Contour and Isosurface plots are used in postprocessing to visualize scalar quantities and fields in your simulation results. Contour plots display your results on a series of colored regions or lines. Isosurface plots display your results on a set of colored surfaces where the results quantity is constant.
Watch this video to learn how to use these plot types to fit the needs of your COMSOL Multiphysics® model. For the heat sink model shown here, we can add contours or isosurfaces to show the temperature changing with distance from the heat sink.