 | Experimental investigations of wet steam flow features in LP
steam turbines. Development of the methodology for the determination of LP turbine
efficiency based on traverse measurements in the space between blade rows and in the
exhaust hood; the method can be instrumental in evaluation of the effect of turbine
modernisations;
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| Further development of a
CFD code for solving 3D viscous compressible flow in turbomachinery geometries, including
tip leakage over unshrouded or shrouded rotor blade tips and windage flows. Validation of
the codes on real full-scale and model turbines;
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| CFD investigation of flow
phenomena in control valves, exhaust hoods, blading systems and labyrinth seals of large
power turbines;
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| CFD investigations of
flow in axial and centrifugal compressors;
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3D shaping of turbomachinery blades. Optimisation of the shape of
stator and rotor blades, including the conventional pitch/chord ratio and stagger angle
optimisation, as well as the choice of compound lean, sweep and twist parameters;
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| Analysis of
unsteady flow phenomena in turbine stages; theoretical and experimental investigations of
stator-rotor interaction, modelling vortex phenomena in flow past turbine blades or
aerodynamic bodies; evaluating geometric and dynamic characteristics of stator wake
vortices before and after passing the rotor cascade;
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Partial admission turbines. Control stage flow;
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Adaptive stage. Adaptive control LP turbines;
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Modelling of turbomachinery heat transfer;
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| Measurements,
computation, monitoring and thermal diagnostics of large power cycles, including
determination of measuring errors in heat and flow measurements of large power units;
investigations of the effect of modelling of cycle components onto the accuracy of cycle
computations; development of neural networks for computation and thermal diagnostics of
large power cycles; investigations of development trends in steam turbine and gas turbine
design onto the cycle performance and diagnostics;
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