its "viscosity") the shape of the object the speed of the object Remember that "fluid" means a liquid (e.g. The pressure drop caused by friction of laminar flow does not depend of the roughness of pipe. The friction provided by this roughness will slow down fluid flow. Sometimes this equation is also written as, h f = (f L V 2) / (2 g D) Here, f is called as 'friction factor'.