Hi, Wolfgang

>>    I found one problem with inp file - in line "1 0 quad    1 2 3 4". I 
>> guess the second number should be nonzero here. I have try to set 1 and 
>> get better results. Now I can see velocity changes around the 
>> input-output bounds. 

> Is this an input file you created yourself, or are you saying that there 
> is a mistake in the input files we distribute as part of step-35? 

I created this input file by myself. It's my fault I used only following 
code for set bounds:
Triangulation<2>::active_cell_iterator
    cell = triangulation.begin_active(),
    endc = triangulation.end();
for (; cell != endc; ++cell)
  {
    for (unsigned int f=0; f<GeometryInfo<dim>::faces_per_cell; ++f)
    {
      if (cell->face(f)->at_boundary())
      {
     cell->face(f)->set_boundary_id(2);
...

Now I think I need to use Triangulation<2>::::active_quad_iterator  to set 
boundary id to every quad.

Thank you!
E.P. 

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