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An investigation of hot spot location at turbine inlet – numerical simulations for factor project test rig

Flaszyński P., Piotrowicz M.

Transactions of the Institute of Fluid-Flow Machinery

2017

nr 135

101--115

The main objective of the presented paper is the investigation of a ﬂow structure and parameters distribution downstream of combustor simulator and its eﬀect on turbine inlet. The investigations are carried out by means of numerical simulations for combustor and turbine nozzle guide vane conﬁguration existing at test rig in DLR Goettingen. As the eﬀect, the hot spot location for diﬀerent relative positions of the swirler and nozzle guide vanes is shown. The presented results are obtained within a pre-test simulations supporting the ﬁnal design of the test section and they allow to draw conclusions for the required limiting cases investigated experimentally. The location of the hot spot is highly important for thermal loading of the ﬁrst stage rotor.