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Finally, press Display to display the contours of static pressure gradient.

Our goal is to localize discover the areas of high gradient, and mark those areas for adaption. We can use Using the contour graph we can then find the areas of high pressure gradient that we want to refine. In the Contours window, uncheck Auto Range. This will allow us to specify the range of gradients we can see in the graph. Change the Min value to 10000. Then press Display. You will see that the pressure gradients above 10000 generally mark the area of high pressure gradient quite well. We will use 10000 as our threshold for refinement.

For every element that has a pressure above that threshold, that element will be refined. Let's make our threshold 10000. Enter 10000 Return to the Gradient Adaption window, and enter 10000 into Refine Threshold. Then press Mark. The print window will inform us we have marked 70 elements for refinement. Next, press Adapt. You will be asked if you want to change the mesh. Press Yes.

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