Ostapenko А.О., Zhuravlyov М.A., Kurnat N.L. Effect of active electrode size and temperature on the kinematics of electrohydradynamic (ehd) flows

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Parent Category: Geo-Technical Mechanics, 2017

Category: Geo-Technical Mechanics, 2017, Issue 137

 

Geoteh. meh. 2017, 137, 117-123

EFFECT OF ACTIVE ELECTRODE SIZE AND TEMPERATURE ON THE KINEMATICS OF ELECTROHYDRADYNAMIC (EHD) FLOWS

¹Ostapenko А.О., ¹Zhuravlyov М.A., ¹Kurnat N.L.

¹SHEI «NMU»

UDC 537.84:533.3:538. 4

Abstract. There are several working models concerning the formation of EHD flows. In the context of every case, noncompensated (excessive) electric charge initiates the EHD flows. Active concentrator electrode is required for their origination. However, it is known that EHD flows are also available in homogenous electric fields. Objective of the studies was to assess the effect of different forms of electrodes on EHD flows. EHD flows have been analyzed and classified in the context of various electrode systems. Both areas and ion-molecular structural unit have been described. There are three areas of the major stream of the EHD flow: acceleration area, an area of stabilized velocity, and deceleration area. EHD flows are similar in terms of different electrode systems. TEHD model cannot describe the generation of volume charge. The experiments have shown that temperature gradient is not available within a zone of active electrode and EHD flows exist up to the freezing point of a liquid 

Keywords: a charge, EHD flow, fluid kinematics, excessive charge, dielectrics, ion-molecular structures, active electrode, central flow areas, acceleration area, deceleration area, similar flows.

 

REFERENCES

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About the authors

Ostapenko Anatoly Oleksijovych, Candidate of Physics and Mathematics (Phis-Math.), Associate Professor, Associate Professor of the Department of Physics, State Higher Educational Institution «National Mining University» ( SHEI NMU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Zhuravlyov Mykhaylo Oleksandrovych, Master of Science, Senior Lecturer of the Department of Physics, State Higher Educational Institution «National Mining University» (SHEI NMU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Kurnat Natalija Leonidivna, Master of Science, Senior Lecturer of the Department of Physics, State Higher Educational Institution «National Mining University» (SHEI NMU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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