Learning Forum

[Federico Alzamora Previtali]

Hello, 

can you try something like this, where you loop over the cells of your deforming zonne?

Node *node_p  

begin_c_loop (f, tf)

    {

      c_node_loop (f, tf, n)

        {

          node_p = C_NODE (f, tf, n);

          if (NODE_POS_NEED_UPDATE (node_p))

            {

              NODE_POS_UPDATED (node_p);

              xold = NODE_X (node_p);                        

              xnew = xold+delta_x;

              NODE_X (node_p) = xnew;

            }

        }

    }

  end_c_loop (f, tf);

 

where NODE_POS_NEED_UPDATE(node_p) is ensures that the position gets updated only than once for any given time step (if running in parallel). 

Also, use CURRENT_TIME instead of time to access flow_time variable.

Note that we can only provide limited support for customization. Hence, the above is only a general suggestion and we cannot guarantee that it will work as intended for your application.