USER MANUAL SWAN Cycle III version 40.72A
USER MANUAL SWAN Cycle III version 40.72A
USER MANUAL SWAN Cycle III version 40.72A
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General definitions and remarks 17<br />
Table 2.1: Overview of physical processes and generation mode in <strong>SWAN</strong>.<br />
process authors generation<br />
mode<br />
1st 2nd 3rd<br />
Linear wind growth Cavaleri and Malanotte-Rizzoli (1981) × ×<br />
(modified)<br />
Cavaleri and Malanotte-Rizzoli (1981) ×<br />
Exponential wind growth Snyder et al. (1981) (modified) × ×<br />
Snyder et al. (1981) ×<br />
Janssen (1989, 1991) ×<br />
Whitecapping Holthuijsen and De Boer (1988) × ×<br />
Komen et al. (1984) ×<br />
Janssen (1991) ×<br />
Quadruplets Hasselmann et al. (1985) ×<br />
Triads Eldeberky (1996) × × ×<br />
Depth-induced breaking Battjes and Janssen (1978) × × ×<br />
Bottom friction JONSWAP (1973) × × ×<br />
Collins (1972) × × ×<br />
Madsen et al. (1988) × × ×<br />
Obstacle transmission Seelig (1979), d’Angremond (1996) × × ×<br />
Wave-induced set-up × × ×<br />
• Whitecapping is activated by commands GEN1, GEN2 or GEN3 2 .<br />
• Quadruplets is activated by command GEN3 3 .<br />
• Triads is activated by command TRIAD.<br />
• Bottom friction is activated by command FRICTION.<br />
• Depth-induced breaking is activated by command BREAKING 4 .<br />
• Obstacle transmission is activated by command OBSTACLE.<br />
• Wave-induced set-up is activated by command SETUP.<br />
For the preliminary <strong>SWAN</strong> runs, it is strongly advised to use the default values of the<br />
model coefficients. First, it should be determined whether or not a certain physical process<br />
is relevant to the result. If this cannot be decided by means of a simple hand computation,<br />
2 active by default, can be deactivated with command OFF.<br />
3 active by default, can be deactivated with command OFF.<br />
4 active by default, can be deactivated with command OFF.