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