UNIPIC code for simulations of high power microwave devices

Jianguo Wang; Dianhui Zhang; Chunliang Liu; Yongdong Li; Yue Wang; Hongguang Wang; Hailiang Qiao; Xiaoze Li
March 2009
Physics of Plasmas;Mar2009, Vol. 16 Issue 3, p033108
Academic Journal
In this paper, UNIPIC code, a new member in the family of fully electromagnetic particle-in-cell (PIC) codes for simulations of high power microwave (HPM) generation, is introduced. In the UNIPIC code, the electromagnetic fields are updated using the second-order, finite-difference time-domain (FDTD) method, and the particles are moved using the relativistic Newton–Lorentz force equation. The convolutional perfectly matched layer method is used to truncate the open boundaries of HPM devices. To model curved surfaces and avoid the time step reduction in the conformal-path FDTD method, CP weakly conditional-stable FDTD (WCS FDTD) method which combines the WCS FDTD and CP-FDTD methods, is implemented. UNIPIC is two-and-a-half dimensional, is written in the object-oriented C++ language, and can be run on a variety of platforms including WINDOWS, LINUX, and UNIX. Users can use the graphical user’s interface to create the geometric structures of the simulated HPM devices, or input the old structures created before. Numerical experiments on some typical HPM devices by using the UNIPIC code are given. The results are compared to those obtained from some well-known PIC codes, which agree well with each other.


Related Articles

  • Large eddy simulations of targeted electromagnetic control of buoyancy-driven turbulent flow in a slender enclosure. Kenjere�, Sa�a // Theoretical & Computational Fluid Dynamics;Nov2009, Vol. 23 Issue 6, p471 

    We conducted a large eddy simulation (LES) of a locally applied electromagnetic control of turbulent thermal convection of an electrically conductive fluid (electrolyte solution) inside of a slender enclosure. Generic configurations, consisting of two or three magnets of opposite polarities...

  • Bell’s theory with no locality assumption. Tresser, C. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Aug2010, Vol. 58 Issue 3, p385 

    We prove versions of the Bell and the GHZ theorems that do not assume locality but only the effect after cause principle (EACP) according to which for any Lorentz observer the value of an observable cannot change because of an event that happens after the observable is measured. We show that the...

  • Equations of motion of a relativistic charged particle with curvature dependent actions. Arreaga-García, Guillermo; Saucedo Morales, Julio // Palestine Journal of Mathematics;2014, Vol. 3 Issue 2, p218 

    We present an introduction to the study of a relativistic particle moving under the influence of its own Frenet-Serret curvatures. With the aim of introducing the notation and conventions used in this paper, we first recall the action of a relativistic particle. We then suggest a mathematical...

  • Motion Planning of Solid-Liquid Interfaces in Crystal Growth Processes. Hinze, Michael; Ziegenbalg, Stefan // AIP Conference Proceedings;9/9/2009, Vol. 1168 Issue 1, p1055 

    We present an optimal control approach for the solidification process of a melt in a container. The process is described by a two phase Stefan problem including flow driven by convection and Lorentz forces. The free boundary (interface between the two phases) is modelled as a graph. We control...

  • Accurately and Efficiently Studying the RF Structures Using a Conformal Finite-Difference Time-Domain Particle-in-Cell Method. Lin, M. C.; Nieter, C.; Stoltz, P. H.; Smithe, D. N. // Open Plasma Physics Journal;2010 Special Issue, p48 

    This work introduces a conformal finite difference time domain (CFDTD) particle-in-cell (PIC) method to accurately and efficiently study electromagnetic or radio frequency (RF) structures and their interactions with charged particles. For illustration, the dispersion relation of an A6...

  • Half-Cell RF Gun Simulations with the Electromagnetic Particle-in-Cell Code VORPAL. Paul, K.; Dimitrov, D. A.; Busby, R.; Bruhwiler, D. L.; Smithe, D.; Cary, J. R.; Kewisch, J.; Kayran, D.; Calaga, R.; Ben-Zvi, I. // AIP Conference Proceedings;1/22/2008, Vol. 1086 Issue 1, p334 

    We have simulated Brookhaven National Laboratory’s half-cell superconducting RF gun design for a proposed high-current ERL using the three-dimensional, electromagnetic particle-in-cell code VORPAL. VORPAL computes the fully self-consistent electromagnetic fields produced by the electron...

  • Simulation of mode conversion process from upper-hybrid waves to LO-mode waves in the vicinity of the plasmapause. Kalaee, M. J.; Katoh, Y.; Kumamoto, A.; Ono, T.; Nishimura, Y. // Annales Geophysicae (09927689);Jun2010, Vol. 28 Issue 6, p1289 

    In order to clarify the role of the mode conversion process in the generation mechanism of LO-mode waves in the equatorial region of the plasmasphere, we have investigated the linear mode conversion process among upper-hybrid-resonance (UHR)-mode, Z-mode and LOmode waves by a numerical...

  • Computer Simulation of Nano Metallic-Particle Synthesis in an Advanced RF Inductively Coupled Plasma. Shigeta, Masaya; Nishiyama, Hideya // AIP Conference Proceedings;2004, Vol. 708 Issue 1, p174 

    In the present study, the thermofluid field and the electromagnetic field of an advanced RF inductively coupled plasma, which is expected to be utilized for nano metallic-particle synthesis, are investigated. The influence of the operating conditions on the mechanism of the nano...

  • Electromagnetic Response Functions of Few-Nucleon Systems. Efros, V. D.; Leidemann, W.; Orlandini, G. // Physics of Atomic Nuclei;Mar2001, Vol. 64 Issue 3, p482 

    Inclusive electromagnetic reactions in few-nucleon systems are studied based on accurate three- and four-body calculations. The longitudinal [sup 4]He(e, e') response function in the q range of 300-600 MeV/c; the [sup 4]He spectral function; the corresponding quasielastic [sup 4]He(e, e')...


Read the Article


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

Try another library?
Sign out of this library

Other Topics