| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Head loss | Administration | 1: (1) The decrease in total head caused by friction. (2) The effect of obstructions, such as narrow bridge openings or buildings, that limit the area through which water must flow, raising the surface of the water upstream from the obstruction. (references) | |
| 2: The energy lost from a flowing fluid due to friction, transitions, bends, etc. (references) | |||
| Head loss | Agriculture | The head, pressure or energy (they are the same) lost by water flowing in a pipe or channel as a result of turbulence caused by the velocity of the flowing water and the roughness of the pipe, channel walls or restrictions caused by fittings. Water flowing in a pipe loses head, pressure or energy as a result of friction losses. Also see friction losses. (references) | |
| Head loss | Weather | The decrease in total head caused by friction. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||