Hi -- I am looking for a way to make a rectangular grid 1000 metres wide (i.e. X direction being east-west), 100 metres in the north-south direction (i.e. Y direction), and 10 metres high (i.e. Z direction, so the top surface of model has an elevation of 10 metres above the bottom, and so the bottom of the model is the datum).

I was planning to start with a 2D model (i.e. 1000m by 100m in plan view), and then extrude it to make it 3D by adding the vertical dimension.

The dimensions of each element should be exactly 1 metre on each side, so each element has volume of 1 cubic metre.

Later, I will want to subdivide the elements so that each element is a half-metre on each side (and therefore the number of elements will increase by a factor of eight). So, I will want to be able to do this easily too.

By the way, I have done all this before in Modflow, where it was very easy to set up. (In standard USGS Modflow in Fortran, it is easy to set this up. I note that, in both Visual Modflow and Groundwater Vistas, it was a simple and intuitively obviously operation.)

So, what are the steps for doing this in Feflow 7? It should be really easy to do, and this problem not complicated, but the Feflow user interface is so completely different from every other modelling package out there, and so I am stumped.

Thanks,

Michael.