Wetted Surface Area evaluator uses Wetted Surface Area = 2*pi*Radius of Inner Cylinder*Length of Cylinder to evaluate the Wetted Surface Area, The Wetted Surface Area formula is a function of radius of inner cylinder and length of cylinder. In maritime use, the wetted area is the area of the hull which is immersed in water. This has a direct relationship on the overall hydrodynamic drag of the ship or submarine. Literally how much of the pipe cross-section is “wet” or in contact with the fluid. Let’s say you have a very large sewer pipe under the road. The “wetted” area is only a small portion at the bottom and it should only be fairly full in cases of heavy rain. Now, in a siphon, in which the pipe has to be “primed” so that continuity of flow will make the fluid go from high to lower hydraulic grade, the entire cross-section of the pipe is wetted (ie, in contact with the fluid) or else it doesn’t maintain the siphon. Wetted Surface Area is denoted by Aw symbol.
How to evaluate Wetted Surface Area using this online evaluator? To use this online evaluator for Wetted Surface Area, enter Radius of Inner Cylinder (R) & Length of Cylinder (LCylinder) and hit the calculate button.