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July 4, 2024 at 4:37 pmquantum FieldSubscriber
Hi Guys I was wondering if someone could please show me how I can make a 2 spool turbofan engine and a rocket engine and the CFD i can do for both of them as I intend to do this for my final year project? That would be grateful.
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Thx
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July 5, 2024 at 10:54 amRobForum Moderator
Have a look in the Learning content to get an idea of what can be done, and then review the solver tutorials. You may need to revise your plan depending on what you actually need to learn from the models: modelling a whole engine isn't trivial.Â
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July 8, 2024 at 2:14 pmquantum FieldSubscriber
Hi Rob
Thx for replying, I tried to look for some resources in the Learning content but I couldn't necessarily find the one that would be beneficial for my idea unless you know one which you can recommend to me?
Also I was wondering would it be possible to make my 2 spool turbofan engine and a rocket engine on Solidworks (if I can make it) and then transfer it over to Ansys CFX to do my CFD on it? But even then what kind of settings do I apply to do the CFD on them, i hope thats something you can guide me with?
 But also do you by any chance know how I can make a 2 spool turbofan engine and a rocket engine or nozzle on Ansys mechanical so that I can do CFD on them?
Â
Thx
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July 12, 2024 at 2:11 pmRobForum Moderator
You can build in CAD and transfer into Ansys tools, just check the available formats as Student doesn't have a full set of CAD readers.Â
Re the Learning material - you may well need all of it. You'll not find everything you need in a specific set of lectures but rather it'll be spread over several.Â
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July 15, 2024 at 10:41 amquantum FieldSubscriber
Hi Rob
So whats a CAD reader (in simple terms) and how do i check the available formats and do you mean for solidworks to transfer into Ansys?
Please could you attach the link of what your talking about (the learning material stuff for the a/c engine) so that it becomes more easier to know where exactly im suposed to find what your telling me to look for specifically?
And also suppose ive managed to make an engine and i want to do CFD on it, can you show me or tell me the settings i have to put and the things that i can vary for me to do a successful CFD on it please (like in order if possible)?
Thx
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July 15, 2024 at 1:17 pmRobForum Moderator
If you open the geometry tool and then look at the import options you'll see a pull down list. Student only has the basics, so (I think) Parasolid, IGES and Step; the University licences may well have ACIS, Solidworks etc.Â
Re the learning materials - look in Fluids and then work though the Introductory content, and then (probably) turbulence and anything else that looks useful (reactions possibly). Rockets fall into the "exercise caution" part of our Export rules so I can't give any details.Â
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July 16, 2024 at 6:59 pmquantum FieldSubscriber
Hi Rob
In the learning materials section- there's quite a few introductory courses such as : Turbulence modelling in Ansys fluent,getting started with ansys fluent, foundations in Fluid Dynamics using Ansys Fluent, geometry prep for fluids simulation in Ansys discovery and Ansys fluent meshing watertight geometry workflow etc, these are some of the few I found and there are more.
But are these the type of courses your suggesting I look at?
if so are these courses just a powerpoint with a ton of theory in it or do they include a practical demo of them doing CFD on things especially an a/c engine (Because like i said before im trying to learn/understand how i could do some CFD on an a/c engine and not learn a bunch of theorey)?
Also we use Ansys CFX at uni not discoverey or Fluent so are these going to be of any help, if so which one would you say is the closes one to CFX out of the two?
Also what is the "exercise caution" bit and why cant we students access it for learning purposes?
Thx
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July 17, 2024 at 8:58 amRobForum Moderator
The courses are a mix of theory and practical use of the various Ansys tools. We generally focus on the latter in commercial training, but because students have a range of backgrounds we've added more theory to allow everyone to understand.Â
CFX and Fluent have much the same functionality. CFX is currently favoured for turbo (for historical reasons), whereas Fluent has wider use, and may be a better option depending on your career plans. If you have local CFX help and your Prof can use it then by all means use CFX. I don't use CFX with any level of expertise, so rely on colleagues; I do have some Fluent experience and know it's just a case of learning the interface & some quirks.Â
Rockets are in the dual use category for Export Law. Therefore I'm not permitted to offer any guidance as an employee of a US company in public (ie on the Forum).Â
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July 20, 2024 at 5:07 pmquantum FieldSubscriber
Hi Rob
Thx for getting back
When you say CFX is favoured for turbo, you mean as in turbomachinery (what do you mean when you say for historical reasons)? Well, my university uses CFX so what can i do to help myself be better at it in order to do CFD on an aircraft engine and rocket nozzle? (so in terms of resources because the resources on the Ansys learning materials is pretty much for Ansys fluent and not CFX?) (youtube isnt much of a help either) Because unless you could help in some way or someone, im not quite too sure on what to do.
Â
And in simple terms because im from the UK and not USÂ what does the following thing mean "Rockets are in the dual use category for Export Law. Therefore I'm not permitted to offer any guidance as an employee of a US company in public (ie on the Forum). " and so who exactly is allowed access to it?
Â
Thx
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July 22, 2024 at 10:06 amRobForum Moderator
Turbo is turbomachinery - ie the high speed spinning bits in a GT engine. There are some CFX materials, and other than the software training most of the Fluent courses will be applicable to CFX, albeit with a different interface. The Ansys Learning Hub (subscription service) has more content, but you can get the basics done with the AIS materials.Â
I work for Ansys, which is a US company. Dual use, in simple terms, are applications that can have a civilian or military use. Rockets, drones and a few other topics fall under that: you can fly a drone to take a few photographs or use them to deliver explosives, hence dual use. Whilst you may be in the UK (as am I) not everyone on the Forum is, hence I must work within certain constraints.Â
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