UNIT 7 -- GRID DESIGN:

Once the problem is defined and you have conceptualized the model and made preliminary analytical assessments, it is time to design the numerical model and consider how you will discretize space and time. You may find that designing your grid is the most difficult task you undertake in your modeling project. It probably doesn't help to know that the success of your project is dependent on a good grid design and that redesign of the grid is a major undertaking. It is especially difficult if you haven't had experience. At this point you may feel the equivalent of writer's block. So, let's look at the issues we need to keep in mind when building a grid. Then "go for it!" Do not worry about making mistakes, our mission here can be viewed as a journey of mistakes that we can use as learning experiences.