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Keywords: thermal stresses
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Journal Articles
Article Type: Research Papers
J. Turbomach. May 2020, 142(5): 051002.
Paper No: TURBO-19-1181
Published Online: April 8, 2020
...Elsiddig Elmukashfi; Alexander V. Murray; Peter T. Ireland; Alan C. F. Cocks In this study, thermal stresses in a double-wall cooling system are analyzed. We consider an infinite flat double-wall geometry and assume that it can be represented by an axisymmetric unit cell, wherein the thermal...
Journal Articles
Article Type: Research Papers
J. Turbomach. July 2010, 132(3): 031013.
Published Online: April 2, 2010
..., to evaluate the wall heat flux distribution, and to prevent hot gas ingestion. Issues of component reliability related to thermal stress require accurate modeling of the turbulence and unsteadiness of the flow field. To satisfy this accuracy requirement, a full 3D URANS simulation was carried out. A reduced...
Journal Articles
Article Type: Research Papers
J. Turbomach. April 2010, 132(2): 021013.
Published Online: January 13, 2010
... failure lifetime of the blade. This model requires both the temperature and thermal stress inside the blade, calculated by the CHT and FEA. The CHT method is validated on two test cases: a gas turbine rotor blade without cooling and one with five cooling channels evenly distributed along the camber line...
Journal Articles
Article Type: Technology Review
J. Turbomach. April 2007, 129(2): 193–201.
Published Online: July 16, 2006
... to be little discussed in a direct manner relevant to gas turbines. These include uniformity of internal cooling, ultimate film cooling, microcooling, reduced incident heat flux, secondary flows as prime cooling, contoured gas paths, thermal stress reduction, controlled cooling, low emission combustor-turbine...
Journal Articles
Article Type: Technical Papers
J. Turbomach. July 2005, 127(3): 635–645.
Published Online: January 14, 2005
... jets cooling velocity measurement Navier-Stokes equations gas turbines thermal stresses turbulence boundary layers bubbles Film cooling is the introduction of a secondary fluid (coolant or injected fluid) at one or more discrete locations along a surface exposed to a high-temperature...