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Technical University
of Lodz
Faculty of Mechanical
Engineering
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DIVISION OF FLOW METROLOGY

The Division of Flow Metrology conducts research works in the field of flow measurements and automation of research processes, especially those related to thermodynamic and kinematic parameters of the steady and unsteady liquid stream.

The investigations are devoted to:

- improvement and development of measurement methods of pressure, temperature and velocity under steady and unsteady 1D, 2D and 3D flow conditions,

- calibration methods, test stands for automatic, multi-parameter static calibration of pneumatic and electric transducers of thermodynamic and kinematic parameters of the stream, an analytical description of static characteristics and employment of neuron networks during calibration procedures.

- identification and correction of dynamic properties of temperature transducers,

- distortions of the unsteady measurement signal in the pneumatic part of the electro-pneumatic measurement path,

- investigations of unsteady flow phenomena in:

§   straight and branched channels supplied in a pulsating way,

§   multistage machines, especially the clocking effect and determination of the optimal rotor-stator position to obtain the turbine maximum efficiency and to decrease the noise emitted,

§   radial compressors (measurements of time-variable pressures),

- measurements of the spatial noise field generated by turbomachinery to determine, e.g., a correlation between the clocking in blading and a decrease in the noise generated by the turbine,

- photooptical flow methods,

- automation of test stands to conduct ”online” tests,

- identification of the approaching surge in radial compressors,

- time-frequency analysis of signals obtained experimentally.

The Division of Flow Metrology is equipped with numerous unique test stands and measurement apparatus:

- an anechoic chamber with the volume of 386.5 m3 and the area more than 368 m2,

- automated test stands for static and dynamic calibration of transducers,

- a test stand for investigations of pulsating flows of the gas stream,

- a generator of unsteady pressures,

- Thermosystem and Dantec thermoanemometric multichannel apparatus with probes for velocity measurements in 1D, 2D and 3D flows,

- WaveBook, DaqBook, and Keithley data acquisition stations,

- Brüel & Kjær Pulse apparatus  for acoustic measurements,

- Scanivalve pressure commutators,

- specialist probes to measure time-variable pressure and velocity in liquid jets and in boundary layers,

- two wind tunnels to calibrate pneumatic and thermoanemometric probes,

- wind tunnel to test flat blade cascades.

 

Staff members of the Division of Flow Metrology

Aleksander Olczyk, DSc, PhD - Head

Prof. Dorota Kozanecka, DSc, PhD

Longin Horodko, DSc, PhD

Jarosław Błaszczak, PhD

Małgorzata Gizelska, PhD

Krzysztof Kantyka, PhD

Krzysztof Olasek, PhD

Tomasz Pałczyński, PhD

Michał Błaszczyk, PhD

Jarosław Skotowski

 

 

 
Institute of Turbomachinery  
90-924 Lodz, 219/223 Wolczanska str.
Tel. (48) (42) 631 23 64  Fax (48) (42) 636 13 83