Strong electric field applied between the two electrodes initiates a corona discharge, which results in ionization of gas molecules and induces ionic wind, also known as the electrohydrodynamic (EHD) flow. If an electric field is asymmetric, then a unidirectional gas flow can be formed causing so-called EHD gas pumping. In spite of many experiments with different electrode shapes and configurations such as needle-to-mesh, needle-to-ring, wire-to-rod, wire-to-non-parallel plates, etc., aimed at production of intensive gas pumping, the investigated EHD pumps were most often unsatisfactory. In our research, we proposed a new configuration of electrodes for the EHD pump, where all electrodes (excluding the first one and the last one) are simultaneously the discharge (on one side) and the collecting (on the other side) electrodes. Our electrodes configuration can be easily multiplied without additional space between consecutive electrodes. In such a case, a high ratio of pumping efficiency to pump size can be obtained. The Time-Resolved Particle Image Velocimetry technique was used to investigate the EHD flow generated by our EHD pump.
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January 2019
Research-Article
Electrohydrodynamic Pump Supplied by Unipolar Direct Current Voltage With Both Positive and Negative Corona Discharge
Janusz Podliński,
Janusz Podliński
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Fiszera 14,
Gdańsk 80-231, Poland
e-mail: janusz@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14,
Gdańsk 80-231, Poland
e-mail: janusz@imp.gda.pl
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Magdalena Danowska,
Magdalena Danowska
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Gdańsk 80-231, Poland
e-mail: mdanowska@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14
,Gdańsk 80-231, Poland
e-mail: mdanowska@imp.gda.pl
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Tomasz Izdebski,
Tomasz Izdebski
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Gdańsk 80-231, Poland
e-mail: tomasz.izdebski@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14
,Gdańsk 80-231, Poland
e-mail: tomasz.izdebski@imp.gda.pl
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Mirosław Dors
Mirosław Dors
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Gdańsk 80-231, Poland
e-mail: mdors@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14
,Gdańsk 80-231, Poland
e-mail: mdors@imp.gda.pl
Search for other works by this author on:
Janusz Podliński
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Fiszera 14,
Gdańsk 80-231, Poland
e-mail: janusz@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14,
Gdańsk 80-231, Poland
e-mail: janusz@imp.gda.pl
Magdalena Danowska
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Gdańsk 80-231, Poland
e-mail: mdanowska@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14
,Gdańsk 80-231, Poland
e-mail: mdanowska@imp.gda.pl
Tomasz Izdebski
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Gdańsk 80-231, Poland
e-mail: tomasz.izdebski@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14
,Gdańsk 80-231, Poland
e-mail: tomasz.izdebski@imp.gda.pl
Mirosław Dors
Institute of Fluid Flow Machinery,
Polish Academy of Sciences,
Gdańsk 80-231, Poland
e-mail: mdors@imp.gda.pl
Polish Academy of Sciences,
Fiszera 14
,Gdańsk 80-231, Poland
e-mail: mdors@imp.gda.pl
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received July 10, 2017; final manuscript received July 12, 2018; published online August 16, 2018. Assoc. Editor: Bart van Esch.
J. Fluids Eng. Jan 2019, 141(1): 011206 (8 pages)
Published Online: August 16, 2018
Article history
Received:
July 10, 2017
Revised:
July 12, 2018
Citation
Podliński, J., Danowska, M., Izdebski, T., and Dors, M. (August 16, 2018). "Electrohydrodynamic Pump Supplied by Unipolar Direct Current Voltage With Both Positive and Negative Corona Discharge." ASME. J. Fluids Eng. January 2019; 141(1): 011206. https://doi.org/10.1115/1.4040971
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