Thermal Analysis in SOLIDWORKS Flow Simulation with Natural Convection
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- เผยแพร่เมื่อ 26 ก.ค. 2024
- Learn how to setup an external analysis natural convection problem in SOLIDWORKS Flow Simulation. In this video we will setup an external analysis with heat conduction in solids, heat sources, solid material, size the computational domain, set up goals, and interpret the results as well as clone the project to test a design variation in an alternate configuration.
Download the files used in the video here: www.dropbox.com/sh/zu7tcrh3yv...
Presented by Ryan Navarro
Meshing Guide for Flow Simulation:
• Meshing guide for SOLI...
Liquid Cooling in SOLIDWORKS Flow Simulation Webinar (larger assembly shown in this video)
• Designing Liquid Coole...
Setting up an Internal Analysis:
• Internal Pipe Flow wit...
0:00 Introduction
0:45 Geometry Setup
1:52 Getting Started / Project Wizard
3:37 Sizing the Computational Domain
4:50 Solid Material definition
5:24 Heat Source definition
6:40 Mesh settings - Minimum gap size
7:00 Run the analysis
8:03 Interpreting results - Surface plot temperature, cut plot streamlines
9:10 Cloning project for alternate configuration
10:05 Interpreting second set of results - Flow trajectories
For more information on SOLIDWORKS: hawkridgesys.com/solidworks
For more information on SOLIDWORKS Simulation: hawkridgesys.com/solidworks/s...
Technical Support Knowledgebase: support.hawkridgesys.com/ - วิทยาศาสตร์และเทคโนโลยี
Thank you for this very helpful, to the point video. I've been using SW since 04, and seen many tutorials over the years. This one was the best, to the point tutorial I have seen, seriously. Nobody want's to watch a 30min video filled with off topic tangents/jibberish. This is an extremely efficient, clear and informative tutorial. All within a very palatable 10mins. Very well done. Much kudos to you Sir.
this is an amazing tutorial, easy to understand and very well explained
Very well explained the basic
Please keep these type of contents
Thank you
Hi! Ryan Thank you for the wonderful video explanation. Your video helped a lot to solve the heat transfer problem.
Спасибо! Очень полезное видео! Рад, что нашел ваш канал. Снимайте пожалуйста еще больше видео о Flow Simulation. Например, интересно было бы видео о моделировании потоков в камере с несколькими входами и выходами воздуха и водяного пара, с нагревательными элементами и вентиляторами. (Пароконвектоматы, сушильные камеры, коптильные камеры для разных продуктов)
This is an amazing tutorial! Thank you so much!
Thank you! Very helpful tutorial.
The files used in this video can be downloaded here: www.dropbox.com/sh/zu7tcrh3yvzcd1r/AAClrRnxr6EEVFm-XVrC5R2_a?dl=0
They were created in SOLIDWORKS 2021 version but there is also a .STEP file of the base geometry for opening up in older versions.
Great video!
very helpful indeed, thank you.
유용한 정보 감사합니다.
Fantastic💛💛
Wow very nice vedio, I like it.
nice thanks
Dear ,
I extend my gratitude for your video and the CAD file YOU SHARED.
I have replicated your example using a different simulation software, employing aluminum as the solid material with a thermal conductivity of 230 W/mK. However, I have not achieved the same results as yours.
Interestingly, when I utilized stainless steel with a thermal conductivity of 30 W/mK, I obtained identical outcomes.
Thus, I would appreciate knowing the thermal conductivity value of aluminum you utilized in your example.
Thank you for your response.
Sincerely,
Sir its a great information regarding thermal simulation . Can we have a video for thermal simulation result template
Great video!!! Do you guys have videos on flow analysis?
Yes! Did you see the recent video on setting up an internal analysis? th-cam.com/video/8R60y9Y9480/w-d-xo.html
We will be uploading a video on the details of meshing in Flow Simulation in the next couple weeks.
Wow, thank you for your helpful videos. This was even more interesting. Can you please show a video for a simulation of mist or air passing through drift eliminator plates? I would like to see how to do that. Thank you in advance.
For this application we would recommend using Particle Studies. This allows injection of liquid droplets into an air stream, and prediction of where they will condense or accumulate
We have a basic tutorial here which uses an oil catch can / separator, but the physics should be pretty similar:
th-cam.com/video/JhOWgCXGz1A/w-d-xo.html
We'll also add the idea for the drift eliminators to our video topic list! Thanks!
Hi, thanks for video, very well explained. Is possible to calculate the convection value of the fins in this analysis? Thank you Fabio
Yes, Flow Simulation calculates the convection coefficients. To extract this value I would recommend setting up a surface goal on the fins to track "Heat Transfer Coefficient" parameter. It could also be extracted from surface parameters in the results.
Where and where we can chose the file for save the results ? Please ( sorry for my bad English)
How to thermal analyze of rotating heated part with natural convection?
i Wonder if it is possible to do a secrion of the surface plot? So i can see the internal distribution of heat within the part?
Hi Angus, you can do this by creating a Cut Plot and choosing option such as Temperature (solid) or Temperature.
You would also need to adjust model display transparency, or hide the solid part so that you can see the cut plot
Thank you for this video. I expanded this example a bit by adding a pcb connecting to the pedestal through a copper plate. On the other side of the pcb , I placed a component as a heat source. the pcb is also supported by some bosses. The pcb is defined as non-isotropic. After run the simulation, the flux plot shows that the heat only goes through the pcb - screw bosses the the heatsink. nothing goes through the copper plate to the heat sink. Why this happen?
The heat transfer should occur automatically between coincident faces. Possibly the geometry has a small gap in it or an interference. In this case you could either correct the geometry issue, or use something like a thermal joint condition to span the gap.
Another possibility is the solid material definition is incorrect - if one body is defined as a perfect Insulator then you would see no conduction through it
if I add multiple volume heatsource, for example, 2 TWO CPUs of 100W each.
Do I choose two "solid" CPUs and type 200W, or create two separate volume sources of 100W each?
"Volume" sources will be distributed equally in terms of volume. So if the two CPUs are identical (same volume) then it would be equivalent to do either method.
If you are not sure if they are identical geometry then it is best to define the sources separately.
Did you use constant density for the air material? Should it not be ideal gas? Its density changes in fluids that cause buoyancy effects. I believe your model shows this by looking at the plot for air temp and you see there is very little heat dissipation
This example uses the built-in "Air" ideal gas model. As long as Gravity and Pressure Potential (gravity) is enabled in the General Settings then the buoyancy caused by density change of the fluid is automatically accounted for, this is what forms the natural convection currents and is responsible for all the air velocity visible in the velocity cut plot, as there is no other fluid flow defined in the project.
Under Velocity parameters if we add the velocity, will it become the forced convection?
Yes that's correct, if you input some velocity as shown at 3:26 it would represent a forced convection case (such as a wind or breeze flowing over the unit). Note that some testing standards accommodate a condition similar to a mild breeze even for "natural convection" problems, and this can have a large influence on the result.
Typically leaving all the velocities at zero and relying strictly on the natural convection will be the most conservative estimate. Including radiative heat transfer can also be an important factor for natural convection problems.
If the heat source was applied on top instead of the bottom of the sink - would this simulate heat extraction? i.e the "heat source" application is set to an upwards direction?
The heat source will always input heat so long as the sign is positive. If you want to extract heat, such as to represent some cooler or cold plate, you can enter a negative heat power in the heat source.
@@hawkridgesystems Thanks for this. Would it be possible to make a video explaining how you would find the temperature difference if a fluid (inlet and outlet), using equation goals, with a heat source applied? More so on what general settings to click on in wizard. I've found that choosing the heat transfer rate there and also applying the heat source does something weird. On the other hand, clicking adiabatic and then applying heat source works, but this seems contradictory. I'm also presuming the meshing on the fluid and solid is done automatically.
@@orrinbishop3326 it sounds like maybe you are referring to an internal analysis (such as a pipe / duct). The adiabatic condition you're describing sounds like the Default Outer Wall Condition. The Default Outer Wall Conditions will control heat loss through the "exterior" of the internal analysis - it will apply to any exterior walls that are not affected by a boundary condition. Typically we would leave that setting at adiabatic unless there is some known heat transfer loss rate to the outside environment.
When the default outer wall condition is set to adiabatic, all the heat transfer will occur internally within the computational domain - heat may flow out of an outlet boundary condition for instance but no heat will be lost through the side walls. Setting it to adiabatic is equivalent to treating any exterior wall that does not have a boundary condition as insulated.
It is a good idea for a future video and we will add it to our list!
how flow simulation in room incubator eeg
Hi Mr., Why your CPU ran very fast during calculation process?
There was some video magic there - a timelapse of 1.5x speed for the first analysis and 10x speed for the second analysis. In reality the simulations took up to a few minutes to solve.
Do anyone how to apply temperature instead of heat source. If any one know pls tell me.
You can do this as a "Volume Source" selecting the third option. This would be the recommended method if you expect the source to absorb or add heat
However take caution that when assigning a temperature, the result will always be this temperature. The unknown will be the amount of heat power absorbed/rejected
There is also the option for wall temperature in Boundary Condition when specifying Real Wall
how flow simulation in room incubator eeg
how flow simulation in room incubator eeg