IGTC-10 Experimental Investigation of Three-Dimensional Unsteady Flow Downstream the Rotor in a 1-1/2 Stage Turbine(Session A-4 THREE DIMENSIONAL FLOW II)

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概要

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• Detailed measurements have been carried out to investigate in particular the development of the rotor wakes and vortices, entering, passing and leaving the second stator. Pneumatic measurements in the axial gaps behind all blade rows provided information about the steady flow behaviour. Hot-wire measurements have been performed to acquire the time dependent three-dimensional velocity vector behind the rotor, in the passage of the second stator and behind the second stator. This paper concentrates on the rotor exit flow and its time dependent influence on the flow in and behind the second stator. Typical passage vortices dominate the rotor exit flow in the relative and absolute frame. It will be shown how vortices leaving the rotor develop in the passage of the second stator. Second stator exit flow clearly shows strong rotor influence which leads to highly three-dimensional unsteady effects. Results will be discussed mainly from figures showing time dependent secondary flow.

• 公益社団法人日本ガスタービン学会の論文

著者

• Gallus H.e.

  University Of Technology Rwth Aachen

• Walraevens R.E.

  University of Technology RWTH Aachen

関連論文

• IGTC-10 Experimental Investigation of Three-Dimensional Unsteady Flow Downstream the Rotor in a 1-1/2 Stage Turbine(Session A-4 THREE DIMENSIONAL FLOW II)

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