Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Experimental Investigation of Plate Cooling by Ionic Wind from a Needle Electrode. / Elagin, I. A.; Markovskii, P. Yu; Stishkov, Yu K.
в: Technical Physics, Том 65, № 4, 01.04.2020, стр. 542-547.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Experimental Investigation of Plate Cooling by Ionic Wind from a Needle Electrode
AU - Elagin, I. A.
AU - Markovskii, P. Yu
AU - Stishkov, Yu K.
N1 - Funding Information: The experiments were performed on the equipment of the Geomodel and Optical and Laser Methods of Investigation of Matter research centers of the St. Petersburg State University. Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - We have investigated experimentally the cooling of a heated plate playing the role of a grounded electrode by a narrow intense ionic wind jet produced by a needle electrode and directed along the normal at the plate center. For a fixed average temperature of the heater, we have obtained the dependence of the heat power removed with the wind on the electric power spent for sustaining the corona discharge for various interelectrode distances and voltages. It is shown that a small ionic wind jet can effectively cool a massive plate, removing up to 23 W of heat power for a spent electric power of up to 0.7 W. We have also studied experimentally the structure of ionic wind in the electrode system considered. A laser anemometry setup was used for visualizing the flow and for obtaining velocity distributions. The velocities in the central jet of ionic wind reached 8-9 m/s. The jet was narrower and faster for the positive polarity of the corona discharge. However, the efficiency of cooling for positive and negative polarities was approximately the same.
AB - We have investigated experimentally the cooling of a heated plate playing the role of a grounded electrode by a narrow intense ionic wind jet produced by a needle electrode and directed along the normal at the plate center. For a fixed average temperature of the heater, we have obtained the dependence of the heat power removed with the wind on the electric power spent for sustaining the corona discharge for various interelectrode distances and voltages. It is shown that a small ionic wind jet can effectively cool a massive plate, removing up to 23 W of heat power for a spent electric power of up to 0.7 W. We have also studied experimentally the structure of ionic wind in the electrode system considered. A laser anemometry setup was used for visualizing the flow and for obtaining velocity distributions. The velocities in the central jet of ionic wind reached 8-9 m/s. The jet was narrower and faster for the positive polarity of the corona discharge. However, the efficiency of cooling for positive and negative polarities was approximately the same.
KW - WIRE
KW - SIMULATION
UR - http://www.scopus.com/inward/record.url?scp=85083998570&partnerID=8YFLogxK
U2 - 10.1134/S1063784220040052
DO - 10.1134/S1063784220040052
M3 - Article
AN - SCOPUS:85083998570
VL - 65
SP - 542
EP - 547
JO - Technical Physics
JF - Technical Physics
SN - 1063-7842
IS - 4
ER -
ID: 69988821