Single turn coil comsol software

The next step in process design is to discern the consequences on the temperature field, for what our axisymmetric model includes all important. Simulation of magnetic field topology in a saddleshaped. Quickfield is very powerful tool for electromagnetic coil simulation. I use comsol for induction heating application but i dont know what is the best. A simplified version of the induction coil is used for mensional axisymmetric geometry with 10 coil imported into comsol is shown in fig. Using comsol, we can solve for potential issues faster with fewer iterations and significantly reduce the testing cost. Later on you can use them for your wireless power transmitterreceiver coil. Aug 19, 2015 from single turn and multi turn coil arrangements to coil groups. Today, we will look into one of the key concepts to keep in mind when modeling coils. A good understanding of the electromagnetic field distribution is required to design such an inductor. My task is i want to find coil inductance and ac resistance at different frequncies.

In the pdf, it is written that the helmholtz inductors are modelled by homogenised multi turn coils but i would like to analyze phenomenons related to single coil model. Modeling of rotating magnetic field eddy current probe for inspection of tubular metallic components. To download the mphfiles, log in or create a comsol access account that is associated with a valid comsol license. Comsol opens brazil office in curitiba for comsol multiphysics simulations. On the comsol youtube channel, you will learn something new in a variety of helpful and entertaining videos.

There is one input in the domain which requires to input coil crossection area. Users of the companys flagship product comsol multiphysics will benefit from local technical support. See whats new in the acdc module in comsol multiphysics version 5. Watch our recorded webinar and learn how you can design and simulate physical quantities and. Difference between 1 turn multiturn coil and single turn coil. Dear colleagues, i need to modeling ac coil to inducting a ac magnetic field for my project. Comsol software, i used 2d magnetic field physics mf and multiturn coil. The acdc module of comsol multiphysics software is used to model the electromagnetic response. Comsol s single and multi turn domains are used to model an induction coil, and the simulations of induction heating are. Afterwards, in the single turn coil domain node, i added a boundary feed subnode and set it as the boundary of the new torus, with 1 a coil excitation, and i added a ground subnode set as the other boundary of the gap torus. The singleturn coil feature, to introduce an externally applied current or voltage. Nov 23, 2017 did you know that designing electrical systems and devices is faster and cheaper with simulation. Harmonic and transient magnetic analysis of single turn coils.

Modeling mutual inductance using comsol multiphysics. This chapter introduces you to the capabilities of the module including an. To start a new discussion with a link back to this one. Is there any way to modeling ac and dc magnetic field. I want to model a basic electromagnet made from a coil of wire around a cylindrical iron core, do a basic comsol study of the effect of varying current and coil density on the e and b fields. According to the results of calculations performed and the.

This discussion is about an older version of the comsol multiphysics software. Please login with a confirmed email address before reporting spam i need to find magnetic field, as a function of time, in the system of coils where voltage is a userdefined function of. When you expand comsol multiphysics with the cfd module, you have access to features for specialized cfd simulations in addition to the core functionality of the comsol multiphysics software platform. The voltage induced in single turn of pick up coil was derived for extracting amplitude and. Did you know that designing electrical systems and devices is faster and cheaper with simulation. The transient model of a single phase ecore transformer uses a multiturn coil domain and includes the effect of a nonlinear bh curve in the core. Hi all, i am currently looking into simulating coils in 3d. The model consists of a multiturn coil made of copper placed on top of the single strand fiberswoven mat and the carbon fiber reinforced plastic cfrp plate with an air gap of 12. Modeling coils in the acdc module comsol multiphysics. I used a permanent magnet and also multiturn coil with 10 volt excitation voltage. I was trying to model the coupling of two single turn coils in comsol 5.

Singleturn coil physics with the coil group feature was used to introduce the stimulation signal in the form of pulses designed using rectangle and analytic features of the global definition functions. My task is to model the force of a planar multiturn coil on a disc shaped permanent magnet which is situated with its symmetry axis colinear to the coil symmetry axis at some distance above the coil. The software integrates highly productive model building, app design based on comsol models created from a solidworks software geometry. Modeling with comsol multiphysics means being able to move between simulating electromagnetics, structural mechanics, acoustics, fluid flow, heat transfer, and chemical reactions phenomena, or any other physics modeled by a system of pdes, in one software environment. As the inductance of a coil is due to the magnetic flux around it, the stronger the magnetic flux for a given value of current the greater will be the inductance. So a coil of many turns will have a higher inductance value than one of only a few turns and therefore, the equation above will give inductance l as being proportional to the number.

I know that there are new single and multi turn coil bc for 4. Figure 1 from induction heating process design using comsol. For example, in our 1100kv bushing test, reducing one test could save us 1. With livelink for solidworks and the application builder from comsol its now possible to build applications that integrate simulation and 3d design. Systems and hardware change regularly, which may impact any determination of what system requirements are appropriate for you. This stepbystep tutorial video shows you how to change your comsol multiphysics license file for cpulocked single user license cpu and named single user license nsl types when any of these events take place. Some numerical results for an industrial furnace are shown with high frequency. The singleturn coil and multiturn coil features in the magnetic fields and. Exactly what hardware configuration you need strongly depends on what modules you use, how big your projects are and, of course, your budget. Sep 26, 2014 the coil can be excited with voltage input as a function of time as shown in the attached model. Discussion closed this discussion was created more than 6 months ago and has been closed.

Why the coil geometry analysis results is wrong comsol. Induction heating process design using comsol multiphysics. The current flow black arrows in the wire results in a magnetic field colored arrows in the. With the application builder, users can create multiphysics apps not only within a single software environment, but within a single window using the same file format, said bjorn sjodin, vp at comsol. In the comsol software, i used 2d magnetic field physics mf and multi turn coil. Nov 03, 2014 in this tutorial you will learn how to model the helix structure in hfss or maxwell. The red and blue colors in the figure are used to differentiate the. Comsol announces integration of simulation and 3d design. An eightturn octagonal spiral coil is modeled using the single turn coil. Comsol software users who are onsubscription should submit their. Additionally, the report includes other electromagnet models and their comparison with the original model. In a single turn coil the current density varies across the cross section whereas the. The model is input with 10 numbers of coil turns and an alternating coil current.

Within multi turn coil 1 multi turn coil coil excitation voltage voltage 1vsin2pi50hzt. The model shows how to connect the transformer model to the external circuits using electric circuit interface. This issue of multiphysics simulation, sponsored by comsol, inc. Second, the currents are adjusted to minimize power dissipation with a constraint on field minimum at a point. The following is an overview of the license types for comsol multiphysics. The shape of the singleturn coil can be optimised with the help of numerical simulation of the electric current. The inductor heats both, the melting feed rod and the molten zone. Comsol multiphysics designed to assist you to solve and model lowfrequency. Modeling of rotating magnetic field eddy current probe for. My question is that if this crossection area should match with the crossection.

The first coil has n1 turns and carries a current i1 which gives rise to a magnetic field b1 g. The comsol software will save a text file in the spice format representing the circuit currently modeled by the physics. How to add current and what is the best singleturn or multiturn. At first i want to realize how this component work, so i have found a example from model gallery. An eight turn octagonal spiral coil is modeled using the single turn coil boundary condition, with floating potential boundary conditions to enforce continuity of the current between the disjoint turns of the coil. This causes tremendous currents to flow through the work piece. Ece 480 design team 6 is using a similar capacitive sensor design to detect water. In the comsol software, i used 2d magnetic field physics mf and multiturn coil.

Comsol says it has opened an office in curitiba, parana, to provide multiphysics simulation and analysis software for the brazilian market. Bo zhang, senior engineer at pinggao group, explains. Workstation hardware for comsol system requirements. So under components definitions i added a ramp function and named it cr1. The passage of current through this coil generates. Feb 01, 2019 single turn, flexible, multi turn cylindrical, left turn, right turn, rodshaped, hairpin, parallel, earshaped, tiny, big whatever the coil shape and size the right design allows to maximise coil lifetime and ensure lowest energy consumption and best effects on work process and materials. For accurate results the mesh of 6 810 elements was created. How to update your comsol software license file for cpu and.

First, the current in each turn is adjusted with the objective of having a. Single turn coils are used in pulsed magnetic technologies for which both magnetoharmonic and transient magnetic analysis are required. This feature makes it easier to excite the model in various ways. Jan 01, 2014 fz silicon is commonly heated inductively by a single turn coil. Models for optimizing coils with comsol multiphysics. Results are compared with the predictions of a 1d analytical model at each frequency and a representative experimental value at 50 hz. Named single user license nsl the comsol multiphysics software may be installed and operated on up to four 4 individual computers, provided it is only accessible to, and operated by, a single licensed user designated by us as the named user for that license and. Comsol webinar modeling coils and electric devices youtube. Comsol multiphysics software understand, predict, and optimize. Two of our most popular workstation models for customers using comsol are our titan w599 and titan x650. Inductance and capacitance matrix calculations comsol.

Several different approaches to optimizing a tenturn axisymmetric coil are presented. Mar 03, 2016 one of the most common uses of the acdc module is for modeling electromagnetic coils and the interactions with their surroundings. This documentation and the programs described herein are furnished under the comsol software. From singleturn and multiturn coil arrangements to coil groups. It is very useful software that can save a lot of time by simulating the design before actually fabricating it. Comsol is a fembased software, and the computation depends on the meshing of the region of interest, and there is a limit. Problem is at 100khz it is giving good results but when it comes to 1mhz it is giving bad results. An eightturn octagonal spiral coil is modeled using the single turn coil boundary condition. Could anyone check this convergence problem in solver for the. All of the features listed below are implemented through associated physics interfaces. The same excitation can also be used for single turn coil as well. Harmonic and transient magnetic analysis of single turn.

We suggest studying one single turn coil example made of a conducting massive coil, an optional conducting field shaper and. Comsol products are usually memory and cpu hungry applications. Several different approaches to optimizing a ten turn axisymmetric coil are presented. Electromagnetic coils are used in many applications where the electromagnetic field needs to be generated or sensed. The effect of the size of the computational space or magnetic domain on the calculated total inductance is also examined. Finite element method was used to perform numerical simulation in comsol multiphysics software. We suggest studying one single turn coil example made of a conducting massive coil, an optional conducting field shaper and an internal conducting tube supposed to be deformed. Analytical and experimental validation of electromagnetic. Haye2 1esiee amiens, france 2pft innovaltech, france abstract single turn coils are used in pulsed magnetic technologies for which both magnetoharmonic and. How to apply current excitation on a singleturn inductor. Ansys maxwell hfss how to model helix circular coil for wpt. Harmonic and transient magnetic analysis of single turn coils fed by a current pulse at medium frequency o.

How to add current and what is the best single turn or. I saw a model in the library rf coil that had one, but i cant open it becasue i dont have the rf module. Simulation of a time dependent 2d generator model using. First, the current in each turn is adjusted with the objective of having a uniform magnetic flux density along the centerline. Comsol, it is also possible to observe the effects of temperature on the capacitance value. There are several attempts to calculate the joule heat distribution in axisymmetric approximation, which can predict the change of the main parameters of the. Simulation of magnetic field topology in a saddleshaped coil. This example demonstrates how to exploit the nearsymmetry of the structure to greatly reduce the model size. We are going to use litz wire to reduce skin effect. Optimizing planar coils for pcbs with electromagnetics simulation. Single turn coil 1 and boundary feed 1 a dedicated feature is added for the solid copper winding of the inductor.

With the help of capterra, learn about comsol multiphysics, its features, pricing information, popular comparisons to other simulation products and more. Cfd software for simulating fluid flow applications comsol. The latest release of comsol multiphysics provides capabilities for building custom simulation applications. Singleturn coil 1 and boundary feed 1 a dedicated feature is added for the solid copper winding of the inductor. The software tool that is used to model the electromagnet is comsol multiphysics, a commercial fea package provided by the university of manchester, computer science school. The study only contains one multi turn coil and two metal plates, embedded in a sphere. Comsol multiphysics package or the heat transfer module. As a material of coil was selected copper with conductivity. By establishing direct operations in brazil, comsol can fully serve the regions vibrant hightech industry and research community. Comsol multiphysics designed to assist you to solve and model lowfrequency electromagnetics.

Comsols single and multiturn domains are used to model an induction coil, and the simulations of induction heating are made at a range of frequencies from 50 hz to 500 khz. We also show you how to compute the induced voltage, copper loss in stator. Inductance of coil is calculated from total magnetic energy created by current passing through the coil using the following formula. Learn more about these two license types, and others, on ourlicense type page. In the pdf, it is written that the helmholtz inductors are modelled by homogenised multiturn coils but i would like to analyze phenomenons related to singlecoil model. Comsol is a fembased software, and the computation depends on the. Induction heating computer simulation is a powerful tool for process design and optimization, induction coil design, equipment selection, as well as education and business presentations.