coefficient of roughness
1roughness coefficient — A coefficient that describes roughness of a channel bed [16] …
2Drag coefficient — In fluid dynamics, the drag coefficient (commonly denoted as: cd, cx or cw) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment such as air or water. It is used in the drag equation,… …
3Hydraulic roughness — is the measure of the amount of frictional resistance water experiences when passing over land and channel features.[1] One roughness coefficient is Manning s n value.[2] An increase in this n value will cause a decrease in the velocity of water… …
4manning roughness coefficient — after Robert Manning. A measure of channel resistance which is used as part of a formula to calculate velocity (Manning N). The values vary between 0.02 for smooth channels and 0.10 for very rough channels …
5Friction — For other uses, see Friction (disambiguation). Classical mechanics …
6Contact mechanics — Continuum mechanics …
7Thermal contact conductance — In physics, thermal contact conductance is the study of heat conduction between solid bodies in thermal contact. The thermal contact conductance coefficient, hc, is a property indicating the thermal conductivity, or ability to conduct heat,… …
8Darcy-Weisbach equation — The Darcy Weisbach equation is an important and widely used phenomenological equation in hydraulics. It relates the head loss or pressure loss due to friction along a given length of pipe to the average velocity of the fluid flow. Head loss form… …
9Chézy formula — In fluid dynamics, the Chézy formula describes the mean flow velocity of steady, turbulent open channel flow: where v is the mean velocity [m/s], C is the Chézy coefficient [m½/s], R is the hydraulic radius ( water depth) [m], and i is the bottom …
10Darcy–Weisbach equation — In fluid dynamics, the Darcy–Weisbach equation is a phenomenological equation, which relates the head loss or pressure loss due to friction along a given length of pipe to the average velocity of the fluid flow. The equation is named after Henry… …
