ANSYS: Rocket Nozzle FSI (coupled Thermal Structural) & Harmonic Analysis Tutorial

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Dear Engineers & Engineering students,
With the advent of SpaceX's Falcon Heavy Launch, there is no better time to release this video!
If you are interested in simulations of rocket engine nozzles, this video is for you.
I teach you how to perform a detailed CFD (fluid dynamics), FEA (structural analysis) as well as combined thermo-structural interactions. This means taking the load from a CFD simulation and importing it into the structural analysis. Pressure loads are also applied using isentropic flow relations for a rocket nozzle. Multiple ANSYS tools are required to carry out the simulation namely:
1) Face Split
2) Geometry Slicing
3) MultiZone meshing
A pre-stressed harmonic analysis is also performed here. A harmonic load is simply a load which is time-dependant (i.e. acceleration with a frequency). You can see an example of harmonic loading from the SpaceX Falcon 9 User's Manual (in the Environment section).
I hope you learn something new in ANSYS from this video!
Best Wishes
VDEngineering
My Instagram: / vinayak_desh
My Website: www.vinayakd.com/

[@gouthamsridhar999]

Could you please share the link to the nozzle models, please? Cool video BTW!

[@karanveerverma5360]

Sir, thank you very much for your videos. Highly helping. Sir, kindly make videos on rotating analysis and validation of results after computational analysis. Thanks a lot

[@loretacancela5297]

Hi! I have a question, on the Fluent Set-up i get a warning saying: Flow boundary zone found adjacent to solid zone.
I'm assuming this is because my inlet and outlet are solids, how do I change this.

[@VDEngineering]

Hello, I do not do this anymore since past 3 years. Sorry

[@nicolamenga8943]

Hello. Thank you for the video, it is really useful.
I subscribed to your channel 👍
I have some questions:
1) The pressure at the inlet is 160 KPa. Why in the "Supersonic/Initial gauge pressure" you set 158900 instead of 160000?;
2) The pressure at the inlet is 160 KPa, but in the Pressure Inlet window you set the gauge pressure as 160 KPa. If I understand correctly, this is not a problem because subsequently you set the operating pressure to 0, right?; In fact, absolure pressure (pressure at inlet) = operating pressure + gauge pressure? Right?;
3) 4:29, how ansys compute the velocity value in reference values? Is it an initial estimate of the velocity at inlet section useful to start the iterative calculation?
Thank you ✌

[@chisomnnedimma4849]

What material did you use in your analysis? i had to involve the CTE in my settings then the structure deformed so much

[@leonardoparra202]

you're going kinda fast but thats ok, where is the link to the model ??

[@Pear20I0]

Hi please can you upload a tutorial on how to calculate method of characteristics really require this urgently i have looked around no in depth example on how to determine nozzle contours thank you

[@VDEngineering]

Check this out: ruclips.net/video/83Vg2giyRXo/видео.html

[@jeyananthansakthivelrajan8137]

5:41 refer

[@sanketgore9036]

Can you also post how did you calculate chamber pressure? You showed it's 160 kPa. Could you please tell how did you figure it out?

[@VDEngineering]

Hi, that was a parameter, not something I calculated.

[@vamshi3446]

From where he got the chamber pressure parameters..plz tell me

[@SuperYashraj11]

Can I use this as a research topic in my MTech?
Please please answer for sure. Anybody

[@vamshi3446]

Could you tell me how he got the chamber pressure and chamber temperature parameter...plz tell me

[@SonuGupta-vp7qg]

Sir i am facing an error saying reversed flow and divergence kindly help

[@sundarapandim1104]

kindly post videos about "Numerical Investigation of Swirl Flow in Subsonic Nozzle" in ansys CFD or Fluent..

[@VDEngineering]

No more CFD, sorry

[@alexbc8688]

Hi. Can I be able to develop the same analysis with Ansys APDL ? Thank you

[@Luke07HD]

you tried?

[@krishgajjar6073]

Sir I tried the exact same steps but my tempersture distribution at 8:16 is not matching. What shoul I do ?

[@ogunkucukoglu6175]

Greetings Sir! I want to ask something really important to me. İf you answer me, I really greatful! I'm studying Mechanical Engineering at university and I also interesting in rocket design and engineering. Here's my question; I really want to learn Ansys and Mathlab for my goals, I will talk about it in a moment. How can I do that? (Do you have any tips for learning these programs or any source?) My other question is How can I improve my interest about Rocket systems? Thank you for your time!

[@VDEngineering]

Read this book: Sutton and Biblarz: Rocket Propulsion Elements

[@lassethiellesen1657]

this book is quite interesting too. A little simpler to understand if that is necessary. www.cientificosaficionados.com/libros/cohetes.pdf

[@ogunkucukoglu6175]

Alright, I'm in the right way,as well. Thank you for your time!

[@ogunkucukoglu6175]

Also thank you Lasse . I will look at this book,too!

[@sigmasix09]

Can u please do the acoustic analysis of the same nozzle or chevron nozzle.(important)

[@VDEngineering]

I will look into it, Thanks

[@iulianrobertokarlostudor4182]

Hello,where can I find the geometry? Thanks

[@syedtauseefhaider8344]

Hi sir.
from where to get its geometry :/

[@dr.m.velliangiri3781]

Could pls teach how to design hypersonic nozzle to my students.