Flothermgriddingtoolsandrecommendation printed circuit. Ansys icepak provides interfaces to siwave and ansys mechanical products, thus providing access to a full suite of tools to address electrical, thermal and structural simulation requirements. Mentors flotherm xt and the electronification of design. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Precise mechanical design is vital to the optimum performance of programmable logic designs. This document is for information and instruction purposes.
Steady state and transient thermalflow conduction convection radiation conjugate heat transfer ansys icepak velocity streamlines and temperature contours for a card array in a vme format box. Does anybody know of the software flotherm and which is better between that and solidworks flow simulation for different applications. For over 25 years flotherm has been used by a huge customer base, including almost all the major bluechip electronics companies in the world. It supports more users, application examples, libraries and published technical papers than any competing product. Still air chamber 12 x 12 x 12 closed container amkors closed loop wind tunnel is capable of controlling airflow from 50 to 1600 lpm and air temperature from 18c to 65c. The frst thermal study was conducted using icepak and flotherm to calculate heat transfer fiom an aluminum plate due to natural convection and forced convection turbulent flow, 300 fpm environment. The big 3 a comparison of electronics cooling cfd software. Flotherm xt is intended to bring electronics and mechanical design processes closer together through earlier thermal simulation.
Ansys icepak features based on a siwave simulation, the dc power distribution profile of printed circuit board layers can be imported into ansys icepak software for a thermal analysis of the board. Formal and highlevel synthesis, siemens partners with arm on automotive electronics design. Flotherm xtprogram for simulation of aerohydrodynamics and heat transfer processes for the problems of internal and external flow of liquids and gases, taking into account the impact of the joint thermal conductivity, convection and radiation. Autocad dxf, intermediate data format idf, and flotherm eco files. Here at the mechanical analysis department we love flotherm and we love developing flotherm to ensure it keeps up with the needs and follows the trends of the electronic thermal simulation market. Ansys icepak pre and post processors, together with. Ats and engineering simulation software leader future facilities announced that ats had purchased multiple seats of 6sigmaet, an electronics thermal simulation software, adding to its cfd computational fluid dynamics capabilities. Rules of thumb pcbs for printed circuit boards 3 cells in the 1st millimeter above the board 3 cells in the 1st millimeter below the board. I find the workflow between icepak and flotherm to be similar, however. New techniques for chip and package thermal modeling. Then you may use icepro to convert that to icepak model geometry. The spreadsheet is fully functional, with the diagram updating to match the inputs.
First, an example of natural convection transfer for a heat sink was performed, in. Comparison of using icepak and flotherm in electronic cooling. More generally, this rule is applicable to any surface with a significant amount of heat convecting off it. It will take quite a bit of time before it becomes easy for you to use this or any other cfd program. Search ansys training courses by discipline, product, level and location. It has helped industries to create virtual models of electronic. View forum posts private message view blog entries view articles junior member level 1 join date mar 2005 posts. The tunnel spatial uniformity of velocity is 1% of the mean value.
You may request your customer to generate an iges file for you. Icepack vs flotherm bigbboris mechanical op 25 mar 08 20. The coupling between siwave and ansys icepak software enables users to predict both. Icepak lock p icepak block icepak pcb the geometry remains the same, but the object options are different in icepak level 2 simplification already done structure tree icon is updated. Cfd enables the product design team to reduce their risks of potential design failures, optimize modality.
Setting up a model in icepak considerably takes longer than flotherm. Please request icepak support for this macro if this is the route you want to pursue. It seems everything that was formerly the domain of mechanical design engineers, from dishwashers and toasters to car seats and sprinklers, now has an electronics element. Tutorial demonstrating how to export flotherm xt results to fea text. Oct 16, 20 flotherm has enabled engineers to model electronics cooling for over 25 years. We have a csv reader macro which will help you convert the csv to icepak model. Mentor graphics reserves the right to make changes in specifications and other information contained in this publication without prior notice, and the. Tworesistor compact thermal model guideline jesd153 page 1 tworesistor compact thermal model guideline from jedec board ballot jc15. In icepak it seems that convergence is more likely to achieve than in flotherm and in shorter time as well and it probably means that icepak has a more powerful solver. Flotherm is a commercially available computational fluid dynamics software package supplied by mentor graphics.
The accuracy of the results depend on the users inputs. When prompted, name the model calibrationtutorial and wait for flotherm v11. Ansys icepak provides powerful electronic cooling solutions which utilize the industryleading ansys fluent computational fluid dynamics cfd solver for thermal and fluid flow analyses of integrated circuits ics, packages, printed circuit boards pcbs and electronic assemblies. Two candidates are flotherm from flomerics and icepack from ansys. A cfd analysis of an electronics cooling enclosure for application in telecommunication systems, applied thermal engineering 2010, doi. Hello does anybody know of the software flotherm and which is better between that and solidworks flow simulation for different applications. A cfd analysis of an electronics cooling enclosure for. During this technical session, we will demonstrate how to build a thermal analysis model by using existing eda and cad information along with libraries. Mentor graphics flotherm is powerful thermal analysis and tool with many advanced options and features. I was askedto look into advantages floworks has over flotherm. Flotherm and floefd which respectively are a dedicated electronic. Flotherm has had a localized grid capability since v4.
Based on an siwave analysis, the dc power distribution profile can be imported into ansys icepak to account for heating due to copper resistive. A comparison of using icepak and flotherm in electronic. Flotherm or icepak or coolit which is the easiest to use. In order to prevent the further spread of the coronavirus, the tib is closed to the public. Here is a part of a report i made for comparing icepak and flotherm for electronic cooling applications. Flotherm is the marketleading electronics cooling simulation software with more installed seats than all other electronics cooling cfd software. We are still here for you online and by telephone, and our digital services and tib document delivery are available as usual. Flotherm is a powerful 3d computational fluid dynamics software that predicts airflow and heat transfer in and around electronic equipment, including the coupled effects of conduction, convection and radiation. The models offered are simplified to minimize simulation time. Flotherm has enabled engineers to model electronics cooling for over 25 years.
Most of our thermal analysis concentrateson small mechanical components. Whats new in simcenter flotherm and simcenter flotherm xt 2019. Flotherm and its new xml neutral file format robin. Use html for full navigation flotherm pack users guide software version 8. A comparison of using icepak and flotherm in electronic cooling. Yang 9 showed that both icepak and flotherm can yield accurate modelling. Are there any comparison charts that make selection easier. Flotherm is powerful 3d simulation software for thermal design of electronic components and systems. This allows a region of the model to have a finer mesh than the background parent mesh that it sits in. Ansys icepak is an integrated electronics cooling solution for ic packages, printed circuit boards and complete electronic systems. Haddad2 1school of the built environment, university of nottingham, nottingham ng7 2rd, uk 2nuventix inc. In post processing, apparently icepak gives user more options and flexibility than flotherm although lack of perspectives, still remains a big problem. Which cfd tools are better for heatsink design and airflow prediction, flotherm or icepak or coolit which is the easiest to use.
Icepack vs flotherm computational fluid dynamics cfd. The flotherm community has traditionally handled this by sketching the part manually in flotherm with simpler objects with many small solid blocks to create a customized heat sink for example or by importing a solid model from an mcad tool. Flotherm users can write out a summary data that writes out objects, coordinates, size, etc. Flotherm pack is a mentor graphics webbased service that generates reliable, accurate thermal models of ic components, test boards, standard test harnesses and other associated parts with the minimum of effort. Simulation software is a good tool to reduce design cycles and prototypes. Flotherm is the undisputed world leader for electronics thermal analysis, with a 98 percent user recommendation rating. Abstract this paper presents results of cfd analysis of an electronics cooling enclosure used as part. Small and large companies alike rely on flotherm to perform their thermalfluid analysis confident of the return on their investment. Next, we will discuss how to solve and analyze the results in flotherm. Try it out, but to follow along with the tutorial please use the provided default values. This is a pdf file of an unedited manuscript that has been accepted for publication. For example, by linking ansys siwave and icepak, the software can exchange power.
If you have extra time available, spend some time investigating other aspects of the program or add some new element to your project. Liquid cooling of bright leds for automotive applications yan lai1, nicolas cordero1, frank barthel2, frank tebbe2, jorg kuhn2, robert apfelbeck2, and dagmar wurtenberger2 1 tyndall national institute, cork, ireland 2 schefenacker vision systems gmbh, schwaikheim, germany abstract with the advances in the technology of materials based. Ctm standards for inapplication junction temperature prediction flotherm icepak coolit flopcb iceboard. Note viewing pdf files within a web browser causes some links not to function. It has helped industries to create virtual models of electronic equipment, perform thermal analysis, and test design. Jan 16, 2017 download mentor graphics flotherm free, mentor graphics flotherm latest version, thermal analysis and simulation tool with cfd technology. Monica schnitger another fine mesh is a must for everyone interested in cfd. Computational fluid dynamics cfd is a technology based on a fast and reliable computational methodology for solving complex fluid flow and heat transfer problems. Our company is going to invest some money in cfd software for electronic packaging development on card and box level. Flotherm and its new xml neutral file format share this post share on twitter share on linkedin share on facebook we have recently published a new xml schema and associated xml reader for flotherm that offers some exciting new possibilities.
Thermal management of electronics using ansys icepak. Flotherm and its new xml neutral file format robin bornoff. A web seminar on simcenter flotherm and simcenter flotherm xt 2019. As a matter of fact, 19 out of the top 20 global electronics companies use flotherm for their product design and development. Electronic products, and products that contain electronics, are typified by being constructed of 100s if not s of individual parts. Download mentor graphics flotherm free all pc world. This application note discusses how the thermal models are created using simulation software packages and how to use these models. Mechanical analysis blog technical and industry topic discussions, thoughts, ideas and information. Flothermicepak comparison for electronic cooling cfd. New techniques for chip and package thermal modeling, flomerics inc and gradient design automation codesign and data exchange standardscodesign and data exchange standards system pcb package chip. February 25, 2014 robin bornoff articles, cfd software, electronics cooling blog, mentor graphics blog. Pdml files allow the engineer to model the thermal performance of each heat sink. Ic packages, printed circuit boards and complete electronic systems. Ansys icepak is an integrated electronics cooling solution for.
Icepak graphical user interface gui seems to be the achilles heel. Meshing does tend to be very manual and can be tedious however. This is automatically taken care of in flotherm v8. Modify icepak object type in spaceclaim sometimes it makes sense to change the object type, some examples are. Basically iwant to know when to use floworks and when to use flotherm.
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