Fluid flow in a rotating channel of square section

Large eddy simulation of turbulent heat transfer in stationary and rotating square ducts

“…6.3, which summarized the experimental results of Smirnov and Yurkin (1983). Experiments of Smirnov and Yurkin (1983) indicated that this four-vortex pattern was steady for all rotation numbers as Re < 650. Above this critical Reynolds number this pair of vortices began to pulsate and eventually broke up.…”

“…This instability boundary was denoted as boundary "S 1 " in Fig. 6.3, which summarized the experimental results of Smirnov and Yurkin (1983). Experiments of Smirnov and Yurkin (1983) indicated that this four-vortex pattern was steady for all rotation numbers as Re < 650.…”

“…The visualization of the experiments by Smirnov and Yurkin (1983) showed that below the hatched region "S 3 " in Fig. 6.3 there were no oscillations in the positive absolute vorticity area (that is, the negative du/dy area.…”

“…Experiments by Smirnov and Yurkin (1983) and numerical simulations of Kheshgi and Scriven (1985) revealed the existance of two different secondary flow patterns and the transition from one to another in a rotating square duct. For a duct rotating about an axis perpendicular to one of its walls, for example, the situation shown in Fig.…”

Grid Generation and Fluid-Solid Coupling Methods for the Investigation of Gas Turbine Rotor Blade Internal Cooling

“…In real turbine blades, the aspect ratio of the cooling channels varies from 1 : 4 to 4 : 1 depending on the location inside of the rotor blade, therefore three-dimensional effects has to be considered due to the presence of side walls. Early experimental work of Smirnov and Yurkin [103] and numerical simulations of Kheshgi and Scriven [104] described this secondary flow patterns. In addition to this secondary motion, the Coriolis force of the main stream flow and the pressure gradient at the side walls together produces a torque effect whose sense is to cause the streamwise flow convected towards to the trailing surface [105], which is in the opposite sense to the two-dimensional flow pictured in…”