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!COUPLE

Definition of coupled surface (Used only in coupled analysis)

Parameter

TYPE =  1: One-way coupled (FrontISTR starts from receiving data)
2: One-way coupled (FrontISTR starts from sending data)
3: Staggered two-way coupled (FrontISTR starts from receiving data)
4: Staggered Two-way coupled (FrontISTR starts from sending data)
5: Iterative partitioned two-way coupled (FrontISTR starts from receiving data)
6: Iterative partitioned two-way coupled (FrontISTR starts from sending data)
ISTEP = Step No.
From the beginning of analysis to the step specified here, a linearly increasing
function from 0 to 1 is multiplied to the input fluid traction.
After this step, the input fluid traction is directly applied.
WINDOW => 0: Multiply window function(*) to input fluid traction

(*) \(\frac{1}{2}(1 - \cos\frac{2\pi i}{N})\), \(i\): current step, \(N\): no. of steps of current analysis

** 2nd line or later **

(2nd line) COUPLING_SURFACE_ID
Parameter Name Attributions Contents
SURFACE_ID C Surface group name

Example of Use

!COUPLE , TYPE=1
SCOUPLE1
SCOUPLE2