Environments |
 
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Environments |
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Input: |
Description |
Water Depth: |
The water depth. |
Water Density: |
The mass per unit volume of seawater. |
Gravity: |
The acceleration due to gravity. |
Input: |
Description |
Seabed Stiffness: |
The elastic stiffness per unit length of the seabed, in units of [Force]/[Distance]/[Distance]. |
Longitudinal Coefficient of Friction: |
The coefficient of friction in the longitudinal direction. For any lines which contact the seabed, the local longitudinal direction is parallel to the line axis, while the local transverse direction is perpendicular to it. |
Transverse Coefficient of Friction: |
The coefficient of friction in the transverse direction. |
(a)Refer to Seabed Interaction for further information.
Input: |
Description |
Spectrum Type: |
The options are Pierson-Moskowitz and Jonswap. |
Period Type: |
The options are Tz (mean zero up-crossing period, the default), Tp (peak period) and Te (energy period). |
Number of Harmonics: |
The number of harmonics to be used in the Spectrum Discretisation. |
Model as Regular Wave: |
This option allows you to simulate a random seastate using a regular wave approximation. Caution is strongly advised regarding the user application of this feature. As it provides a highly simplistic representation of the seastate, it is intended for initial screening studies only, and should not be used to assess the operational power performance of a wave energy converter. |
(a)Flexcom has traditionally modelled wave spectra in terms of either Tz or Tp. If you specify a scatter diagram in terms of Te, Flexcom converts Te into Tz. Refer to Wave Energy Period for further information on the conversion process.
Input: |
Description |
Hs: |
The seastate significant wave height Hs. |
Tz/Tp/Te: |
The seastate mean zero up-crossing period Tz, peak period Tp, or energy period Te. |
No. of Occurrences: |
The number of occurrences in a given period (typically one year) of the particular combination of Hs and Tz/Tp/Te values which that cell represents. |
(a)Refer to Metocean Data and Seastate Blocks and Reference Seastates for further information regarding the specification of a scatter diagram and all its associated options.