Experimental study of radial temperature gradient-reducing devices in GTE rotor disks |
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Authors: | N N Salov A A Kharchenko V M Bubentsov |
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Institution: | (1) Berlin, Germany;(2) Behr GmbH & Co. KG, Stuttgart, Germany |
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Abstract: | In this paper, we examine experimentally some devices the principle of action of which is based on using the dynamic pressure
of air extracted to engine cooling and which are meant for reducing the radial temperature gradient in GTE rotor disks. We
established that the devices equipped with the ejector channels make it possible to accelerate the process of the disk hub
heating by hot air suction from the cavity periphery towards the rotor axis of rotation. Using the data of visualization studies,
we show the possibility for efficient operation of ejector devices in the conditions of real GTE rotor circumferential velocities. |
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