ABSTRACT
This chapter describes a computer-driven color video display technique for the presentation of flow-field survey data. In this technique, data sets taken in wind tunnel flow-field surveys are processed through a computer, which color codes the data and then displays the results on a color video monitor. This technique allows one to present and interpret vast quantities of data, which heretofore would have been difficult or impossible to comprehend. Flow-field survey techniques generally involve a point-by-point measurement scheme. A matrix of measurement points is required to cover a 2-D survey plane. This type of data is commonly presented in the form of contour lines, the shading of regions, or the use of arrows to represent the direction and magnitude of velocity components. To survey a flow field, one needs a precision mechanical device to move the probe around. The type of traversing rig used depends on the specific test being conducted.
