Turbomachinery

Aim of the Research

The research objective is to improve the performance of rotary machines in the field of turbomachinery. Our research covers a wide range of applications in turbomachinery:

• Turbomachinery rotordynamics (turbochargers, e-motors, compressors, hybrid machines)

• Bearings and lubrication systems (oil hydrodynamic bearings, aerodynamic bearings, air-foil bearings, rolling bearings)

• Seal systems (gas blow-by, labyrinth seal, flouting piston rings)

• Particle transport in turbomachinery (compressor fouling, particle transport through seal systems)

• Centrifugal compressors and turbines (compressor aerodynamics, shape optimizations)

• Axial compressors and turbines (design, optimizations)

• FSI analyses (self-excitation, stresses etc.)

• General CFD analyses of specific problems in turbomachinery (blowby, casing treatment, central housing fluid flows, heat transfers, lubricant foaming etc.)

Contact:

prof. Ing. Pavel Novotný, Ph.D. 

Contributions to the technical community:

• 50+ publications in the most cited international journals in the Web of Science database

• 100+ presentations at international conferences and forums

• 40+ results of applied research (prototypes, software and others)

• Transfer of research results into the teaching of Masters and PhD students

• Technical training courses in the fields of rotordynamics, bearings, sealing and lubrication systems, NVH, FEM, CFD for those interested in technical practice

Key Partners

Projects

1. Božek Vehicle Engineering National Center of Competence (ongoing)

2. Energy-saving bearings for high-speed turbochargers (ongoing)

3. Innovative technologies for smart low-emission mobility (ongoing)

Dissertation topics

1. Computational modelling of the dynamics of a turbocharger rotor with air bearings 

2. Heat transfer in a turbocharger rotor system during fast transients 

3. Influencing the acoustic and operating parameters of a centrifugal compressor by geometric modifications of the stator