Abstract: The structure of turbulence in compound channel flows is examined in a laboratory study. Shear stresses and turbulence intensities are measured in a channel comprised of a deep central section flanked on either side by ...

Abstract: Experiments were performed in turbulent air flow in a trapezoidal duct with a mean aspect ratio of 3.5, corner angles of 64 and 116 degrees, and with both hydraulically smooth and partly roughened walls. Measurements in ...