|
[Sponsors] |
![]() |
![]() |
#1 |
New Member
Join Date: Aug 2017
Posts: 2
Rep Power: 0 ![]() |
I have chosen to study about which designs of grid fins (triangular or rectangular) and which material (titanium or aluminum) allow the fin to perform better/sustain higher stress at a higher AOA more efficiently(measuring temperature and stress).
So, this means I have to learn CFD, which I currently am. What I am wondering is, will CFD allow me to see which design is better by comparing the temperature/stress points on the grid fin, and if so, how can I set up the environment to simulate it going through different Mach speeds (7, 5, 2, and 0.2 specifically)? What specific inputs are needed to get accurate data in the environment or CAD design (I know there's a lot of inputs like mesh, viscosity, conductivity, specific heat ect)? Or some variables I have no idea on measuring like temperature in the atmosphere. I know this is a lot, but any help would be great. Thanks! |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Senior Member
Join Date: Aug 2014
Location: Germany
Posts: 292
Rep Power: 14 ![]() |
This is advanced stuff, even for experienced CFD people. There is a lot of theory involved in this and a lot can go wrong on the CFD site. I would stronlgy suggest as you say you are a CFD newbie to simplify the problem first and try to obtain some form of validation data to asses the CFD results. Frictional heat, fluid solid interaction, conjugated heat transfer, compressibilty, shock etc. is highly advanced. I would start with subsonic, incompressible. This should give first qualitative impressions for the designs. Is the goal to obtain drag forces here maybe?
|
|
![]() |
![]() |
![]() |
![]() |
#3 | |
New Member
Join Date: Aug 2017
Posts: 2
Rep Power: 0 ![]() |
Quote:
Last edited by Harvey; August 29, 2017 at 21:53. |
||
![]() |
![]() |
![]() |
![]() |
#4 |
Senior Member
Join Date: Aug 2014
Location: Germany
Posts: 292
Rep Power: 14 ![]() |
I'm not really sure what your aiming at with your posts. Are you asking if in general it is possible to simulate this stuff, if so, yes it is possible and it's done. If you're asking if Autodesk is capeable, im not quite sure how good this software is at supersonic stuff and the like. Ask at Autodesk for benchmarks.
If you're asking how well your simulation is in the end, i mentioned that you will need validation data, without that i would not even concider simulating anything. Good luck. |
|
![]() |
![]() |
![]() |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
CFD newbie | Mohammed Attya | Main CFD Forum | 0 | January 21, 2014 13:55 |
Guideline for a Newbie in CFD programming | Orkun | Main CFD Forum | 2 | September 7, 2013 07:49 |
Where do we go from here? CFD in 2001 | John C. Chien | Main CFD Forum | 36 | January 24, 2001 21:10 |
ASME CFD Symposium, Atlanta, July 2001 | Chris R. Kleijn | Main CFD Forum | 0 | August 21, 2000 04:49 |
Which is better to develop in-house CFD code or to buy a available CFD package. | Tareq Al-shaalan | Main CFD Forum | 10 | June 12, 1999 23:27 |