Добрый день!
при расчете горения в солвере выдает сообщение:
+--------------------------------------------------------------------+
| Newton's method warnings at: END OF TIME STEP |
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| |
| Newton's method failed to converge while computing the variables |
| listed below. In each case, the solver continued with the variable |
| field as it was on the final iteration. |
| |
| If this situation persists, you might try decreasing the Newton |
| iteration underrelaxation factor. This can be changed by setting |
| one of the following parameters for your mixture: |
| |
| Temperature : "Constitutive Relation Under Relaxation" |
| Pressure : "Newton Pressure Under Relaxation" |
| |
+--------------------------------------------------------------------+
| |
| Location Name : Default Domain Default |
| Mesh location : BELG257/IP |
| Routine : UNBURNT_FORM |
| Variable Name : Temperature |
| Last 3 Changes : 1.00751E-02 1.00751E-02 1.00751E-02 |
| Tolerance : 1.0000E-02 |
| Status : STALLED |
| Max Iterations : 100 |
| |
+--------------------------------------------------------------------+
| |
| Location Name : Default Domain |
| Mesh location : VERTICES |
| Routine : UNBURNT_FORM |
| Variable Name : Temperature |
| Last 3 Changes : 4.03005E-02 4.03005E-02 4.03005E-02 |
| Tolerance : 1.0000E-02 |
| Status : STALLED |
| Max Iterations : 100 |
| |
+--------------------------------------------------------------------+
| |
| Location Name : Default Domain |
| Mesh location : VERTICES |
| Routine : UPD_LOCALE_PROP1 |
| Variable Name : Temperature |
| Last 3 Changes : 4.07507E-02 4.07507E-02 4.07507E-02 |
| Tolerance : 1.0000E-02 |
| Status : STALLED |
| Max Iterations : 100 |
| |
+--------------------------------------------------------------------+
Как его понимать?
Встречал такое. У меня это сообщение о несходимости метода Ньютона не приводило к остановке с ошибкой. Поэтому была возможность остановить решение с сохранением res-файла. Его я открыл в поспроцессоре, посмотрел поле температуры и увидел локальные зоны нефизично высоких температур. Причина была в изоляции доменов от внешнего. Источник тепла есть, стока нет - в результате несходимость.
Можете пойти тем же путем.
Спасибо, попробую.
Если есть доступ на портал пользователей, посмотрите дополнительно Solution #2040318.
Добрый день!
что делать? При расчете в солвере выдает сообщение:
This run of the CFX Release 17.2 Solver started at 03:45:05 on 20 Dec
2017 by user User on ASUS (intel_xeon64.sse2_winnt) using the command:
"C:\Program Files\ANSYS Inc\v172\CFX\bin\perllib\cfx5solve.pl" -batch
-ccl runInput.ccl -fullname "Fluid Flow CFX_003"
Release 17.2
Point Releases and Patches installed:
ANSYS, Inc. Products Release 17.2
ANSYS Mechanical Products Release 17.2
ANSYS Autodyn Release 17.2
ANSYS LS-DYNA Release 17.2
ANSYS AIM Release 17.2
ANSYS CFX (includes ANSYS CFD-Post) Release 17.2
ANSYS Fluent (includes ANSYS CFD-Post) Release 17.2
ANSYS TurboGrid Release 17.2
ANSYS Polyflow (includes ANSYS CFD-Post) Release 17.2
ANSYS Forte Release 17.2
ANSYS Chemkin Release 17.2
ANSYS ICEM CFD Release 17.2
ANSYS Aqwa Release 17.2
ANSYS Composite PrepPost Release 17.2
ANSYS Icepak (includes ANSYS CFD-Post) Release 17.2
AutoCAD Release 17.2
ACIS Release 17.2
Catia, Version 4 Release 17.2
Catia, Version 6 Release 17.2
Creo Elements/Direct Modeling Release 17.2
Inventor Release 17.2
JTOpen Release 17.2
NX Release 17.2
Parasolid Release 17.2
Creo Parametric (formerly Pro/ENGINEER) Release 17.2
Solid Edge Release 17.2
SolidWorks Release 17.2
ANSYS, Inc. License Manager Release 17.2
Setting up CFX Solver run ...
+--------------------------------------------------------------------+
| |
| CFX Command Language for Run |
| |
+--------------------------------------------------------------------+
LIBRARY:
MATERIAL: Aluminium
Material Group = CHT Solids, Particle Solids
Option = Pure Substance
Thermodynamic State = Solid
PROPERTIES:
Option = General Material
EQUATION OF STATE:
Density = 2702 [kg m^-3]
Molar Mass = 26.98 [kg kmol^-1]
Option = Value
END
SPECIFIC HEAT CAPACITY:
Option = Value
Specific Heat Capacity = 9.03E+02 [J kg^-1 K^-1]
END
REFERENCE STATE:
Option = Specified Point
Reference Specific Enthalpy = 0 [J/kg]
Reference Specific Entropy = 0 [J/kg/K]
Reference Temperature = 25 [C]
END
THERMAL CONDUCTIVITY:
Option = Value
Thermal Conductivity = 237 [W m^-1 K^-1]
END
END
END
MATERIAL: Water
Material Description = Water (liquid)
Material Group = Water Data, Constant Property Liquids
Option = Pure Substance
Thermodynamic State = Liquid
PROPERTIES:
Option = General Material
EQUATION OF STATE:
Density = 997.0 [kg m^-3]
Molar Mass = 18.02 [kg kmol^-1]
Option = Value
END
SPECIFIC HEAT CAPACITY:
Option = Value
Specific Heat Capacity = 4181.7 [J kg^-1 K^-1]
Specific Heat Type = Constant Pressure
END
REFERENCE STATE:
Option = Specified Point
Reference Pressure = 1 [atm]
Reference Specific Enthalpy = 0.0 [J/kg]
Reference Specific Entropy = 0.0 [J/kg/K]
Reference Temperature = 25 [C]
END
DYNAMIC VISCOSITY:
Dynamic Viscosity = 8.899E-4 [kg m^-1 s^-1]
Option = Value
END
THERMAL CONDUCTIVITY:
Option = Value
Thermal Conductivity = 0.6069 [W m^-1 K^-1]
END
ABSORPTION COEFFICIENT:
Absorption Coefficient = 1.0 [m^-1]
Option = Value
END
SCATTERING COEFFICIENT:
Option = Value
Scattering Coefficient = 0.0 [m^-1]
END
REFRACTIVE INDEX:
Option = Value
Refractive Index = 1.0 [m m^-1]
END
THERMAL EXPANSIVITY:
Option = Value
Thermal Expansivity = 2.57E-04 [K^-1]
END
END
END
END
FLOW: Flow Analysis 1
SOLUTION UNITS:
Angle Units = [rad]
Length Units = [m]
Mass Units = [kg]
Solid Angle Units = [sr]
Temperature Units = [K]
Time Units = [s]
END
ANALYSIS TYPE:
Option = Steady State
EXTERNAL SOLVER COUPLING:
Option = None
END
END
DOMAIN: POTOK_G
Coord Frame = Coord 0
Domain Type = Fluid
Location = B37
BOUNDARY: Gas Spiral Side 1
Boundary Type = INTERFACE
Location = F38.37
BOUNDARY CONDITIONS:
HEAT TRANSFER:
Option = Conservative Interface Flux
END
MASS AND MOMENTUM:
Option = No Slip Wall
END
WALL ROUGHNESS:
Option = Smooth Wall
END
END
END
BOUNDARY: POTOK_G Default
Boundary Type = WALL
Location = F40.37,F42.37,F43.37,F44.37
BOUNDARY CONDITIONS:
HEAT TRANSFER:
Option = Adiabatic
END
MASS AND MOMENTUM:
Option = No Slip Wall
END
WALL ROUGHNESS:
Option = Smooth Wall
END
END
END
BOUNDARY: in_G
Boundary Type = INLET
Location = inG
BOUNDARY CONDITIONS:
FLOW DIRECTION:
Option = Normal to Boundary Condition
END
FLOW REGIME:
Option = Subsonic
END
HEAT TRANSFER:
Option = Total Temperature
Total Temperature = 470 [C]
END
MASS AND MOMENTUM:
Option = Total Pressure
Relative Pressure = 170000 [Pa]
END
TURBULENCE:
Option = Medium Intensity and Eddy Viscosity Ratio
END
END
END
BOUNDARY: out_G
Boundary Type = OUTLET
Location = outG
BOUNDARY CONDITIONS:
FLOW REGIME:
Option = Subsonic
END
MASS AND MOMENTUM:
Mass Flow Rate = 0.75 [kg s^-1]
Mass Flow Rate Area = As Specified
Option = Mass Flow Rate
END
END
END
DOMAIN MODELS:
BUOYANCY MODEL:
Option = Non Buoyant
END
DOMAIN MOTION:
Option = Stationary
END
MESH DEFORMATION:
Option = None
END
REFERENCE PRESSURE:
Reference Pressure = 1 [atm]
END
END
FLUID DEFINITION: Fluid 2
Material = Water
Option = Material Library
MORPHOLOGY:
Option = Continuous Fluid
END
END
FLUID MODELS:
COMBUSTION MODEL:
Option = None
END
HEAT TRANSFER MODEL:
Option = Thermal Energy
END
THERMAL RADIATION MODEL:
Option = None
END
TURBULENCE MODEL:
Option = SST
END
TURBULENT WALL FUNCTIONS:
Option = Automatic
END
END
END
DOMAIN: POTOK_W
Coord Frame = Coord 0
Domain Type = Fluid
Location = B19
BOUNDARY: Default Fluid Solid Interface in POTOK_W Side 1
Boundary Type = INTERFACE
Location = F22.19
BOUNDARY CONDITIONS:
HEAT TRANSFER:
Option = Conservative Interface Flux
END
MASS AND MOMENTUM:
Option = No Slip Wall
END
WALL ROUGHNESS:
Option = Smooth Wall
END
END
END
BOUNDARY: in_W
Boundary Type = INLET
Location = inW
BOUNDARY CONDITIONS:
FLOW DIRECTION:
Option = Normal to Boundary Condition
END
FLOW REGIME:
Option = Subsonic
END
HEAT TRANSFER:
Option = Total Temperature
Total Temperature = 30 [C]
END
MASS AND MOMENTUM:
Option = Total Pressure
Relative Pressure = 0.2 [MPa]
END
TURBULENCE:
Option = Medium Intensity and Eddy Viscosity Ratio
END
END
END
BOUNDARY: out_W
Boundary Type = OUTLET
Location = outW
BOUNDARY CONDITIONS:
FLOW REGIME:
Option = Subsonic
END
MASS AND MOMENTUM:
Normal Speed = 1.1 [m s^-1]
Option = Normal Speed
END
END
END
DOMAIN MODELS:
BUOYANCY MODEL:
Option = Non Buoyant
END
DOMAIN MOTION:
Option = Stationary
END
MESH DEFORMATION:
Option = None
END
REFERENCE PRESSURE:
Reference Pressure = 1 [atm]
END
END
FLUID DEFINITION: Fluid 2
Material = Water
Option = Material Library
MORPHOLOGY:
Option = Continuous Fluid
END
END
FLUID MODELS:
COMBUSTION MODEL:
Option = None
END
HEAT TRANSFER MODEL:
Option = Thermal Energy
END
THERMAL RADIATION MODEL:
Option = None
END
TURBULENCE MODEL:
Option = SST
END
TURBULENT WALL FUNCTIONS:
Option = Automatic
END
END
END
DOMAIN: SPIRAL
Coord Frame = Coord 0
Domain Type = Solid
Location = B12
BOUNDARY: Default Fluid Solid Interface in SPIRAL Side 2
Boundary Type = INTERFACE
Location = F15.12
BOUNDARY CONDITIONS:
HEAT TRANSFER:
Option = Conservative Interface Flux
END
END
END
BOUNDARY: Gas Spiral Side 2
Boundary Type = INTERFACE
Location = F16.12
BOUNDARY CONDITIONS:
HEAT TRANSFER:
Option = Conservative Interface Flux
END
END
END
BOUNDARY: SPIRAL Default
Boundary Type = WALL
Location = F13.12,F14.12
BOUNDARY CONDITIONS:
HEAT TRANSFER:
Option = Adiabatic
END
END
END
DOMAIN MODELS:
DOMAIN MOTION:
Option = Stationary
END
MESH DEFORMATION:
Option = None
END
END
SOLID DEFINITION: Solid 1
Material = Aluminium
Option = Material Library
MORPHOLOGY:
Option = Continuous Solid
END
END
SOLID MODELS:
HEAT TRANSFER MODEL:
Option = Thermal Energy
END
THERMAL RADIATION MODEL:
Option = None
END
END
END
DOMAIN INTERFACE: Gas Spiral
Boundary List1 = Gas Spiral Side 1
Boundary List2 = Default Fluid Solid Interface in SPIRAL Side 2
Interface Type = Fluid Solid
INTERFACE MODELS:
Option = General Connection
FRAME CHANGE:
Option = None
END
PITCH CHANGE:
Option = None
END
END
MESH CONNECTION:
Option = Automatic
END
END
DOMAIN INTERFACE: Spiral Water
Boundary List1 = Default Fluid Solid Interface in POTOK_W Side 1
Boundary List2 = Gas Spiral Side 2
Interface Type = Fluid Solid
INTERFACE MODELS:
Option = General Connection
FRAME CHANGE:
Option = None
END
PITCH CHANGE:
Option = None
END
END
MESH CONNECTION:
Option = Automatic
END
END
OUTPUT CONTROL:
RESULTS:
File Compression Level = Default
Option = Standard
END
END
SOLVER CONTROL:
Turbulence Numerics = First Order
ADVECTION SCHEME:
Option = High Resolution
END
CONVERGENCE CONTROL:
Length Scale Option = Conservative
Maximum Number of Iterations = 100
Minimum Number of Iterations = 1
Solid Timescale Control = Auto Timescale
Timescale Control = Auto Timescale
Timescale Factor = 1.0
END
CONVERGENCE CRITERIA:
Residual Target = 1.E-4
Residual Type = RMS
END
DYNAMIC MODEL CONTROL:
Global Dynamic Model Control = On
END
END
END
COMMAND FILE:
Version = 17.2
Results Version = 17.2
END
SIMULATION CONTROL:
EXECUTION CONTROL:
EXECUTABLE SELECTION:
Double Precision = No
Large Problem = No
END
INTERPOLATOR STEP CONTROL:
Runtime Priority = Standard
MEMORY CONTROL:
Memory Allocation Factor = 1.0
END
END
PARALLEL HOST LIBRARY:
HOST DEFINITION: asus
Host Architecture String = winnt-amd64
Installation Root = C:\Program Files\ANSYS Inc\v%v\CFX
END
END
PARTITIONER STEP CONTROL:
Multidomain Option = Automatic
Runtime Priority = Standard
MEMORY CONTROL:
Memory Allocation Factor = 1.0
END
PARTITION SMOOTHING:
Maximum Partition Smoothing Sweeps = 100
Option = Smooth
END
PARTITIONING TYPE:
MeTiS Type = k-way
Option = MeTiS
Partition Size Rule = Automatic
END
END
RUN DEFINITION:
Run Mode = Full
Solver Input File = Fluid Flow CFX.def
Solver Results File = \
C:/Users/User/Desktop/123_pending/dp0_CFX_Solution_1/Fluid Flow \
CFX_003.res
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
END
END
END
+--------------------------------------------------------------------+
| |
| Solver |
| |
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| |
| ANSYS(R) CFX(R) Solver |
| |
| Release 17.2 |
| Build 17.2 2016.07.18-16.51-136427 |
| Mon Jul 18 17:04:39 GMTDT 2016 |
| |
| Executable Attributes |
| |
| single-64bit-int32-archfort-optimised-noprof-lcomp |
| |
| (C) 2016 ANSYS, Inc. |
| |
| All rights reserved. Unauthorized use, distribution or duplication |
| is prohibited. This product is subject to U.S. laws governing |
| export and re-export. For full Legal Notice, see documentation. |
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| Job Information at Start of Run |
+--------------------------------------------------------------------+
Run mode: serial run
Host computer: ASUS (PID:5552)
Job started: Wed Dec 20 03:45:08 2017
+--------------------------------------------------------------------+
| License Information |
+--------------------------------------------------------------------+
License Cap: ANSYS CFX Solver (Max 128K Nodes)
License ID: ASUS-User-2476-010894
+--------------------------------------------------------------------+
| Memory Allocated for Run (Actual usage may be less) |
+--------------------------------------------------------------------+
| Real | Integer | Character | Logical | Double
----------+------------+------------+-----------+----------+----------
Mwords | 31.87 | 9.07 | 7.37 | 0.12 | 1.21
Mbytes | 121.58 | 34.61 | 7.03 | 0.46 | 9.22
----------+------------+------------+-----------+----------+----------
+--------------------------------------------------------------------+
| Host Memory Information (Mbytes) |
+--------------------------------------------------------------------+
| Host | System | Allocated | % |
+-------------------------+----------------+----------------+--------+
| ASUS | 8077.53 | 172.89 | 2.14 |
+-------------------------+----------------+----------------+--------+
+--------------------------------------------------------------------+
| ****** Notice ****** |
| The Wall Heat Transfer Coefficient written to the results file for |
| any turbulent phase with heat transfer is based on the turbulent |
| wall function coefficient. It is consistent with the Wall Heat Flux|
| the wall temperature, and the Wall Adjacent Temperature |
| (near-wall temperature). If you would like it to be based on a |
| user-specified bulk temperature instead, please set the expert |
| parameter "tbulk for htc = <value>". |
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| ********* WARNING ********* |
| No control surfaces have been found for the domain interface |
| |
| Gas Spiral |
| |
| If you expect this to occur, please set the INTERSECTION CONTROL |
| CCL parameter 'Permit No Intersection' to work around this message.|
| Non-intersecting interfaces are only supported for 'dynamic' |
| interfaces which are re-intersected at every time step |
| (e.g. transient rotor stator interfaces or non-stationary |
| interfaces in moving mesh cases). |
| |
| Possible setup errors leading to this situation are: |
| 1. An incorrect axis of rotation for a rotating domain or domain |
| interface. |
| 2. A frame change model is used in which there is unequal pitch |
| shapes, or circumferential orientation, but the Pitch Change |
| model is set to None. |
| 3. The transient rotor stator model is used when the geometry |
| does not span 360 degrees and the Pitch Change model is set to |
| 'None'. |
| 4. The detected normal gap between interface sides is larger than |
| the allowed tolerance. See the documentation for controlling |
| this tolerance. |
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| An error has occurred in cfx5solve: |
| |
| The ANSYS CFX solver has terminated without writing a results |
| file. Command on host asus exited with return code 0. |
+--------------------------------------------------------------------+
End of solution stage.
+--------------------------------------------------------------------+
| For CFX runs launched from Workbench, the final locations of |
| directories and files generated may differ from those shown. |
+--------------------------------------------------------------------+
This run of the ANSYS CFX Solver has finished.
Здравствуйте!
У вас проблема с интерфейсом Gas Spiral, возможные причины перечислены в логе. На будущее прошу логи прикладывать в виде файлов и не писать свои вопросы в чужие темы.
Спасибо, учту, первый раз спрашивал на этом сайте)
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