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Forum: OpenFOAM Running, Solving & CFD July 7, 2014, 06:20
Replies: 30
Views: 4,574
Posted By sam.ho
Post Need a paper

Hi,
Anybody is having this paper ?
O. Borm et al., Density based navier stokes solver for transonic
ows," OpenFoam 6th workshop, 2011.

I am in need this the paper . Please share with me .
Forum: OpenFOAM Running, Solving & CFD June 26, 2014, 02:47
Replies: 30
Views: 4,574
Posted By sam.ho
Post Turbo Performance Problem

Hi,

I have improved the quality of mesh and checked the mesh quality before simulation. It gave Mesh OK message. Now simulation is going on.
But i have attached turbo performance code in...
Forum: OpenFOAM Running, Solving & CFD June 24, 2014, 04:22
Replies: 30
Views: 4,574
Posted By sam.ho
Post Output of the command ...

Output of the command

sml5kor@BMH301562:~/OpenFOAM/sml5kor-1.6-ext/run/TURBINE_cyclicGGI_2/finel_merge_2/Case_with_initial_volcity_field_high_k-omega$ checkMesh -allTopology -allGeometry...
Forum: OpenFOAM Running, Solving & CFD June 24, 2014, 03:12
Replies: 30
Views: 4,574
Posted By sam.ho
Post transonicMRFDyMFoam

HI Dowlee,

I have set up the case of radial inflow turbine passage and case is running absolutely fine.

But after convergence whyc there is a difference in mass flows at the inlet and outlet....
Forum: OpenFOAM Running, Solving & CFD May 28, 2014, 06:56
Replies: 30
Views: 4,574
Posted By sam.ho
Post No convergence with transonicMRFDyMFOAM

Hi,

I have simulated the case. Up to 1400 iterations everything went well. Ang got the results almost converged. Which is as follows
Time = 1400
MassFlows: INLET = 0.050998309
MassFlows: ...
Forum: OpenFOAM Running, Solving & CFD May 27, 2014, 04:52
Replies: 30
Views: 4,574
Posted By sam.ho
Post Could you please explain me about rotational sign...

Could you please explain me about rotational sign used in MRDzone file ?
Forum: OpenFOAM Running, Solving & CFD May 23, 2014, 04:19
Replies: 30
Views: 4,574
Posted By sam.ho
Post No convergence

Hi,

I have changed some BC in velocity. As i knew flow rate for my case I gave as follows

INLET
{
type flowRateInletVelocity;
flowRate ...
Forum: OpenFOAM Running, Solving & CFD May 22, 2014, 04:42
Replies: 30
Views: 4,574
Posted By sam.ho
Post Floating point exception (core dumped) in transonicMRFDyMFoam

Hi ,
Here with I have attached BC and Constant files which gives the lower pressure ratio and revolution per second (RPS) as per your suggestion but i am finding Floating point exception (core...
Forum: OpenFOAM Running, Solving & CFD May 21, 2014, 07:36
Replies: 30
Views: 4,574
Posted By sam.ho
Post mass flow problem

Hi,

Now the case is running but gives some error after some 100's of iterations.
The error is as follows

Time = 2000

diagonal: Solving for rho, Initial residual = 0, Final residual =...
Forum: OpenFOAM Running, Solving & CFD May 19, 2014, 09:57
Replies: 30
Views: 4,574
Posted By sam.ho
Post mass flow Out of range

Hi ,
I tried with inletOutlet BC at OUTLET patch and laminar case but the output of mass flow remains the same .. which is as shown below. ...
Forum: OpenFOAM Running, Solving & CFD May 19, 2014, 06:49
Replies: 30
Views: 4,574
Posted By sam.ho
Thank you :) I will contact you through this...

Thank you :)
I will contact you through this mail ID.
Forum: OpenFOAM Running, Solving & CFD May 19, 2014, 05:35
Replies: 30
Views: 4,574
Posted By sam.ho
Post Hi, Really that's not a problem. You are...

Hi,

Really that's not a problem. You are replying and guiding me so i am very thankful to u.
Thank you very much.
Can you share your personnel mail ID if you don't mind ?
Forum: OpenFOAM Running, Solving & CFD May 19, 2014, 05:28
Replies: 30
Views: 4,574
Posted By sam.ho
Post 'outputControlMode' not found in inletMassFlow

Starting time loop

--> FOAM Warning :
From function simpleFunctionObject::simpleFunctionObject
in file simpleFunctionObject/simpleFunctionObject.C at line 108
'outputControlMode'...
Forum: OpenFOAM Running, Solving & CFD May 19, 2014, 04:25
Replies: 30
Views: 4,574
Posted By sam.ho
Post "libsimpleFunctionObjects.so"

functions
(
inletMassFlow
{
type patchMassFlow;
functionObjectLibs
(
"libsimpleFunctionObjects.so"
);
verbose true;
Forum: OpenFOAM Running, Solving & CFD May 19, 2014, 01:28
Replies: 30
Views: 4,574
Posted By sam.ho
Post BC and Constant files

Hi,

Please find the attached BC and Initial values of the case which has run but wrong mass flow. Let me know your feed back upon this .

Regards,
Sam
Forum: OpenFOAM Running, Solving & CFD May 17, 2014, 05:14
Replies: 30
Views: 4,574
Posted By sam.ho
Post I was able to run the case but after 1000...

I was able to run the case but after 1000 iterations I am getting wrong flow rate .

Time = 1000

diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
diagonal:...
Forum: OpenFOAM Running, Solving & CFD May 15, 2014, 02:01
Replies: 30
Views: 4,574
Posted By sam.ho
Hi, 1. Can you provide me the typical...

Hi,

1. Can you provide me the typical boundary condition provided by Borm. ? Means where I can find them.

3. frozen rotor. means MRF method as Borm used in transonicMRFDyMFoam solver .
Forum: OpenFOAM Running, Solving & CFD May 12, 2014, 23:53
Replies: 30
Views: 4,574
Posted By sam.ho
Post Floating point exception (core dumped) in transonicMRFDyMFoam

Dear Dowlee,

I have set up the case for radial inflow turbine passage. I have used cyclic boundary condition for periodic surfaces and overlap GGI between the rotating and stationary parts. ...
Forum: OpenFOAM Running, Solving & CFD April 29, 2014, 01:46
Replies: 30
Views: 4,574
Posted By sam.ho
Hi

Hi Trent,

Have you been able to run transonicMRFDyMFoam case of your's successfully ?

I need some help in this regard.
Can you please help me ?
Showing results 1 to 19 of 19

 
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