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-   -   I HAVE WRITTEN A 2D EULER SOLVER (https://www.cfd-online.com/Forums/main/15135-i-have-written-2d-euler-solver.html)

prapanj April 30, 2008 00:01

I HAVE WRITTEN A 2D EULER SOLVER
 
HI

I HAVE WRITTEN A 2D UNSTRUCTURED EULER SOLVER. IT USES TRIANGULAR MESH, READS THE MESH IN COBALT FORMAT, WRITES THE OUTPUT IN TECPLOT CELL-CENTERED FORMAT.

IT CAN DEAL WITH ONLY 2 BOUNDARY TYPES AS OF NOW- FARFIELD AND WALL. SCHEME USED IS ROE'S SCHEME. I HAVE RUN IT OVER A NUMBER OF TEST CASES AND FOUND SATISFACTORY RESULTS.

COULD SOMEONE TELL ME IF IT CAN BE OF ANY HELP TO CFD-ONLINE.COM? DO U SUGGEST SUBMITTING IT TO THIS SITE?

PRAPANJ

cfdxue April 30, 2008 00:19

Re: I HAVE WRITTEN A 2D EULER SOLVER
 
Hi

which TEST CASES have you solved....??

cfdxue

prapanj April 30, 2008 15:15

Re: I HAVE WRITTEN A 2D EULER SOLVER
 
Well,

I have solved, 1. subsonic flow over RAE2822 airfoil, transonic airfoil 2. transonic flow over the same 3. flow over wedge(15 degree) (oblique shock) 4. prandtl meyer expansion over 15 degree convex corner

A.K. May 1, 2008 02:53

Re: I HAVE WRITTEN A 2D EULER SOLVER
 
If you used the explicit time-stepping, then your code is of the same category as NSC2KE open code by B. Mohammadi. If the time-stepping is implicit, then your code might be of interest to CFD community indeed.

cfdxue May 4, 2008 07:03

Re: I HAVE WRITTEN A 2D EULER SOLVER
 
Nowadays, I am also solving test cases. I have solved following test cases:

1. rearward step,

2. blunt body and

3. compression corner 7.5 degree

all are high supersonic.

I am interested to solve your test case 3 & 4. may you please provide me their reference.

I am using Harten-Yee TVD and ACM schemes.

we may compare our results with experimental data and could make some conclusion.

Hoping positive response from you.

cfdxue


crazy August 11, 2011 08:21

Need a 2D euler solver
 
hii...i have just started to learn cfd....i need a 2D euler eqn solver..plz post if u hv one

panou August 13, 2011 07:11

Which method do you use in your code? Finite volume?

If you use finite volume without reconstruction technique , you have first order accuracy. Therefore if you want to take more accurate results you must do very dense mesh in high gradient regions. Also you haven't problem with shock capturing due to the monotonicity of all first order schemes.

seyedashraf August 15, 2011 03:32

Quote:

Originally Posted by cfdxue
;55001
Nowadays, I am also solving test cases. I have solved following test cases:

1. rearward step,

2. blunt body and

3. compression corner 7.5 degree

all are high supersonic.

I am interested to solve your test case 3 & 4. may you please provide me their reference.

I am using Harten-Yee TVD and ACM schemes.

we may compare our results with experimental data and could make some conclusion.

Hoping positive response from you.

cfdxue


it seems like your numerical method is FVM
am I wrong?
I'm very interested in TVD schemes and would like to utilize it in different numerical methods.
If you both were cfd-online users we would exchange some Experiments etc ;)

gchnhn September 27, 2011 13:55

I need your code to study
 
plz send me a copy and your detailed deduction process
tx a lot

gchnhn@gmail.com

ljnpu October 26, 2011 08:17

Would you please send me a copy?
I am a new learner who is writing a 2D EULER SOLVER.
I use the Finite Volume method,and Jameson's central scheme
But I have some questions in farfield boundary conditions.
Many thanks!
ljnpu@foxmail.com

LBMer_Young October 26, 2011 08:41

I need your code for study
 
Would you please send me a copy?
I apply the hybrid FVM-LBM to solve the Euler equations, but i have some troubles in the computation of the gradients in boundary.
Thank you very much!
229344870@qq.com

ljnpu October 26, 2011 09:15

Quote:

Originally Posted by prapanj
;54954
HI

I HAVE WRITTEN A 2D UNSTRUCTURED EULER SOLVER. IT USES TRIANGULAR MESH, READS THE MESH IN COBALT FORMAT, WRITES THE OUTPUT IN TECPLOT CELL-CENTERED FORMAT.

IT CAN DEAL WITH ONLY 2 BOUNDARY TYPES AS OF NOW- FARFIELD AND WALL. SCHEME USED IS ROE'S SCHEME. I HAVE RUN IT OVER A NUMBER OF TEST CASES AND FOUND SATISFACTORY RESULTS.

COULD SOMEONE TELL ME IF IT CAN BE OF ANY HELP TO CFD-ONLINE.COM? DO U SUGGEST SUBMITTING IT TO THIS SITE?

PRAPANJ

Would you please send me a copy?
I am a new learner who is writing a 2D EULER SOLVER.
I use the Finite Volume method,and Jameson's central scheme
But I have some questions in farfield boundary conditions.
Many thanks!
ljnpu@foxmail.com

illuminati5288 January 31, 2012 16:33

2d Euler turbine blade passage
 
Hello,

I am coding a 2D euler code with Roe flux in a turbine blade passage. The roe flux on its own works perfectly (specifying a single left and single right state). however when implemented in the turbine blade solver and looping over the edges of a cell, the residuals go to NaN..

Could you please tell me why this happens/

Thx

Tony12 July 24, 2014 15:30

Prapanj,

In your 2D Euler Roe scheme, are you solving 1D (3 eigenvectors) in each x and y directions (decoupled), or are you solving the 2D Euler equation coupled x and y? I should mention that I'm solving this on a structured grid.

Thanks


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