| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Eddy viscosity | Aerospace | The turbulent transfer of momentum by eddies giving rise to an internal fluid friction, in a manner analogous to the action of molecular viscosity in laminar flow, but taking place on a much larger scale. The value of the coefficient of eddy viscosity (an exchange coefficient) is of the order of 104 square centimeters per second, or 100,000 times the molecular kinematic viscosity. (references) | |
| Eddy viscosity tensor | Water | The eddy viscosity tensor defines the orientation (relative to the +x axis) of the primary longitudinal eddy viscosity, which is normally aligned with the primary flow direction. In other words, the Exx (x momentum turbulent exchange in the x direction) is applied to the dominant or longitudinal direction of flow. For riverine cases, this angle may be set to the local river axis. This will then allow you to relax the transverse eddy viscosities. For estuarine conditions where it is difficult to define a primary flow direction, this variable is normally ignored and the transverse and longitudinal eddy viscosities are set the same. (references) | |
| Kinematic eddy viscosity | Aerospace | See kinematic viscosity. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
