Comparison of electrostatic and electromagnetic simulations for very high frequency plasmas

Zhang, Yu-Ru; Xu, Xiang; Zhao, Shu-Xia; Bogaerts, A.; Wang, You-Nian
November 2010
Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p113512
Academic Journal
A two-dimensional self-consistent fluid model combined with the full set of Maxwell equations is developed to investigate an argon capacitively coupled plasma, focusing on the electromagnetic effects on the discharge characteristics at various discharge conditions. The results indicate that there exist distinct differences in plasma characteristics calculated with the so-called electrostatic model (i.e., without taking into account the electromagnetic effects) and the electromagnetic model (which includes the electromagnetic effects), especially at very high frequencies. Indeed, when the excitation source is in the high frequency regime and the electromagnetic effects are taken into account, the plasma density increases significantly and meanwhile the ionization rate evolves to a very different distribution when the electromagnetic effects are dominant. Furthermore, the dependence of the plasma characteristics on the voltage and pressure is also investigated, at constant frequency. It is observed that when the voltage is low, the difference between these two models becomes more obvious than at higher voltages. As the pressure increases, the plasma density profiles obtained from the electromagnetic model smoothly shift from edge-peaked over uniform to a broad maximum in the center. In addition, the edge effect becomes less pronounced with increasing frequency and pressure, and the skin effect rather than the standing-wave effect becomes dominant when the voltage is high.


Related Articles

  • UEDGE simulation of edge plasmas in DIII-D double null configurations. Porter, G. D.; Petrie, T. W.; Rognlien, T. D.; Rensink, M. E. // Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p112501 

    Analysis of plasma flow in the edge of double null hybrid mode DIII-D plasmas is reported. The two dimension fluid plasma code UEDGE [T. Rognlien et al., J. Nucl. Mater. 196-198, 347 (1992)] is used for the analysis. The effect of impurity radiation from intrinsic carbon sputtered from plasma...

  • THE EARTH IN AN ELECTRIC SOLAR SYSTEM. Hissink, Louis A. G. // Energy & Environment;2009, Vol. 20 Issue 1/2, p161 

    Since Isaac Newton's time till the present, science has described the universe in terms of his laws of gravitation without explanation but since the development of the modern industrial age electrical engineers have also noted unexpected electromagnetic behaviour in the various engineered...

  • Kinetic Simulations of Nonequilibrium Plasmas. Likhanskii, Alexandre // AIP Conference Proceedings;5/20/2011, Vol. 1333 Issue 1, p1093 

    The paper presents study of one of the examples of nonequilibrium plasmas-dielectric barrier discharge in atmospheric air-using kinetic particle-in-cell code VORPAL. It has been demonstrated that the use of state-of-the-art methods for solution of the electrostatic problems and the concept of...

  • Current Sheet in a non-Maxwellian collisionless plasma: Self-consistent theory, simulation, and comparison with spacecraft observations. Malova, Kh. V.; Zelenyi, L. M.; Mingalev, O. V.; Mingalev, I. V.; Popov, V. Yu.; Artemyev, A. V.; Petrukovich, A. A. // Plasma Physics Reports;Oct2010, Vol. 36 Issue 10, p841 

    self-consistent theory is constructed of anisotropic current equilibria maintained in a non-Maxwellian plasma consisting of cold electrons and two hot ion components of different temperatures. The ion plasma components are described in the quasi-adiabatic approximation, and the plasma electrons,...

  • Coherent to turbulence transition, enhanced flow and confinement in a simple toroidal plasma. Goud, T. S.; Ganesh, R.; Saxena, Y. C.; Raju, D.; Sathyanarayana, K.; Mohandas, K. K.; Chavda, C. // Physics of Plasmas;Mar2012, Vol. 19 Issue 3, p032307 

    In a simple toroidal plasma, self consistent poloidal flow generation at different toroidal fields is observed. On changing the magnitude of toroidal field, transition occurs in the nature of fluctuation from highly coherent modes at low magnetic field to a turbulent broadband spectrum at high...

  • Simulations of one- and two-dimensional complex plasmas using a modular, object-oriented code. Jefferson, R. A.; Cianciosa, M.; Thomas, E. // Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p113704 

    In a complex plasma, charged microparticles ('dust') are added to a background of ions, electrons, and neutral particles. This dust fully interacts with the surrounding plasma and self-consistently alters the plasma environment leading to the emergence of new plasma behavior. Numerical tools...

  • Implications for the electron distribution from the stationary hydrodynamic model of a one-dimensional plasma expansion into vacuum. Kiefer, Thomas; Schlegel, Theodor // Physics of Plasmas;Oct2012, Vol. 19 Issue 10, p102101 

    It is shown that the hydrodynamic model of a one-dimensional collisionless plasma expansion is contained in the kinetic description as a special case. This belongs to a specific choice for the electron distribution function. Moreover, the consequences of the use of the hydrodynamic approach...

  • Simulation study of nanoparticle coating in a low pressure plasma reactor. Pourali, N.; Foroutan, G. // Physics of Plasmas;2015, Vol. 22 Issue 2, p1 

    A self-consistent combination of plasma fluid model, nanoparticle heating model, and surface deposition model is used to investigate the coating of nanosize particles by amorphous carbon layers in a low pressure plasma reactor. The numerical results show that, owing to the net heat release in...

  • The plasma drag and dust motion inside the magnetized sheath. Pandey, B. P.; Vladimirov, S. V.; Samarian, A. // Physics of Plasmas;May2011, Vol. 18 Issue 5, p053703 

    The motion of micron size dust inside the sheath in the presence of an oblique magnetic field is investigated by self-consistently calculating the charge and various forces acting on the dust. It is shown that the dust trajectory inside the sheath, which is like an Archimedean spiral swinging...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics