The T-matrix code Tsym for homogeneous dielectric particles with finite symmetries
Artikel i vetenskaplig tidskrift, 2013

A T-matrix code tailored to non-axisymmetric particles with finite symmetries is described. The code exploits geometric symmetries of particles by use of group theoretical methods. Commutation relations of the T-matrix are implemented for reducing CPU-time requirements. Irreducible representations of finite groups are employed for alleviating ill-conditioning problems in numerical computations. Further, an iterative T-matrix method for particles with small-scale surface perturbations is implemented. The code can compute both differential and integrated optical properties of particles in,either fixed or random orientation. Methods for testing the convergence and correctness of the computational results are discussed. The package also includes a database of pre-computed group-character tables, as well as an interface to the GAP programming language for computational group theory.

Cosmic dust

light-scattering

radiative-transfer

nonspherical particles

optics approximation

electromagnetic scattering

Ice clouds

computations

Mineral dust

T-matrix

vector

model

vdisort

formulation

Scattering

Författare

Michael Kahnert

Chalmers, Rymd- och geovetenskap, Global miljömätteknik och modellering

Journal of Quantitative Spectroscopy and Radiative Transfer

0022-4073 (ISSN)

Vol. 123 62-78

Aerosolpartiklarnas direkta klimatpåverkan i global jordsystemmodellering

Vetenskapsrådet (VR), 2011-10-26 -- 2014-10-26.

Ämneskategorier

Analytisk kemi

DOI

10.1016/j.jqsrt.2012.12.019

Mer information

Skapat

2017-10-06