... This study concerns optimization of shapes, locations, and dimensions of internal cooling passages within a turbine vane under severe environments. The basic aim is to achieve a design that minimizes the average temperature and ensures the structural strength. Considering the prohibitive computational cost...

... of the mainstream flow was radially outward. Both smooth and dimpled channels with a 4:1 aspect ratio ( W : H ) were tested in order to simulate the internal cooling passage between mid-chord to the trailing edge of a gas turbine blade. The channel height and width were 13 mm and 52 mm, respectively. The dimple...