title: Ð§Ð¸ÑÐ»ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÐµÑÐµÐ½Ð¾ÑÐ° Ð¸Ð¾Ð½Ð¾Ð² Ð² Ð´ÑÐµÐ¹ÑÐ¾Ð²Ð¾Ð¼ Ð¼Ð°ÑÑ-ÑÐ¿ÐµÐºÑÑÐ¾Ð¼ÐµÑÑÐµ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¾Ð´Ð½Ð¾Ð¼ÐµÑÐ½ÑÑ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½ÑÑ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ð¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Numerical simulation of ion transport in a drift mass spectrometer based on one-dimensional differential equations
Creators: name: ÐÐ´Ð¸Ð°ÑÑÐ»Ð»Ð¸Ð½, ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÑÐ»ÐµÐºÑÑÐ¾Ð³Ð°Ð·Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ°
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Ð¾Ð´Ð½Ð¾Ð¼ÐµÑÐ½Ð°Ñ Ð¿Ð¾ÑÑÐ°Ð½Ð¾Ð²ÐºÐ°
Ð¿ÐµÑÐµÐ½Ð¾Ñ Ð¸Ð¾Ð½Ð¾Ð² Ð²Ð¾Ð·Ð´ÑÑ Ð° Ð¸ Ð¿ÑÐ¾Ð±Ñ Ð¿Ð¾ÑÐ¾ÐºÐ¾Ð¼ Ð³Ð°Ð·Ð°
electrogasdynamics
drift mass spectrometer
one-dimensional problem
transfer of air ions and sample ions by a gas flow

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description: A subject of the graduate qualification work is âNumerical simulation of ion transport in a drift mass spectrometer based on one-dimensional differential equationsâ. The paper considers a mathematical model for the operation of a drift mass spectrometer. As a result of the accepted simplifications, two modules can be distinguished in the model: a hydrodynamic module, which allows one to obtain the flow structure in the chamber of a drift spectrometer, and an electric one, which tracks the movement of ions as a set of transport processes under the action of an electric field and hydrodynamic velocity. The velocity field in the drift chamber was obtained by solving the Navier-Stokes system of equations using the Ansys Fluent software package. From this field, by averaging in the "fluid tube", the value of the axial velocity component along the chamber axis was obtained. The electrical module includes the Poisson equation and the required number of charge balance equations. To implement the electrical module, a program code was compiled for the joint solution of a system of equations consisting of the Poisson equation and equations describing the transport of ions. The developed computational model of the process of ion motion in the drift space makes it possible to obtain the ion mobility spectra from the initial parameters of the sample under study.