Updated… I’ll keep adding to this.
Thank you… sir.
Sir I needed help regarding icing of NACA0012 airfoil , I am following this https://pdfs.semanticscholar.org/599e/78ee9196ce174d7ee2d021b88e7beb8986be.pdf
According to this I need to use Lewint LEWICE to do the same before simulation, how to I proceed ?
Is this type of icing simulation possible with Simscale?
Hi @dhruvism, unfortunately, I have never used LEWICE so I don’t really know how it works… Did a google search but was unable to find a download, do you know where I can get a copy?
Essentially if it generates a geometry from the using simulation and you need results from it then yes SimScale could run that external flow simulation but if you are asking if SimScale can do an icing simulation the answer is to my knowledge no. If we had phase change in multiphase flow the answer might have been different.
Looking forward to your reply,
Darren
Greetings Sir
I would like to thank you for taking time to reply.
- Regarding the software , LEWICE is used by NASA so you’d need special permission to access that. So there’s a free alternative to LEWICE which I found called LEWINT, but I’m not able to understand the interface so please help!.
It can be downloaded here
ftp://ftp.lightlink.com/pub/dparkins/incoming/LewRel/LewInt104.exe
(official site with file size of 199 mb)
-
According to this project , what is does that is basically inputs the CAD file and sets the conditions for icing and alters its geometry ( which I couldn’t understand) which can be made into a file and input for simulation.( this is where Simscale or Fluent comes into play I think)
-
Regarding my project , I need to include icing in the NACA0012 airfoil and perform simulation and compare it with a wind tunnel testing on a scaled down version of the model of wing.I am trying to recreate the thing mentioned in the following tutorial.
Project : [PDF] The performance of an iced aircraft wing | Semantic Scholar
(PS: The links I provided are completely safe and free for download)
Hi @dhruvism, I downloaded LEWICE I too was also a bit baffled by the user interface and the lack of a decent guide. From the project it looks like this is a very iterative approach, gaining CFD results calculating the ice build up and reiterating until we are happy with the results, just so I know is this a university project or are you looking for means of solving this problem?
Also to note if you are a commercial user then the LEWINT is just the GUI to LEWICE and therefore you do need a licence to use it after the 2 week trial.
Kind regards,
Darren
Yes Sir, I’m doing this for my university minor project , but I was also not able to understand how the LEWINT software works. They have a really poor tutorial. Anyways, thanks for your reply.
@sjoshi, can we do anything like this in simscale? I found the following paper:
looks like thin film propagation can be done in OpenFOAM, is there an iterative approach or something we can use in current implementation to do wing icing?
Cheers,
Darren
Hi @dhruvism got LEWINT working finally:
If you want I could write a bit in the above post about setting it up and getting a geometry together for analysis in simscale?
Kind regards,
Darren
1 Like
And if you want me to do this let me know roughly how long you want to run for and atmospheric conditions etc… I found these resources helpful:
CFD Simulations of an Airfoil With Leading Edge Ice Accretion
Yes Sir , please do .I 'll be highly obliged
The input for this simulation
Flight height = 2400 m (8000 feet),
Air velocity = 66.7 m/s (130 KCAS)
Temperature = -5°C
Rain droplet size = 25 micrometer
Cloud liquid water content (LWC) of 0.5 g/m
Flight Time = 45 mins.
Ice shape formed= Horn type
Also mention the steps required for geometry creation and analysis using Simscale
Thanks in advance
1 Like
Hi @dhruvism, just one more thing is this 0 angle of attack? If I don’t here shortly I’ll presume 5 degrees AoA or something just for example 
Darren
Angle of Attack is not known , you can take 20 degrees
Hello there
Does anyone know or have the skin friction coefficient (Cf [-]) data for NACA 0012 airfoil between 0-10 degree Angle of attack at 4 million Re
even if the data is empirical or CFD simulation it is ok and for atlleast one angle of attack.
Any help is appreciated
Hi @vbhargava!
Does that help?
Source: http://what-when-how.com/wp-content/uploads/2011/07/tmp1A092.jpg
Best,
Jousef
Sir,
My thesis is about NACA 65-009 Axial compressor cascade. I’ve already done the model in design modeler, ANSYS.
How do i show corner separation (leading to corner stall at the Hub) by varying angle of attacks and surface roughness. Could you tell me this in detail, how to go about this? Which parameters should i consider to show it, which turbulence model? I wanted to do it on ANSYS CFX.
What inputs should i be giving to show pressure, velocity and streamlines contours showing corner separation ( at the junction of the suction surface and trailing edge). I had previously used 99 kpa as input and 121kpa as output.
Thanks in advance
aerodynamics
Hi biljiczop
for geometry creation, you can use any CAD Tool. You can also find any NACA Airfoil here:
for the implementation into SimScale you can follow along with this Tutorial.
Best regards Sebastian