| Title |
Fig. 1. A narrow channel with 31 inclined grooves with a system of Cartesian coordinates x, y, z (a) and zigzag corridor packages of grooves on the channel wall (b). Longitudinal section of grooves in the channel in the middle of transitions from spherical segments to trenches (c). Multiblock computational grids on a structured section of the wall (d). 1 is a detailed Cartesian grid covering the grooves; 2 is an O–type curved grid in the vicinity of each groove; 3 is an oblique “patch” grid superimposed on the central zone of the groove. The upper wall of the channel is not shown. |