Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. The comsol user interface reduces clutter and redundant tasks, so your attention can be focused on the substance of your design studies. Dec 06, 2017 this tutorial shows how to create a 3d mesh of an inductor and a billet. Chapter 2 describes the electromagnetic heating modeling process using simple coil models in comsol. Overview of simulating joule heating with comsol software. This is a reference guide on simulation and topology optimization written with both students and industry engineers in mind. In this 3rd chapter of a 3part demo you will see how to use temperaturedependent material properties when modeling the joule heating in a fuse on a circuit board. The temperature in the busbar rises due to resistive heating. The second mechanism of heat generation in workpiece is related with hysteresis losses and it. Joule heating effect multiphysics in integrated circuit. In some cases, joule heating is pertinent to an electrical devices design, while in others, it is an unwanted effect. This allows a full range of joule heating capabilities to be simulated within the familiar abaqus environment. The pressure and the velocity field are the solution of the navierstokes equations.
Simulation of ground heat exchanger for cryogenic applications. Sert comsol1 tutorial 3 problem definition the following bicycle wrench is made of a 36 steel. Simulation of current density for electroplating on silicon. I want to see the effect of free convection on a patch of water enclosed inside a solid calcite when it is heated by a dipole antenna. This includes the estimation of magnetic fields from the coil, heat transfer modeling and cooling with laminar flow. By the end you will be well on your way to reaping all. This example describes an array of heating tubes submerged in a vessel with fluid flow entering at the bottom. This video walks you through the steps of downloading and installing comsol multiphysics. An explanation on how to model with a programming language is available in yet another book, the comsol multiphysics scripting guide. How to build 3d objects from 2d geometries in comsol. Frequency domain modeling of the magnetic fields is combined with stationary heat transfer.
The layer results in joule heating when a voltage is applied to the circuit, which results in a structural deformation. The informative charts give you an idea of comsol s capability by associated files, functions, and builtin options. Read 5 answers by scientists with 1 recommendation from their colleagues to the question asked by t. For example, in manufacturing processes, they heat up reactive fluids. If you already have a comsol account then move to step 6.
The layers properties determine the amount of heat produced. This course is a recommended prerequisite for all specialized courses. The device in this tutorial example consists of an electrically resistive layer deposited on a glass plate. This is a multiphysics model because it involves fluid dynamics coupled with heat transfer. This mechanism of heat generation is present in every electrically conductive material even nonmagnetic one. The rf heating tutorial is an example of a twoway coupled problem. How to set up and run a simulation with comsol multiphysics.
In both cases, when meshing these models, automatic mesh refinement resolves the shock pattern by refining around the regions with very high velocity and pressure gradients. Comsol pace georgia institute of technology atlanta, ga. Electromechanical system applications and optimization book, authored by ercan dede, jaewook lee, and tsuyoshi nomura, fills a gap in. I want to see the heat transfer characteristics in a steel tube using water laminar flow. Designing and modeling electrical systems and devices. In testing we used a pulsed laser along a range of peak powers.
It is important to mention that the heat generated at the junction is influenced by the joule heating and thermal gradient effects. In chapter 2, joule heating and thermoelectric heating in 1st harmonic and 2nd. Ive tried heat transfer joule heating, but it doesnt provide me with the same results. The heat transfer module can be used to analyze the effects of joule heating, inductive heating, and microwave heating effects. Determine the thickness needed based on the maximum distortion energy theory. Comsol heat transfer models multiphysics modeling series layla s. While simulation, i have encountered a problem given. Design module updates for users of the design module, comsol multiphysics version 5. Watch the video to learn about how the new ui works in terms of the new ribbon.
Middle east technical university mechanical engineering department me 4 introduction to finite element analysis spring 2015 dr. Cfd software for simulating fluid flow applications comsol. After a general introduction to the user interface, several tutorials will take you step by step through sample models that highlight important features. Multiphysics modeling of resistive heating in an aluminum fuse on a circuit board. The model shown in the video concerns the re heating of a billet traveling through a coil. Use of comsol multiphysics results conclusion 612 comsol initial and boundary conditions dirichlet condition 10c at r5m perfect insulation on the symmetry and surface heat flux from the bottom 60x103wm2 liquid nitrogen is entering at 77k 196. A couple of applications that do rely on joule heating include hot plates directly and microvalves for fluid control indirectly, through thermal expansion. The powerful tools in the autocad cad system allow you to. Create 3d objects from 2d plane geometries using the tools, operations, and functionality in comsol multiphysics. The meshing is done using open source tool salome, which is integrated in cenos platform. The combination of comsol products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. As alternative we can use the already constructed geometry by applying the steps from part b. The dcinduced resistive heating causes a temperature rise in the actuator, which leads to thermal expansion. Joule heating of a microactuator thermalactuatorjh.
After completing this tutorial, watch more videos in our video gallery. Recent versions of the most popular web browsers support the webgl standard for 3d graphics and websockets. Also referred to as ohmic or resistive heating, joule heating commonly affects material properties, such as electrical conductivity. We also offer videos and playlists of keynote speakers, model demonstrations, and software tips from comsol engineers and customers. This handson workshop covers the development of a loudspeaker product from concept to design, to modeling, to materials choices, to building a working loudspeaker and testing to confirm it fulfills the. The thermalelectric multiphysics capability in abaqus provides a complete fullycoupled capability including nonlinear effects in material properties in both the electrical and thermal physics components. These can include inductors, capacitors, coils, motors, and insulating material, where the parameters that must be measured and optimized to describe their property include inductance, capacitance, impedance, force, torque, and resistance.
Warning your internet explorer is in compatibility mode and may not be displaying the website correctly. The layer results in joule heating when a voltage is. Middle east technical university mechanical engineering. Electromagnetics modeling in comsol rf module highfrequency modeling microwave heating acdc module statics and lowfrequency modeling induction heating plasma module model nonequilibrium discharges mems module statics subset of acdc module advanced statics electromechanics. The effects that need to be taken into account are heat transfer, transport of water vapor, and fluid flow. The em loss acts as a source of heat, which increases the value of temperaturedependent. A class kit license ckl allows students and teachers to run the comsol multiphysics simulation software for use in an ordinary course. Chapter 3 presents the modeling of a project conceptual inductor model in comsol.
Joule heating calculates heat energy generated during the passage of electric current through a semiconductor. Joule heating in a fuse on a circuit board, chapter 1 comsol. I am trying to simulate a joule heating experiment where a potential difference to applied across two electrodes causing the water and the cube within the vessel to heat up, please see image attached. Design optimization for electromechanical applications the multiphysics simulation. Small heating circuits find use in many applications. The busbar is made of copper and contains bolts made out of. Add a blank template material to your model, assign it to the necessary parts of your model geometry, and describe how the material behaves through specifying material properties. In comsol, how can i input my own specific material properties. The table below lists the earliest version of each browser that supports webgl and websockets, but we recommend always using the latest version of the browser for the best user experience. A few examples of where this occurs includes conductors in fuses, electronics, power lines, and electric heaters. Her research areas include heat transfer modelling and validation, thermal management, thermal imaging, flow optimization, and process improvement. The power transistor, in this case an offtheshelf product, can be mounted on a heat. Comsol multiphysics version 4 brings an unprecedented level of clarity to your simulation work by giving you both an organized model overview and a streamlined modelbuilding process.
In part a of the tutorial we construct the geometry of the problem to be solved. The wet surface feature is used to implement the source term for the water vapor and to. Joule heating in a fuse on a circuit board tutorial, chapter 2. It helps designers to spot the overheated areas and make proper improvements to.
Setting up and running a simulation with comsol multiphysics. This is the first video in a 3part demo on multiphysics modeling of resistive heating in an aluminum fuse. In comsol multiphysics, you can create your own completely customized materials. If you dont have an account, then click on create an access account to create one. Comsol multiphysics intensive training 2 days an intensive introduction to the workflow and key features of comsol multiphysics via a combination of guided handson examples, lecture, and tutorials. Browse all of the acdc module updates in more detail below. This tutorial model of the joule heating effect in a busbar demonstrates how to synchronize geometry between autocad and comsol, how to modify the. Modeling of electromagnetic heating of multicoil inductors. These multiphysics simulation capabilities are useful in the design and study of underground cables, fuses, inductors. Particular functionality may be common to several products. We discuss methods that involve simple approximations, highfidelity nonisothermal flow coupling, modeling heat transfer at fluidsolid interfaces, boundary approximations using heat transfer coefficients, techniques to fully resolve the flow and. Thermoelectric simulation using comsol multiphysics and. Electrical devices come in many shapes and sizes and often have to connect and correlate with many other devices in an electrical system. You can simulate the effect of joule heating using comsol multiphysics for a variety of electrical applications.
Find out how to add physics and solve the model in comsol multiphysics. Using the popular heat transfer module from comsol, this text is designed to provide models for investigating and analyzing heat transfer applications such as conduction. The layer results in joule heating when a voltage is applied to the circuit, which results in a structural. System requirements for running comsol apps version 5. Time varying heat equations and maxwells equations are solved in frequency domain and applied to commercial finite element software, comsol. The cube is submerged in the water and should theoretically heat up quicker than the water due to its conductivity. Installing comsol multiphysics with a class kit license. In this second chapter of a 3part demo you will learn how to. Simulation of current density for electroplating on silicon using a hull cell.
After completing this tutorial, you can learn more about each step in the modeling workflow through the comsol learning center. This archived webinar provides an overview of simulating joule heating with comsol multiphysics. Running a model classfile with the comsol batch command getting the comsol installation path from the windows registry setting up eclipse for compiling and running a java file the model object in the comsol java api you access models through the model object, which contains all algorithms and data structures for a comsol model. Electric heating, also referred to as joule heating, is in many cases an. The comsol software automatically formulates the energy equation coupled to the momentum and mass balance equations for ideal gases. Multiphysics modeling of resistive heating in an aluminum fuse. This multiphysics example simulates the electrical heat generation, heat transfer, and mechanical stresses and deformations of a heating circuit device. To demonstrate the use of the modeling workflow, we simulate the joule heating of a busbar.
Model 1 right click add physics heat transfer electromagnetic heating joule heating jh s4 now, start adding the properties to the work piece. Following the steps given in the documentation of the comsol heat conduction in a slab tutorial see next page. This tutorial model of a twohotarm thermal actuator couples three different physics. In this, i am explaining joule heating effect simulation by using comsol multiphysics software. Geometry 1 import 1 imp1 1 on the home toolbar, click import.
Comsol multiphysics graphical user interface, please refer to the comsol multiphysics users guide or the comsol multiphysics quick start manual. To efficiently calculate electric fields outside electrical installations, a researcher from abb created a simulation app. Inductive heating of a billet tutorial comsol multiphysics. Submit a plot similar to figure 52 in the documentation. In these tutorials, linus andersson from the global technical support team here at comsol will show you how to couple the direct current electrical current in a fuse on a circuit board to the heat transfer in it and the surrounding system. Tutorial model of a heating circuit comsol multiphysics. Uh innovation centre college lane hatfield hertfordshire al10 9ab phone. Comsol heat transfer models multiphysics modeling series. The inductive heating of a steel billet model presented in the video can be downloaded from our model gallery. This tutorial shows how to couple three physics interfaces to model evaporative cooling. My objective is to evaluate the joule heating effect on the ic pins due to the injection of electirc current pulse. Napa ab by jerry mcnutt eminence loudspeaker, jinlan huang comsol, brian myersparts expressdayton audio.
1251 397 860 860 278 563 1402 493 1279 966 466 1066 1511 1147 989 1518 338 538 1100 1351 124 1041 728 1268 853 1495 219 510 1265 965 240 721 122 213 1396 732 685 773 1045