Domain Wind Monitor
A Domain Wind Monitor is used to monitor the wind data in the entire Domain. It can monitor the following quantities as shown in the figure below:
- Velocity: the wind velocity (vector) at every point of the Domain;
- Mean Velocity: the mean velocity of the wind at every point of the Domain;
- Wind Speed: the wind speed (scalar) at every point of the Domain;
- Mean Wind Speed: the mean wind speed at every point of the Domain;
- Max Wind Speed: the maximum wind speed at every point of the Domain;
- GEM Wind Speed: the gust equivalent mean of the wind speed at every point of the Domain.
The GEM wind speed at a point P and time T = t is defined as: VGEM = max {Vmean, V/1.85}, where Vmean is the mean wind speed at P from time T = 0 to T = t and V is the instantaneous wind speed at P and T = t.
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The monitor will save its output data to a FLD file (AVS field file) whose name can be specified by the "FLD File" item (Virtualwind generates a default FLD File name and the data file saved to the hard disk will eventually be named by the simulation name plus this FLD File name plus a suffix "monitor"). By default, the "Sampling Status" is always checked on. Checking it off means that this monitor will not do anything – no data will be recorded/generated from this monitor.
To create a Domain Wind Monitor, access the Monitors → Create Domain Wind Monitor sub-menu item from the Virtualwind main menu. A new Domain Wind Monitor will then appear in the entity tree under the Monitors item of Atmospheric Conditions.