https://doi.org/10.26089/NumMet.v27r211

Coupled numerical modeling of gas-dynamic and electromagnetic processes in an inductively coupled plasma spectrometer torch

Authors

  • Anton S. Melnikov
  • Albert Kh. Gilmudtinov

Keywords:

numerical simulation
inductively coupled plasma
gas dynamics
turbulent flow
Fassel torch
analytical spectrometry
magnetic vector potential

Abstract

The study presents a coupled approach to three-dimensional numerical modeling of inductively coupled plasma in a spectrometer torch, based on the simultaneous solution of hydrodynamics and electrodynamics problems. For this purpose, a user-defined module was developed in the ANSYS Fluent software environment, which calculates electromagnetic fields in terms of magnetic and electric potentials and couples them with hydrodynamics and heat transfer equations. The electromagnetic module algorithm was verified on a test problem, demonstrating agreement with the analytical solution with an error of less than 2%. Analysis of the simulation results revealed the influence of tangential gas supply and electromagnetic forces on the formation of a spatially inhomogeneous structure of the plasma torch and identified the mechanism of reverse vortex flows. The observed effects demonstrate qualitative agreement with experimental data. The developed computational module opens up opportunities for targeted optimization of the design and operational parameters of plasma torches used in analytical chemistry and materials science.


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Published

2026-04-16

Issue

Vol. 27 (2026): Issue 2.

Section

Methods and algorithms of computational mathematics and their applications

Authors

Anton S. Melnikov

Kazan National Research Technical University named after A. N. Tupolev (KAI)

• Lead Engineer

Albert Kh. Gilmudtinov

Kazan National Research Technical University named after A. N. Tupolev (KAI)

• Professor, Head of Department

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