Turbomachinery Fluid Dynamics
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:
Centrifugal compressors and turbines (design, optimizations)
Axial compressors and turbines (design, optimizations)
Two stage centrifugal compressor (return channel design)
Two stage axial-radial compressor (optimizations)
FSI analyses (self-excitation, stresses etc.)
CFD analyses of specific problems, e.g. blowby, casing treatment etc.
Central housing fluid flow - heat transfers, lubricant foaming etc.
Publications
VACULA, J. and P. NOVOTNY. An Overview of flow instabilities occurring in centrifugal compressors operating at low flow rates. Journal of Engineering for Gas Turbines and Power. 2021
VACULA, J.; NOVOTNÝ, P. Identification of Aerodynamic Tonal Noise Sources of a Centrifugal Compressor of a Turbocharger for Large Stationary Engines. Applied Sciences - Basel, 2023, roč. 13, č. 10, s. 1-20. ISSN: 2076-3417.
VACULA, J.; NOVOTNÝ, P. Critical pressure in liquids due to dynamic choking. PHYSICAL REVIEW E, 2022, roč. 105, č. 4, s. 1-10. ISSN: 2470-0045.
KUDLÁČEK, P.; NOVOTNÝ, P.; VACULA, J.; KOCMAN, F. Investigating the Effect of Rotor Design Changes on Mechanical Losses Due to Rotor-Fluid Interaction. Journal of Mechanical Engineering - Strojnícky časopis, 2022, roč. 72, č. 03, s. 71-80. ISSN: 2450-5471.
Key Partners
Contact:
prof. Ing. Pavel Novotný, Ph.D.
Projects:
Main Results
Dissertation topics:
Computational modelling of the dynamics of a turbocharger rotor with air bearings
Heat transfer in a turbocharger rotor system during fast transients