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Article
Publication date: 6 July 2012

Bartosz Sawicki, Bartosz Chaber, Jacek Starzyński and Robert Szmurło

The purpose of this paper is to describe a new concept of a computer system devoted to simulations of electromagnetic fields inside the human body. The main idea is based on…

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Abstract

Purpose

The purpose of this paper is to describe a new concept of a computer system devoted to simulations of electromagnetic fields inside the human body. The main idea is based on application of the cloud computing approach to the electromagnetic simulator for inexperienced operators.

Design/methodology/approach

Modular design of the system is based on web technologies. The logic of simulation processes is stored in the form of scenarios consisting of several simple steps.

Findings

The authors found that a system based on a predefined, precise scenario will help an inexperienced user to solve realistic EMF simulations using state‐of‐the‐art technology. Highly modular application could be easily extended to the new functionality provided by independent programs (Processors) utilizing any type of a dedicated hardware platform.

Practical implications

The remote computing is known by computer science for its early beginning, but extraordinary growth of the internet network is renewing this term for the whole societies. Nowadays all kinds of applications are moving out of the desktop computers. The concept presented in this paper extends this new approach into realistic EMF simulation software.

Social implications

The authors have designed a system which is extremely easy to use and thus accessible to everyone. It means that the user front‐end should have low computer hardware requirements and it could be operated by an untrained person. It is assumed that it will be fully usable, even by the first‐time, incidental user.

Originality/value

The presented project is one of the very few examples of utilization of the web‐technologies for numerical simulations. The unusual user interface based on the sequence of predefined steps makes the system appropriate for a wide audience.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 31 no. 4
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 4 July 2016

Bartosz Chaber and Johan Jacob Mohr

The paper describes a fast forward electromagnetic model built with help of commercial software. The purpose of this paper is to create an efficient and robust electromagnetic…

144

Abstract

Purpose

The paper describes a fast forward electromagnetic model built with help of commercial software. The purpose of this paper is to create an efficient and robust electromagnetic field model that could be easily plugged into a working microwave imaging system. The secondary purpose is to evaluate advantages and disadvantages of such a commercial packages for creating such a model.

Design/methodology/approach

In this paper the authors decided to build the model using COMSOL Multiphysics software suite, ultimately comparing its result to measurements of a real device. The numerical model was created in an iterative fashion in order to determine how much details are needed to make it reliable, while keeping it efficient.

Findings

The authors found that the commercial software seems like a viable platform for developing electromagnetic solvers. The resulting computer model is easy to prepare, run and integrate with external tools.

Research limitations/implications

Using the experience in building numerical models of various systems the authors came to the conclusion that developing some in-house code is a very non-efficient technique as it slows down the progress of the research team once the team changes. Transfer of knowledge associated with the numerical tools is much easier when the tools are constructed using a common platform, i.e. commercial packages. It does not really matter if the software is free or proprietary as long as the platform provides efficient tools assisting in model preparation and data visualization.

Practical implications

One of the main advantages of using such a full field electromagnetic model is the ability to investigate an impact of different properties of the system (length of antennas, liquid parameters) on its performance. Thanks to the use of commercial software it is much easier to pass the project to new people too.

Originality/value

The presented numerical model utilizes a frugal meshing scheme which allows faster execution while keeping required accuracy of solutions. Using this model the authors were able to diagnose important geometrical details that could affect the performance of the system.

Details

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, vol. 35 no. 4
Type: Research Article
ISSN: 0332-1649

Keywords

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