Abstract
The article is devoted to issues related to the occurrence of noise and vibration in the centrifugal turbine of ventilation equipment of residential buildings. Airflow in the rotating radial-axial channel representing a simplified configuration of the inter-blade channel of a centrifugal turbine is studied. Numerical simulation of the airflow in the considered geometrical domain is performed using ANSYS CFX solver. A particular attention is given to different turbulence closures used in the model. Accuracy of the simulation results was estimated with respect to the laboratory measurements by J. Moore [9]. The comparison was carried out for velocity profiles measured at three different cross-sections of the channel under different mass flow rates.
Original language | English |
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Pages (from-to) | 139-151 |
Number of pages | 13 |
Journal | Akustika |
Volume | 41 |
DOIs | |
State | Published - Nov 2021 |
Keywords
- ANSYS CFX
- Inter-blade channel
- Interscapular space
- Microturbine
- Noise
- Turbulence models
- Vibration