1679 | | Kinematic salinity flux at the top boundary, i.e. the sea surface (in psu m/s). |
1680 | | |
1681 | | This parameter only comes into effect for ocean runs (see parameter ocean). |
1682 | | |
1683 | | If a value is assigned to this parameter, the internal two-dimensional surface heat flux field saswst is initialized with the value of top_salinityflux as top (horizontally homogeneous) boundary condition for the salinity equation. This additionally requires that a Neumann condition must be used for the salinity (see bc_sa_t), because otherwise the resolved scale may contribute to the top flux so that a constant flux value cannot be guaranteed. |
1684 | | |
1685 | | Note: |
1686 | | The application of a salinity flux at the model top additionally requires the setting of initial parameter use_top_fluxes = .T.. |
1687 | | |
1688 | | See also bottom_salinityflux. |
| 1681 | Kinematic salinity flux at the top boundary, i.e. the sea surface (in psu m/s).\\\\ |
| 1682 | This parameter only comes into effect for ocean runs (see parameter [#ocean ocean]).\\\\ |
| 1683 | If a value is assigned to this parameter, the internal two-dimensional surface heat flux field {{{saswst}}} is initialized with the value of '''top_salinityflux''' as top (horizontally homogeneous) boundary condition for the salinity equation. This additionally requires that a Neumann condition must be used for the salinity (see [#bc_sa_t bc_sa_t]), because otherwise the resolved scale may contribute to the top flux so that a constant flux value cannot be guaranteed.\\\\ |
| 1684 | '''Note:'''\\ |
| 1685 | The application of a salinity flux at the model top additionally requires the setting of initial parameter [#use_top_fluxes use_top_fluxes] = ''.T.''.\\\\ |
| 1686 | See also [#bottom_salinityflux bottom_salinityflux]. |
1701 | | Generates a turbulent inflow at side boundaries using a turbulence recycling method. |
1702 | | |
1703 | | Turbulent inflow is realized using the turbulence recycling method from Lund et al. (1998, J. Comp. Phys., 140, 233-258) modified by Kataoka and Mizuno (2002, Wind and Structures, 5, 379-392). |
1704 | | |
1705 | | A turbulent inflow requires Dirichlet conditions at the respective inflow boundary. So far, a turbulent inflow is realized from the left (west) side only, i.e. bc_lr = 'dirichlet/radiation' is required! |
1706 | | |
1707 | | The initial (quasi-stationary) turbulence field should be generated by a precursor run and used by setting initializing_actions = 'cyclic_fill'. |
1708 | | |
1709 | | The distance of the recycling plane from the inflow boundary can be set with parameter recycling_width. The heigth above ground above which the turbulence signal is not used for recycling and the width of the layer within the magnitude of the turbulence signal is damped from 100% to 0% can be set with parameters inflow_damping_height and inflow_damping_width. |
1710 | | |
1711 | | The detailed setup for a turbulent inflow is described in chapter 3.9. |
| 1699 | Generates a turbulent inflow at side boundaries using a turbulence recycling method.\\\\ |
| 1700 | Turbulent inflow is realized using the turbulence recycling method from Lund et al. (1998, J. Comp. Phys., 140, 233-258) modified by Kataoka and Mizuno (2002, Wind and Structures, 5, 379-392).\\\\ |
| 1701 | A turbulent inflow requires Dirichlet conditions at the respective inflow boundary. So far, a turbulent inflow is realized from the left (west) side only, i.e. [#bc_lr bc_lr] = '' 'dirichlet/radiation' '' is required!\\\\ |
| 1702 | The initial (quasi-stationary) turbulence field should be generated by a precursor run and used by setting [#initializing_actions initializing_actions] = '' 'cyclic_fill'.''\\\\ |
| 1703 | The distance of the recycling plane from the inflow boundary can be set with parameter [#recycling_width recycling_width]. The heigth above ground above which the turbulence signal is not used for recycling and the width of the layer within the magnitude of the turbulence signal is damped from 100% to 0% can be set with parameters [#inflow_damping_height inflow_damping_height] and [#inflow_damping_width inflow_damping_width].\\\\ |
| 1704 | The detailed setup for a turbulent inflow is described in [[chapter 3.9]]. |