A computational modeling study on the helium atmospheric pressure plasma needle discharge

Qian, Min; Yang, Cong-Ying; Liu, Sanqiu; Wang, Zhendong; Lv, Yan; Wang, Dezhen

doi:10.1088/1674-1056/24/12/125202

Cited by 5 publications

(2 citation statements)

References 33 publications

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“…More information about the governing equations and the boundary conditions for the neutral gas fluid and the plasma dynamic models can be found in Refs. [14] and [15] and references therein. The simulation domain extends to a radial distance of 2.3 mm from the symmetry axis.…”

Section: Model Descriptionmentioning

confidence: 99%

Numerical study of the effect of water content on OH production in a pulsed-dc atmospheric pressure helium–air plasma jet

et al. 2016

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A numerical study of the effect of water content on OH production in a pulsed-dc atmospheric pressure helium-air plasma jet is presented. The generation and loss mechanisms of the OH radicals in a positive half-cycle of the applied voltage are studied and discussed. It is found that the peak OH density increases with water content in air (varying from 0% to 1%) and reaches 6.3×10 18 m −3 when the water content is 1%. Besides, as the water content increases from 0.01% to 1%, the space-averaged reaction rate of three-body recombination increases dramatically and is comparable to those of main OH generation reactions.

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Section: Model Descriptionmentioning

confidence: 99%

Numerical study of the effect of water content on OH production in a pulsed-dc atmospheric pressure helium–air plasma jet

et al. 2016

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“…Qian Kailu,et,al [24] , extruded the purified cadmium into filaments sample( the diameter of the sample is in millimeter scale), according to the concentration of vacancies after quenching will decrease, the decrease in vacancy concentration will lead to change in this sample volume. He used micro elongation apparatus of the reflected light with a resolution of 0.05µm, tested the change of the length of the sample after quenching.…”

Section: Experimental Direct Determination Of the Vacancy Formation E...mentioning

confidence: 99%

Recent Development of Vacancy Formation Energy

Zhan

Rong

et al. 2013

AMM

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Vacancies of the crystal is one of the core issues in solid physics, solid state chemistry, metallurgy and materials science. In this paper, we present the latest research on the vacancy formation energy and size dependence of vacancy formation energy. According to the vacancy formation energy of common methods and common description of the vacancy formation energy theory, the vcancy formation energy characterization, calculation and simulation methods are described; the nature and origin of the vacancy in nanoscale is analyzed. finally, further research will focus on the properties mechanisms of the other physical properties, mechanical properties and thermodynamic in materials.

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Investigation on the effects of the operating conditions on electron energy in the atmospheric-pressure helium plasma jet

et al. 2019

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This work presents a numerical investigation on the effects of the operating conditions on electron energy in the atmospheric-pressure helium plasma jets based on a needle-plane discharge system. The investigation is carried out by using a 2-D fluid model. The considered operating conditions refer to the needle radius, the gap width, and both the inner diameter and the relative permittivity of the dielectric tube. The mechanisms governing the operating condition effects of electron energy have also been analyzed in detail. This work gives the following significant results. The needle radius has only a slight effect on the averaged electron energy whether in the entire plasma jet or in the plasma bullet. The averaged electron energy decreases obviously with the increase in the gap width. The effect of the dielectric tube on electron energy becomes evident only when its inner diameter is smaller than 4 mm in the present simulation. The relative permittivity of the dielectric tube slightly affects electron energy. In particular, the present work shows that the plasma bullet has a substantial contribution to high-energy electrons in contrast to the other region in the plasma jet. This is of importance for the study on the mass transfer of the reactive species in the aqueous solutions in plasma biomedicine because in the mass transfer, the penetration depth of the reactive species can be improved via the dissociative electron attachment to water molecules when increasing the electron energy in plasmas, which helps deliver the reactive species to the surface of living matter and even into its interior for inducing the expected biomedical effects.

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A computational modeling study on the helium atmospheric pressure plasma needle discharge

Abstract: A computational modeling study on the helium atmospheric pressure plasma needle discharge * Qian Mu-Yang(钱沐杨) a) † , Yang Cong-Ying(杨从影) b) , Liu San-Qiu(刘三秋) a) , Wang Zhen-Dong(王震东) a) , Lv Yan(吕燕) a) , and Wang De-Zhen(王德真) c) a)

Cited by 5 publications

References 33 publications

Numerical study of the effect of water content on OH production in a pulsed-dc atmospheric pressure helium–air plasma jet

Numerical study of the effect of water content on OH production in a pulsed-dc atmospheric pressure helium–air plasma jet

Recent Development of Vacancy Formation Energy

Investigation on the effects of the operating conditions on electron energy in the atmospheric-pressure helium plasma jet

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A computational modeling study on the helium atmospheric pressure plasma needle discharge

Abstract: A computational modeling study on the helium atmospheric pressure plasma needle discharge * Qian Mu-Yang(钱沐杨) a) † , Yang Cong-Ying(杨从影) b) , Liu San-Qiu(刘三秋) a) , Wang Zhen-Dong(王震东) a) , Lv Yan(吕 燕) a) , and Wang De-Zhen(王德真) c) a)

Cited by 5 publications

References 33 publications

Numerical study of the effect of water content on OH production in a pulsed-dc atmospheric pressure helium–air plasma jet

Numerical study of the effect of water content on OH production in a pulsed-dc atmospheric pressure helium–air plasma jet

Recent Development of Vacancy Formation Energy

Investigation on the effects of the operating conditions on electron energy in the atmospheric-pressure helium plasma jet

Contact Info

Product

Resources

About

Abstract: A computational modeling study on the helium atmospheric pressure plasma needle discharge * Qian Mu-Yang(钱沐杨) a) † , Yang Cong-Ying(杨从影) b) , Liu San-Qiu(刘三秋) a) , Wang Zhen-Dong(王震东) a) , Lv Yan(吕燕) a) , and Wang De-Zhen(王德真) c) a)