Abstract: In this paper, the solutions to closure equations of the original general linesymmetric Bricard 6R linkage are derived through matrix method. Two independent linkage closures are found in the original general linesymmetric ...

Abstract: This work summarizes studies that experimentally investigated the effect of rotation on heat transfer in the 180 deg tip and hub turns of cooling channels with various aspect ratios (ARs). The studied AR ranges from 1:4 ...

Abstract: A perturbation method is used to investigate analytically the nonlinear stability behavior of a thin micropolar liquid film flowing down a vertical plate. In this analysis, the conservation of ...

Abstract: The thermal performance of two V-type rib configurations is measured in a rotating, two-pass cooling channel. The coolant travels radially outward in the rectangular first pass (aspect ratio (AR—channel width:height) = ...

Abstract: This study features a rotating, blade-shaped, two-pass cooling channel, which follows the contour and shape of realistic airfoils. Effects of two different 45-deg rib orientations on the heat transfer and pressure loss ...

Abstract: This study features a rotating, blade-shaped, two-pass cooling channel with a variable aspect ratio (AR). Internal cooling passages of modern gas turbine blades closely follow the shape and contour of the airfoils. Therefore, ...

Abstract: This work experimentally studied a rotating, blade-shaped, two-pass cooling channel with various 45-deg rib turbulators and a tip-turning vane. The first passage of the cooling channel has an aspect ratio (AR) = 4:1 with ...

Abstract: A wide variety of pin-fins have been used to enhance heat transfer in internal cooling channels. However, due to their large blockage in the flow direction, they result in an undesirable high pressure drop. This experimental ...