International Journal of Rotating Machinery / 2013 / Article / Fig 3

Review Article

Heat Transfer Augmentation Technologies for Internal Cooling of Turbine Components of Gas Turbine Engines

Figure 3

Comparison of relative performance of rib turbulators, pin fins, swirl chambers, dimple-smooth arrangements, dimple-protrusion arrangements, dimple-dimple arrangements, surface roughness, and smooth-walled channels from investigations prior to 2003. Globally averaged Nusselt number ratios are presented as dependent upon friction factor ratios [1].