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Linear Interpolation in the Vertical Direction

It is used for large amplitude free surface sloshing in a rigid tank subjected to a vertical or horizontal ground motion. In this case, only fluid nodal y-coordinates are updated after each iteration according to the free surface new location.

1-5  Vertical pattern first node (NS  ) 

6-10 		 Vertical pattern last node     (NE  )

11-15 		 Vertical pattern nodal increment (INC )

15-20 		 Vertical pattern number of repetitions  (IREP )

21-25 		 Vertical pattern increment (INCP )

A. Zeiny