bts file format supports periodic time histories. If you have the wind speed $v(h)$ at some other height h (in metres), then the wind speed $V(10)$ at 10m can be estimated using the formula $v(10) = v(h)\,(10/h)^$ respectively. If you are using the OCIMF model for wind load on vessels, the speed is expected to be that at an elevation of 10m (32.8 ft) above the mean water level (MWL). Negative factors may be used, allowing you to model reversing wind profiles.Ī value of '~' means that there is no vertical variation. To do so, you define a vertical variation factor variable data source. To specify a vertical wind speed profile, you may define the wind speed variation with height above the mean water level (MWL) as a dimensionless multiplicative factor. Wind speed is assumed to be the same at all heights, unless a vertical wind speed profile is specified. The value here is fixed and cannot be edited. The air density is assumed to be constant and the same everywhere. You may choose whether or not wind loads are included for vessels, lines, 6D buoys and 6D buoy wings. 6D buoys – see lumped buoy added mass, damping and drag and spar buoy and towed fish drag.Lines – see hydrodynamic and aerodynamic loads.OrcaFlex includes the effects of wind on:
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