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Coupled CFD and Thermal Analysis of a Steam Turbine

	Posted Tue October 28, 2003 @09:11AM
	A SoftInWay application story details the steady state coupled fluid and solid thermal analysis of a steam turbine secondary flow path. Prediction of steam turbine rotor and stator thermal state is a complex problem that usually is divided into a set of interdependent problems related to steam flow, heat transfer and thermo-mechanical modeling. Some of most important modeling issues can be identified as follows: Turbine flow path heat transfer boundary conditions; Heat transfer boundary conditions related to the secondary part; Secondary steam flow including the flow in disk/diaphragm cavities and seals; Windage losses; Turbine rotor and stator thermal steady analysis; Seals radial/axial clearance optimization. The predicted thermal state shows a significant influence of secondary steam bleed flow on the temperature distribution of the rotor and stator.

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