Download or read book Particle in cell Simulations of the Lunar Wake written by Paul C. Birch and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Particle in cell Simulations of the Lunar Wake written by Paul Colin Birch and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fully Kinetic Particle in cell Simulations of Plasma surface dust Interactions for Lunar Exploration written by Jianxun Zhao and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The studies involving lunar surface explorations have drawn attentions in recent years. A better understanding of possible potential hazards to astronauts and electronic equipment has become a necessity for future lunar explorations. The lunar surface, lacking an atmosphere and global magnetic field therefore directly exposed to solar radiation and solar wind plasma, is electrically charged by the bombardment of solar wind plasma and emission/collection of photoelectrons. Additionally, lunar dust grains can also get charged and levitated from the surface under the influence of the electric field as well as gravity within the plasma sheath. Since the plasma sheath formed near the illuminated lunar surface is dominated by photoelectrons, it is usually referred to as 'photoelectron sheath'. In this research, we will focus on resolving the photoelectron sheath structure near lunar surface through numerical simulations. Firstly, we will introduce the fundamental assumptions of our analytic and simulation studies. We will present the derivation of a 1-D semi-analytic model to numerically obtain the quantities of interest as functions of the distance from surface within the photoelectron sheath. Secondly, we will present the numerical simulations with a fully kinetic Finite Difference (FD) Particle-in-Cell (PIC) code to solve the surface charging problem on lunar surface. In this study, we will consider both Maxwellian and Kappa distribution of solar wind electron velocities. Finally, we will show our current studies on the charged lunar dust lofting and transport under the influence of local electrostatic environment. We will consider both uncoupled and coupled method in the simulations. In uncoupled method, a steady state electric field is obtained through FD-PIC simulations and provided to simulate the charged dust transport, indicting that the charged dust transport does not influence the local electrostatic environment. Whereas in the coupled method, the electrostatic environment and the charged dust transport are simulated simultaneousness, which means the electrostatic environment and the dust transport influence each other during the simulations"--Abstract, page iii.

Download or read book Particle in cell Simulations of Particle Energization in the Auroral Region written by Kaijun Liu and published by . This book was released on 2007 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field and Plasma in the Lunar Wake written by Y. C. Whang and published by . This book was released on 1969 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Particle in Cell Simulation of Instabilities in Space and Astrophysical Plasmas written by John William Tonge and published by . This book was released on 2002 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Particle in Cell Simulations of Disruption written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An improved numerical particle simulation code has been developed to study the electrodynamical interaction of colliding electron and positron beams. Contrary to previously reported work (which was in error due to a coding mistake), it is found that the maximum enhancement in luminosity due to the mutual pinch effect can exceed a factor of 6 for beams with Gaussian radial profiles and approaches 5 for uniform profiles. These new results are in much better agreement with those originally found by R. Hollebeek.

Download or read book Moments in Particle in cell Simulations written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The moment equations that form the basis of the BEDLAM simulation code can also be used as a check on Particle-In-Cell (PIC) simulations. Moments can be computed as sums over the macroparticles used in the PIC simulations. These moments should satisfy the moment equations if the simulation is valid. A check has been done to sixth order for two cases: the RFQRZP code, which simulated a radio-frequency quadrupole (RFQ) linac, and the BEAMTRACE code, which simulated the final focusing system in a heavy ion fusion facility. Because our modified PIC codes were able to compute moments that satisfied the correct moment equations, we were able to use our modified version of RFQRZP, which we called RFQMOM, to work on another problem. Every moment simulation code has to include some truncation approximation. The error of this approximation can be determined by RFQMOM before actually writing the moment code. As an example, we investigated the accuracy of the truncation approximation that is used in the BEDLAM code. 6 refs., 4 figs.

Download or read book Magnetotails in the Solar System written by Andreas Keiling and published by John Wiley & Sons. This book was released on 2015-02-02 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: All magnetized planets in our solar system (Mercury, Earth, Jupiter, Saturn, Uranus, and Neptune) interact strongly with the solar wind and possess well developed magnetotails. It is not only the strongly magnetized planets that have magnetotails. Mars and Venus have no global intrinsic magnetic field, yet they possess induced magnetotails. Comets have magnetotails that are formed by the draping of the interplanetary magnetic field. In the case of planetary satellites (moons), the magnetotail refers to the wake region behind the satellite in the flow of either the solar wind or the magnetosphere of its parent planet. The largest magnetotail of all in our solar system is the heliotail, the “magnetotail” of the heliosphere. The variety of solar wind conditions, planetary rotation rates, ionospheric conductivity, and physical dimensions provide an outstanding opportunity to extend our understanding of the influence of these factors on magnetotail processes and structures. Volume highlights include: Discussion on why a magnetotail is a fundamental problem of magnetospheric physics Unique collection of tutorials on a large range of magnetotails in our solar system In-depth reviews comparing magnetotail processes at Earth with other magnetotail structures found throughout the heliosphere Collectively, Magnetotails in the Solar System brings together for the first time in one book a collection of tutorials and current developments addressing different types of magnetotails. As a result, this book should appeal to a broad community of space scientists, and it should also be of interest to astronomers who are looking at tail-like structures beyond our solar system.

Download or read book Particle in cell Simulations on Nonlinear Amplification Inverse Bremsstrahlung Electron Acceleration written by A. C. J. Paes and published by . This book was released on 1994 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Methods in Gyrokinetic Particle in cell Simulations written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Particle in cell Simulations of Intense Charged Particle Beam Transport written by David Vincent Rose and published by . This book was released on 1997 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Interpretation of Explorer 35 Plasma Measurements in the Near Lunar Wake written by George Leonard Siscoe and published by . This book was released on 1968 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The ARTEMIS Mission written by Christopher Russell and published by Springer Science & Business Media. This book was released on 2013-11-18 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ARTEMIS mission was initiated by skillfully moving the two outermost Earth-orbiting THEMIS spacecraft into lunar orbit to conduct unprecedented dual spacecraft observations of the lunar environment. ARTEMIS stands for Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun. Indeed, this volume discusses initial findings related to the Moon’s magnetic and plasma environments and the electrical conductivity of the lunar interior. This work is aimed at researchers and graduate students in both heliophysics and planetary physics. Originally published in Space Science Reviews, Vol. 165/1-4, 2011.

Download or read book New View of the Moon 2 written by Clive R Neal and published by Walter de Gruyter GmbH & Co KG. This book was released on 2024-05-06 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much has happened in the world in the 17 years since the first New Views of the Moon was published as volume 60 of the Mineralogical Society of America in 2006. An exciting new era of lunar exploration has begun, including the promise of resuming human lunar exploration, exploring the lunar Poles, and missions to many other high-priority science targets. It is fitting, therefore, to now summarize the current state of knowledge to the degree possible at a time when advancements in knowledge of the Moon are proceeding at a breakneck pace. Therefore, during this period of unprecedented lunar exploration activity, and as we continue to rebound from a global pandemic, we now happily announce this New Views of the Moon 2 volume summarizing the advances in lunar science and exploration since 2006. The Steering Committee is eternally grateful to all contributors and especially the chapter leads, and to Professor Makiko Ohtake (University of Aizu, Japan) and Dr. David Blewett (Johns Hopkins University Applied Physics Laboratory, U.S.A.) for organizing the New Views of the Moon 2 Electronic Annex. We deeply appreciate the hard work and dedication of everyone involved in the production of this volume, especially Rachel Russell and Ian Swainson at the Mineralogical Society of America. This volume helps to frame our knowledge and expectations for an exciting future of lunar science and exploration and the new discoveries to be made. Having humans return to the Moon now seems more likely than it ever has since the last humans left the Moon on 14 December 1972.

Download or read book A GeneralizedWeight Based Particle In Cell Simulation Scheme written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A generalized weight-based particle simulation scheme suitable for simulating magnetized plasmas, where the zeroth-order inhomogeneity is important, is presented. The scheme is an extension of the perturbative simulation schemes developed earlier for particle-in-cell (PIC) simulations. The new scheme is designed to simulate both the perturbed distribution ([delta]f) and the full distribution (full-F) within the same code. The development is based on the concept of multiscale expansion, which separates the scale lengths of the background inhomogeneity from those associated with the perturbed distributions. The potential advantage for such an arrangement is to minimize the particle noise by using [delta]f in the linear stage stage of the simulation, while retaining the flexibility of a full-F capability in the fully nonlinear stage of the development when signals associated with plasma turbulence are at a much higher level than those from the intrinsic particle noise.

Download or read book Fluctuations Noise and Numerical Methods in Gyrokintic Particle in cell Simulations written by Thomas G. Jenkins and published by . This book was released on 2007 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: