The „Poor man” MicroPIV – Adaptation of particle image velocimetry for microscale measurements

• Autorzy: Domagalski, P. , Karczemska, A. , Witkowski, D. , Tomczyk, M. , Pawlak, R.
• Konferencja: International Symposium on Compressor & Turbine Flow Systems Theory & Application Areas "SYMKOM" (11 ; 20-23.10.2014 ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

Particle Image Velocimetry (PIV) is a well-established measurement technique in area of fluid mechanics [1]. Its main idea is monitoring the displacement of tracer particles over time to obtain the flow’s velocity field. Although the technique is very flexible and widely used, it cannot be applied for flows in geometries of characteristic dimensions of order of millimeters or micrometers, which is often desired e.g. for visualization of the flow field between the centrifugal pump impeller and volute, in case of wall-slip flows in rheological investigations or generally in microfluidics area. In such scales the direct application of PIV is impossible due to technological issues: used in PIV lightning system – a light sheet used for slicing the investigated area will not work due to near-wall reflections, optical elements limited laser damage threshold and align problems. Therefore the light delivery system has to be completely redesigned, but as the other system components, data acquisition system and light source remain untouched, the adaptation of PIV system is possible in form of micro PIV [2,3]. In current work we would like to test the possibility of building such an adapter, aiming for costs minimization, therefore we decide to reduce the microPIV system, using the breadboard-mounted set of opto-mechanical elements instead of using fluorescent microscope.

Słowa kluczowe

PL

wizualizacja przepływu; pomiar prędkości; microPIV

EN

flow visualization; velocity measurement; microfluidics; PIV; microPIV

• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2014
• Tom: nr 145
• Strony: 35--36
• Opis fizyczny: Bibliogr. 3 poz.

Twórcy

autor

Domagalski, P.

• Process and Environmental Engineering Department Lodz University of Technology Wolczanska 213, 90-924 Lodz, Poland,

autor

Karczemska, A.

• Institute of Turbomachinery Lodz University of Technology Wolczanska 219/223, 90-924 Lodz, Poland

autor

Witkowski, D.

• Institute of Turbomachinery Lodz University of Technology Wolczanska 219/223, 90-924 Lodz, Poland

autor

Tomczyk, M.

• Institute of Electrical Engineering Systems Lodz University of Technology Stefanowskiego 18/22, 90-924 Lodz, Poland

autor

Pawlak, R.

• Institute of Electrical Engineering Systems Lodz University of Technology Stefanowskiego 18/22, 90-924 Lodz, Poland

Bibliografia

• [1] Adrian R.J.: Twenty years of particle image velocimetry. Experiments in fluids, 2005, 39(2), 159-169.
• [2] Błoński S., Domagalski P., Dziubiński M., & Kowalewski T.A.: Hydro-dynamically modified seeding for micro-PIV. Archives of Mechanics, 2011, 63(2), 163-182.
• [3] Mielnik M.M.: Micro-PIV and its application to some BioMEMS related microfluidic flows. Doctor engineer thesis, Department of Energy and Process Engineering Norwegian University of Science and Technology, Trondheim, Norway, 2003.