Problems of running Oscillating plate tutorial
Hi everyone,
I tried play the cfx tutorial, Oscillating plate (Tutorial 23 in 12.1-version), in ansys 12.1 linux 64-bits. I couldn use the proper workbench, so I follow the guide of 11.0-version-tutorial (P353-368, Tutorial 21). Every step was completed as the tutorial said. I create my own oscillatingplate.inp after the Ansys, and oscillatingplate.def after Cfx. Turn on the solver, define the run, In Multified tab, the mechanical input file was set to oscillatingplate.inp. and rest setting left as default. Start run. But the solver couldn't do so +--------------------------------------------------------------------+ | An error has occurred in cfx5solve: | | | | ANSYS Solver terminated unexpectedly with return code 32512 | +--------------------------------------------------------------------+ This run of the ANSYS CFX Solver has finished. I tried to play the .pre file given in the example folder to compare. But after a progress bar appear for seconds, there's nothing. I mean literally all the bottom on the tool bar were still in grey. If anyone knows whats I ve done wrong, or the example file has imperfect, would like to share with me, I'll be really appreciated! |
Your error says that the ANSYS solver failed (i.e. the Mechanical solver). Look in that output file for the error.
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Quote:
CFX encountered the error: Read. Fatal error occurred when requesting Total Mesh Displacement for Interface. and cplg_SendCommand failed to send the command: ERROR -- CFX encountered the error: Read. Fatal error occurred when requesting Total Mesh Displacement for Interface. I tried change value of E to larger number. But it still show the same problem. LIBRARY: FLOW: Flow Analysis 1 ANALYSIS TYPE: Option = Transient EXTERNAL SOLVER COUPLING: ANSYS Input File = C:\Documents and Settings\CFD\My Documents\FSI \ training\CFX tutorial23\Trail004\OscillatingPlate.inp Option = ANSYS MultiField COUPLING TIME CONTROL: COUPLING INITIAL TIME: Option = Value Time = 0 [s] END COUPLING TIME DURATION: Option = Total Time Total Time = 5 [s] END COUPLING TIME STEPS: Option = Timesteps Timesteps = 0.1 [s] END END END INITIAL TIME: Option = Coupling Initial Time END TIME DURATION: Option = Coupling Time Duration END TIME STEPS: Option = Coupling Timesteps END END DOMAIN: Default Domain Coord Frame = Coord 0 Domain Type = Fluid Location = B28 BOUNDARY: Default Domain Default Boundary Type = WALL Location = F34.28,F35.28,F36.28,F37.28,F38.28 BOUNDARY CONDITIONS: MASS AND MOMENTUM: Option = No Slip Wall END MESH MOTION: Option = Stationary END END END BOUNDARY: Interface Boundary Type = WALL Location = Interface BOUNDARY CONDITIONS: MASS AND MOMENTUM: Option = No Slip Wall END MESH MOTION: ANSYS Interface = FSIN_1 Option = ANSYS MultiField Receive from ANSYS = Total Mesh Displacement Send to ANSYS = Total Force END END END BOUNDARY: Sym1 Boundary Type = SYMMETRY Location = Sym1 BOUNDARY CONDITIONS: MESH MOTION: Option = Unspecified END END END BOUNDARY: Sym2 Boundary Type = SYMMETRY Location = Sym2 BOUNDARY CONDITIONS: MESH MOTION: Option = Unspecified END END END DOMAIN MODELS: BUOYANCY MODEL: Option = Non Buoyant END DOMAIN MOTION: Option = Stationary END MESH DEFORMATION: Option = Regions of Motion Specified MESH MOTION MODEL: Option = Displacement Diffusion MESH STIFFNESS: Option = Increase near Small Volumes Stiffness Model Exponent = 10 END END END REFERENCE PRESSURE: Reference Pressure = 1 [atm] END END FLUID DEFINITION: Fluid 1 Material = Fluid Option = Material Library MORPHOLOGY: Option = Continuous Fluid END END FLUID MODELS: COMBUSTION MODEL: Option = None END HEAT TRANSFER MODEL: Option = None END THERMAL RADIATION MODEL: Option = None END TURBULENCE MODEL: Option = Laminar END END END INITIALISATION: Option = Automatic INITIAL CONDITIONS: Velocity Type = Cartesian CARTESIAN VELOCITY COMPONENTS: Option = Automatic with Value U = 0 [m s^-1] V = 0 [m s^-1] W = 0 [m s^-1] END STATIC PRESSURE: Option = Automatic with Value Relative Pressure = 0 [Pa] END END END OUTPUT CONTROL: MONITOR OBJECTS: MONITOR BALANCES: Option = Full END MONITOR FORCES: Option = Full END MONITOR PARTICLES: Option = Full END MONITOR POINT: Monitor Point 1 Cartesian Coordinates = 0 [m], 1 [m], 0 [m] Option = Cartesian Coordinates Output Variables List = Total Mesh Displacement X END MONITOR RESIDUALS: Option = Full END MONITOR TOTALS: Option = Full END END RESULTS: File Compression Level = Default Option = Standard END TRANSIENT RESULTS: Transient Results 1 File Compression Level = Default Include Mesh = No Option = Selected Variables Output Variables List = Velocity,Pressure,Total Mesh Displacement OUTPUT FREQUENCY: Option = Every Coupling Step END END END SOLVER CONTROL: ADVECTION SCHEME: Option = High Resolution END CONVERGENCE CONTROL: Maximum Number of Coefficient Loops = 3 Minimum Number of Coefficient Loops = 2 Timescale Control = Coefficient Loops END CONVERGENCE CRITERIA: Residual Target = 1.E-4 Residual Type = RMS END EXTERNAL SOLVER COUPLING CONTROL: COUPLING DATA TRANSFER CONTROL: Convergence Target = 1e-2 Under Relaxation Factor = 0.75 END COUPLING STEP CONTROL: Maximum Number of Coupling Iterations = 10 Minimum Number of Coupling Iterations = 1 SOLUTION SEQUENCE CONTROL: Solve ANSYS Fields = Before CFX Fields END END END TRANSIENT SCHEME: Option = Second Order Backward Euler TIMESTEP INITIALISATION: Option = Automatic END END END END COMMAND FILE: Version = 12.1 Results Version = 12.1 END SIMULATION CONTROL: EXECUTION CONTROL: EXECUTABLE SELECTION: Double Precision = Off END INTERPOLATOR STEP CONTROL: Runtime Priority = Standard MEMORY CONTROL: Memory Allocation Factor = 1.0 END END MFX RUN CONTROL: MFX RUN DEFINITION: MFX Run Mode = Start ANSYS and CFX Process ANSYS Input File = On Restart ANSYS Run = Off END MFX SOLVER CONTROL: ANSYS Installation Root = C:\Program Files\ANSYS Inc\v121\ansys ANSYS License = AA_T_A END END PARALLEL HOST LIBRARY: HOST DEFINITION: aaaaaaa Remote Host Name = AAAAAAAA Host Architecture String = winnt-amd64 Installation Root = C:\Program Files\ANSYS Inc\v%v\CFX END END PARTITIONER STEP CONTROL: Multidomain Option = Independent Partitioning Runtime Priority = Standard EXECUTABLE SELECTION: Use Large Problem Partitioner = Off END MEMORY CONTROL: Memory Allocation Factor = 1.0 END PARTITIONING TYPE: MeTiS Type = k-way Option = MeTiS Partition Size Rule = Automatic END END RUN DEFINITION: Run Mode = Full Solver Input File = C:\Documents and Settings\CFD\My Documents\FSI \ training\CFX tutorial23\Trail004\Fluid Flow.def END SOLVER STEP CONTROL: Runtime Priority = Standard MEMORY CONTROL: Memory Allocation Factor = 1.0 END PARALLEL ENVIRONMENT: Number of Processes = 1 Start Method = Serial END PROCESS COUPLING: Process Name = CFX Host Port = 2000 Host Name = AAAAAAA END END END END |
I have the same error 32512 in this tutorial...
Did You solve the problem? What do You mean by "I think I sorted out the solver issue." ? |
Hi guys!!! Is there anything new about this error code? I am getting this too and it s driving me crazy!
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I am quite sure that there will never be any proper solution because the newer versions of wb are dealing with the FSI setup quite different... and stable when it comes to the tutorials. Nonetheless my personal impression is in 9 of 10 cases it is crashing due to false constraints in FEM or wrong mesh movement on cfd-side.
the error from above is indicating a structural problem so with out the ansys setup there is no way to shed any light on this. Matthias |
Well i should have mentioned that i m getting this error while trying to perform a different fsi problem and not the tutorial..so you are saying that we have to be a little bit lucky..thank you anyway
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transient or steady?
Some thoughts: +Check your displacement at the interfaces via monitorpoints +display the convergence WITHIN each iteration (somewhere near the output options in CFX --> so you can judge about the displacements for every iteration(couplingstepstagger iteration)) +did you try the under-relaxation? +converge the forces at the interfaces less than 0.01 +converge the mesh displacement pretty good (max 1E-5, more iterations 15-20) + write a full backup every timestep/coupling step with "export mesh"-option active to see whats going on + whats the density ratio between solid and fluid (--> added mass effect)? should be enough for now... neewbie |
The analysis is transient and the error appears at first after pressing start button. Partitioning and iteration do not even begin. The ratio is about 2. if that helps, before seting the structural analysis i first perform a thermal analysis on the solid domain in order to apply thermal load on it and then i move to cfx..
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can you post the cfx and ANSYS-solver output?
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Setting up CFX Solver run ...
+--------------------------------------------------------------------+ | | | Processing ANSYS Input File (Running CCL2MF) | | | +--------------------------------------------------------------------+ Created /home/passos/CFX/PhD/deformation/defor1_pending_tasks/dp0_CFX_Solution- _2/Fluid Flow CFX_001.ansys/ANSYS.mf +--------------------------------------------------------------------+ | | | Starting ANSYS Solver | | | +--------------------------------------------------------------------+ +--------------------------------------------------------------------+ | An error has occurred in cfx5solve: | | | | ANSYS Solver terminated unexpectedly with return code 32512 | +--------------------------------------------------------------------+ This run of the ANSYS CFX Solver has finished. |
and the ansys output?
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You are talking about the file having .stdout format? It seems to be empty (0kb). Sorry i am still new at this and i do not know how to open it :(
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okay... to bad. this really sound like ansys crashing in the very first place.
+try to deactivate the force-interaction by setting the cfx under relax to 0 + try to change the order of the loop (there is a setting in cfx-pre that let you decide whether to solve ansys or cfx first) + deactivate the temp. load and start with an unstressed ansys-model, just to see if it starts. PS.:did you have proper licences? |
Yes i use official licences. Thank you very much for being so helpful. I hope all these will do..:)
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Hello it's me again. Neewbie i followed your suggestions and i managed to run a simulation. However, i m getting no wall deformation at all. As you can see what i get for mesh displacement is this:
| SOLVING : Mesh Displacement | ---------------------------------------------------------------------- | Equation | Rate | RMS Res | Max Res | Linear Solution | +----------------------+------+---------+---------+------------------+ | X-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Y-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Z-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 5.9 0.0E+00 OK| +----------------------+------+---------+---------+------------------+ | X-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Y-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Z-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 5.9 0.0E+00 OK| +----------------------+------+---------+---------+------------------+ | X-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Y-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Z-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 5.9 0.0E+00 OK| +----------------------+------+---------+---------+------------------+ | X-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Y-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Z-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 5.9 0.0E+00 OK| +----------------------+------+---------+---------+------------------+ | X-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Y-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 0.0E+00 OK| | Z-Disp | 0.00 | 0.0E+00 | 0.0E+00 | 5.9 0.0E+00 OK| do you know any possible reason why does this happen and how to fix it? |
just guessing but ... looks like there is no displacement?
1# reason because there are no forces (due to false coupling/ hard underrelax.) 2# struct. is to stiff to move by given external (CFD-)Forces so... check for the forces transmitted via the interface, should like this Code:
also check for the maxVal(Total Mesh Displacment)@Interface1 2 3 4 to see if there is anything moving. so you can pin down what´s happening and what´s the reason. First place is to check the interfaces for the forces. If there are any then the "problem" is on the structural side. |
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now,i do FSI ansys,and in transient structural setup,thermal condition is set on structure,when start,i meet this message"Unable to get ANSYS temperature from data-level structure for MultiField analysis",have u face it? could give me some advises. |
Data transfer isn't working
Hi everybody,
I'm implementing the tutorial Two way FSI using ANSYS Fluent Part-1 in https://www.youtube.com/watch?v=DGPmyGFnzhA but I'm having some trouble during the data transfer between the fluid and solid domain, it simply doesn't work and doesn't apear any error (image attached), the solver isn't updating the solution. My licenses are ANSYS ACADEMIC RESEARCH and TEACHING ADVANCED. Does anyone have any idea what the problem may be? I already try other FSI tutorials and the same thing occurs. Could be a problem of software definitions or my license specifications? Thanks in advance |
Try the fluent forum.
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