title: Simulation of ion motion at atmospheric pressure: particle tracing versus electrokinetic flow.
abstract: Results obtained with two computational approaches for the simulation of ion motion at elevated pressure are compared with experimentally derived ion current data. The computational approaches used are charged particle tracings with the software package SIMION ver. 8 and finite element based calculations using the software package Comsol Multiphysics ver. 4.0/4.0a. The experimental setup consisted of a tubular corona discharge ion source coupled to a cylindrical measurement chamber held at atmospheric pressure. Generated ions are flown into the chamber at essentially subsonic laminar isothermal conditions. In the simulations, strictly stationary conditions were assumed. The results show very good agreement between the SIMION/SDS model and experimental data. For the Comsol model, only qualitative agreement is observed.
authors: Department of Physical and Theoretical Chemistry, University of Wuppertal, Gauss Str. 20, 42119 Wuppertal, Germany. wissdorf@uni-wuppertal.de
authors: Walter
authors: W
authors: Wissdorf
authors: Larissa
authors: L
authors: Pohler
authors: Sonja
authors: S
authors: Klee
authors: David
authors: D
authors: Müller
authors: Thorsten
authors: T
authors: Benter