I have solved 2D incompressible Navier Stokes and written out a .dat file that includes x,y,u,v,p values. I am trying to get a 2D color heat graph like this one for my data

Here is what I have done so far trying to use Contourplot:

```
Data = Import[
"C:\\Users...
UVP-steady-state.dat", "Table"];
x = Data[[3 ;; 16002, 1]];
y = Data[[3 ;; 16002, 2]];
u = Data[[3 ;; 16002, 3]];
v = Data[[3 ;; 16002, 4]];
p = Data[[3 ;; 16002, 5]];
grid = Transpose[{x, y}];
ListPlot[grid, PlotLabel -> "MeshPoints", AxesLabel -> {"x", "y"},
PlotRange -> Automatic, AspectRatio -> Automatic]
velocity = Transpose[{x, y, Sqrt[u*u + v*v]}];
pressure = Transpose[{x, y, p}];
ListContourPlot[velocity]
ListContourPlot[pressure]
```

My steady state solution is in this .dat file

http://www.wikiupload.com/VSPA5GS9BAXQ830

I am able to make my solution look like this with TecPlot.

For some reason Mathematica with ListContourPlot plots two fairly large gaps in the middle of the graph.