Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Unconditionally Stable Conformal LOD-FDTD Method For Curved PEC
  Objects and Its Application to EMC Problems   The traditional finite-difference time-domain (FDTD) method is constrained by
the Courant-Friedrich-Levy (CFL) condition and suffers from the notorious
staircase error in electromagnetic simulations. This paper proposes a
three-dimensional conformal locally-one-dimensional FDTD (CLOD-FDTD) method to
address the two issues for modeling perfectly electrical conducting (PEC)
objects. By considering the partially filled cells, the proposed CLOD-FDTD
method can significantly improve the accuracy compared with the traditional
LOD-FDTD method and the FDTD method. At the same time, the proposed method
preserves unconditional stability, which is analyzed and numerically validated
using the Von-Neuman method. Significant gains in Central Processing Unit (CPU)
time are achieved by using large time steps without sacrificing accuracy. Two
numerical examples include a PEC cylinder and a missile are used to verify its
accuracy and efficiency with different meshes and time steps. It can be found
from these examples, the CLOD-FDTD method show better accuracy and can improve
the efficiency compared with those of the traditional FDTD method and the
traditional LOD-FDTD method.

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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: econ
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The categories of this paper are: nucl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin