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Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A028, September 21–25, 2020
Paper No: GT2020-15980
...Abstract Abstract In this paper, the combined effects of ribs and double-layer, dome-shaped turning vanes on heat transfer and pressure drop are investigated in an idealized U-bend channel. Five kinds of ribs including transverse ribs, 45° ribs, 135° ribs, V-shaped ribs, and reverse V-shaped...
Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 1653-1664, June 6–10, 2011
Paper No: GT2011-46427
... but nevertheless engine relevant turbine blade cooling design. The system has been investigated with ribbed walls in both passages for cooling enhancement as well as with smooth walls as a reference version in order to identify the effects induced by ribs. The rib orientation on the walls is 45 deg. With a rib...
Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 555-567, June 14–18, 2010
Paper No: GT2010-23510
..., and a sharp 180 degree turn. The system has been investigated with smooth and ribbed walls. Ribs are applied on two opposite walls in a symmetric orientation inclined with an angle of 45 degrees to the main flow direction. The applied rib lay-out is well-proved and optimized with respect to heat transfer...
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1039-1050, June 9–13, 2008
Paper No: GT2008-51183
... diameters and an inherent 180 degree bend. The system has been investigated basically with smooth walls (case 0) and, later on, with two different kinds of ribbed walls in both legs. Ribs are applied to enhance the cooling performance; they are placed on two opposite walls of both legs in a symmetric (case...
Proc. ASME. GT2004, Volume 3: Turbo Expo 2004, 533-545, June 14–17, 2004
Paper No: GT2004-53566
... sections of the channels were adapted to the shape of a typical turbine blade. It has ribbed walls in both channels to enhance heat transfer performance. Ribs are placed at the top and bottom walls of the channels. The system was analyzed at the German Aerospace Center (DLR) with a small scaled model...
Proc. ASME. GT2006, Volume 3: Heat Transfer, Parts A and B, 1027-1039, May 8–11, 2006
Paper No: GT2006-91237
... transfer coefficient on this surface at a range of engine representative inlet Reynolds numbers using a hybrid transient liquid crystal technique. The ability of three different rib configurations to enhance the heat transfer on this surface was also determined. Because the passage at engine scale...
Proc. ASME. GT2006, Volume 3: Heat Transfer, Parts A and B, 909-920, May 8–11, 2006
Paper No: GT2006-91131
... 11 09 2008 Measurements using a novel heat flux sensor were performed in an internal ribbed channel representing the internal cooling passages of a gas turbine blade. These measurements allowed for the characterization of heat transfer turbulence levels and unsteadiness not previously...