To use external forces
               with nCloth
            
            nCloth
               reacts to Maya dynamic forces. You can add these external
                  forces to your scene to influence the behavior of your
               nCloth objects.
            
            See also 
                        Nucleus objects and external dynamic forces.
            
         
            To use a 2D or 3D fluid as an external
               force with nCloth
            
            
               - Select the nCloth object that you want
                  to influence with Fluid Effects.
               
- In the Attribute Editor,
                  select the nucleus tab.
               
- In the Gravity and Wind section,
                  turn off the selected nCloth’s Gravity by setting
                  its value to 0.0.
               
- Select the nCloth and then   -select
                  2D or 3D fluid. -select
                  2D or 3D fluid.
- Select Fields > Affect Selected
                     Object(s).
                  The 2D or 3D fluid will
                     now affect your nCloth.
                   
NoteYou can use the 
Dynamic
                     Relationships Editor to view and edit the connections
                  between the nCloth and fluid objects. When you use a 2D or 3D fluid as
                  an external force with nCloth, the fluid is considered a field rather
                  than a collision object. Therefore, to see the connections between
                  the nCloth and fluid object in the 
Dynamic Relationship Editor,
                  select Fields as the selection mode. See 
                           Dynamic Relationships Editor.