Fig. 3
From: Flow analysis of a set of ornamental chimney caps designed by Antoni Gaudí
Frontal and top views of the 19 individual chimneys. Vertical cuts are also shown to reveal the internal geometry of the chimneys. The two different orientations of the external flow (O1 and O2) are indicated near the top views of chimneys #1, #7, #14 and #19. A picture of the finish cover for each individual chimney is included to easily identify the location of the chimney on the roof shown in Fig. 1. Chimneys are distributed in panels (a), (b) and (c) according to their performance