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@article{1661956, author = {Potočňáková, Lucia and Synek, Petr and Hoder, Tomáš}, article_location = {College Park}, article_number = {6}, doi = {http://dx.doi.org/10.1103/PhysRevE.101.063201}, keywords = {viscous droplet; nonthermal plasma; Hele-Shaw cell; instability}, language = {eng}, issn = {2470-0045}, journal = {Physical Review E}, title = {Viscous droplet in nonthermal plasma: Instability, fingering process, and droplet fragmentation}, url = {https://journals.aps.org/pre/abstract/10.1103/PhysRevE.101.063201}, volume = {101}, year = {2020} }
TY - JOUR ID - 1661956 AU - Potočňáková, Lucia - Synek, Petr - Hoder, Tomáš PY - 2020 TI - Viscous droplet in nonthermal plasma: Instability, fingering process, and droplet fragmentation JF - Physical Review E VL - 101 IS - 6 SP - 1-15 EP - 1-15 PB - APS SN - 24700045 KW - viscous droplet KW - nonthermal plasma KW - Hele-Shaw cell KW - instability UR - https://journals.aps.org/pre/abstract/10.1103/PhysRevE.101.063201 L2 - https://journals.aps.org/pre/abstract/10.1103/PhysRevE.101.063201 N2 - The interaction of dielectric barrier discharge plasma and silicone-oil liquid droplet in a Hele-Shaw cell was investigated experimentally employing synchronized optical and electrical time-resolved measurements. Temporal development of the destabilization, stretching, and fragmentation of the plasma-liquid interface was studied for the whole event lifespan. The perturbation wavelength and temporal development of fingering speed, plasma-liquid interface length, mean transferred charge, and fractal dimension of the pattern were determined. Recorded changes in the dissipated mean power show a strong correlation to subsequent stretching of the interface, opening new methodological possibilities for future investigations. Our extensive parametric study shows that oil viscosity and applied voltage amplitude both have a significant impact on the interface evolution. Notably, at relatively high voltages the destabilized interface featured properties noticeably diverging from the theoretical prediction of a known model. We propose an explanation based on the change of the liquid viscosity with increased heating at high applied voltage amplitudes. ER -
POTOČŇÁKOVÁ, Lucia, Petr SYNEK a Tomáš HODER. Viscous droplet in nonthermal plasma: Instability, fingering process, and droplet fragmentation. \textit{Physical Review E}. College Park: APS, 2020, roč.~101, č.~6, s.~1-15. ISSN~2470-0045. Dostupné z: https://dx.doi.org/10.1103/PhysRevE.101.063201.
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