Fundamentals of plasma simulation |
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Authors: | David W Forslund |
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Institution: | (1) Applied Theoretical Physics Los Alamos National Laboratory, 87545 Los Alamos, New Mexico |
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Abstract: | With the increasing size and speed of modern supercomputers, the incredibly complex nonlinear properties of plasmas in the
laboratory and in space are being successfully explored in increasing depth. Of particular importance have been numerical
simulation techniques involving finite size particles on a discrete mesh. After discussing the importance of this means of
understanding a variety of nonlinear plasma phenomena, we describe the basic elements of particle-in-cell simulation and their
limitations and advantages. The differencing techniques, stability and accuracy issues, data management and optimization issues
are discussed by a simple example of a particle-in-cell code. Recent advances in simulation methods allowing large space and
time scales to be treated with minimal sacrifice in physics are reviewed. Various examples of nonlinear processes successfully
studied by plasma simulation are given. |
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Keywords: | |
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