'choking effect with busemann airfoil' simulation project by e0625598

e0625598 · January 6, 2018, 9:02pm

I created a new simulation project called 'choking effect with busemann airfoil':

this simulation predict the hysteresis phenomena when a buseman airfoil will accelerate above the specific choking mach number and decelerate to sub sonic speed.

the simulations will done with rhoCentralFoam with zero viscosity (Euler-Equations)

At first a coarse mesh with around 50k cells is used.

More of my public projects can be found here.

jousefm · January 6, 2018, 9:02pm

Hi @e0625598!

I would be very interested to see the outcome of your simulations! I looked at some papers and webpages and this is a really interesting topic we could validate here on SimScale.

Have you already had a look at Busemann-Type Biplane for Avoiding Choked Flow? Are you working with some data you are trying to validate?

Looking forward to achieve something nice here and put that in our Project Spotlight section!

All the best!

Jousef

e0625598 · January 8, 2018, 2:28pm

Hello @jousefm,

i knew this paper. Some years ago, i hold a presentation about “Busemann Biplane and its improvements” at class of Helmut Sobieczky at TU Wien.

But, at first i have to run some simulations about “shock tube” cases, finding the right/stable boundary conditions and appropriate Courant Number for the rhoCentralFoam solver.

With this information it is easier starting a more complicated case.

Best regards
e0625598

jousefm · January 8, 2018, 2:59pm

Hi @e0625598!

Do you mind sharing your presentation with me? Feel free to inbox me.

I am keeping an eye on your simulation to see how you are setting it up as I never heard of the Busemann Biplanes before. Please keep me up-to-date and we will hopefully see some nice post-processing results from you soon!

Kind regards,

Jousef