2007
DOI: 10.1016/j.ijthermalsci.2006.07.004
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An experimental investigation of the heat transfer in a ribbed triangular cooling channel

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Cited by 40 publications
(6 citation statements)
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“…Rongguang et al [14] carried out numerical simulation by a multi-block 3-D solver, which is based on solving the Navier-Stokes and energy equation in conjunction with a low-Reynolds number k-ω turbulence model. Chandra et al [15] conducted an experimental study of surface heat transfer and friction characteristics of a fully developed turbulent air flow in a square channel with transverse ribs on one, two three and four walls is reported, similar way triangular channel with a rounded edge as a model of a leading edge cooling for a gas turbine blade was presented by experimentally Amro et al [16]. Abhishek et al [17] presented local heat transfer distributions in a double wall ribbed square channel with 90° continuous, 90° saw tooth profiled and 60° V-broken ribs.…”
Section: Introductionmentioning
confidence: 85%
“…Rongguang et al [14] carried out numerical simulation by a multi-block 3-D solver, which is based on solving the Navier-Stokes and energy equation in conjunction with a low-Reynolds number k-ω turbulence model. Chandra et al [15] conducted an experimental study of surface heat transfer and friction characteristics of a fully developed turbulent air flow in a square channel with transverse ribs on one, two three and four walls is reported, similar way triangular channel with a rounded edge as a model of a leading edge cooling for a gas turbine blade was presented by experimentally Amro et al [16]. Abhishek et al [17] presented local heat transfer distributions in a double wall ribbed square channel with 90° continuous, 90° saw tooth profiled and 60° V-broken ribs.…”
Section: Introductionmentioning
confidence: 85%
“…To reduce flow velocity, the pressurized air then passes through a diffuser (2). After the diffuser, the air enters a settling chamber, which is a long tube with a length-to-width ratio of 1.5.…”
Section: Experimental Setup Detailsmentioning
confidence: 99%
“…Several convective cooling schemes for turbine blade cooling are reported in the archival literature. [2][3][4][5] Most of the investigations dealt with simplified geometries, such as flat or curved surface, [6][7][8][9] without considering the actual geometrical profile of the blade. In addition to the simplified geometries, researchers also use idealistic heat transfer boundary conditions, such as constant temperature or constant heat flux, at the target wall.…”
Section: Introductionmentioning
confidence: 99%
“…The thermal performance of the triangular channels where cooling is performed only by forced convection has been experimentally assessed in the published literature, both in stationary [6][7][8] and rotating conditions. [9][10][11] Local and averaged Nusselt number augmentation and friction coefficient distributions along the channel length for the smooth duct and several ribs configurations, both in terms of orientation and spacing, have been measured.…”
Section: Introductionmentioning
confidence: 99%