Although CFD can provide more realistic answers to flow problems than scale modeling in a wide variety of situations, its true power lies in its ability to visualize flow patterns better than can be achieved in scale models or in the field. Any flow quantity can be queried at any point in space, rather than just where gauges can be placed. Streamlines can be released from any point or surface in the model to visualize how the flow moves from that location throughout the rest of the system. In addition to these powerful features, a wide variety of other plots can be generated. Essentially, whatever you need to see can be seen with CFD.