Hello,
I have been attempting to automate the export of simulated data from ANSYS CFX using a Perl script and CEL (CFX Expression Language). The code is relatively simple: I'm trying to iterate over 120 timesteps with a difference of 100 between each timestep. For each iteration, I load the corresponding timestep and save the data on a specific plane to a separate CSV file.
I have successfully tested the script for 3 timesteps individually, and it works well. However, when I attempt to implement a loop to iterate over all 120 timesteps, I encounter errors that I have been unable to resolve. These errors seem to be preventing the script from executing correctly.
I would greatly appreciate your assistance in troubleshooting and resolving these errors. If needed, I can provide you with the Perl script, the CEL expressions, or any specific error messages that I'm receiving.
Thank you for your help. My email address is: dr.fatemeh.razavi@gmail.com
#THIS ONE WORKS
# Session file started: 2023/06/22 12:37:39
# CFX-21.2
# To avoid unnecessary file pre-processing and modifications, include
# COMMAND FILE at the top of your session file.
# If it is not included, the file is assumed to be older and will be
# modified for backward compatibility.
COMMAND FILE:
CFX Post Version = 21.2
END
PLANE:Plane 1
Apply Instancing Transform = On
Apply Texture = Off
Blend Texture = On
Bound Radius = 0.5 [m]
Colour = 0.75, 0.75, 0.75
Colour Map = Default Colour Map
Colour Mode = Variable
Colour Scale = Logarithmic
Colour Variable = Ragweed.Averaged Volume Fraction
Colour Variable Boundary Values = Conservative
Culling Mode = No Culling
Direction 1 Bound = 1.0 [m]
Direction 1 Orientation = 0 [degree]
Direction 1 Points = 10
Direction 2 Bound = 1.0 [m]
Direction 2 Points = 10
Domain List = /DOMAIN GROUP:All Domains
Draw Contours = Off
Draw Faces = On
Draw Lines = Off
Instancing Transform = /DEFAULT INSTANCE TRANSFORM:Default Transform
Invert Plane Bound = Off
Lighting = On
Line Colour = 0, 0, 0
Line Colour Mode = Default
Line Width = 1
Max = 0.0
Min = 0.0
Normal = 1 , 0 , 0
Number of Contours = 11
Option = XY Plane
Plane Bound = None
Plane Type = Slice
Point = 0 [m], 0 [m], 0 [m]
Point 1 = 0 [m], 0 [m], 0 [m]
Point 2 = 1 [m], 0 [m], 0 [m]
Point 3 = 0 [m], 1 [m], 0 [m]
Range = Global
Render Edge Angle = 0 [degree]
Specular Lighting = On
Surface Drawing = Smooth Shading
Texture Angle = 0
Texture Direction = 0 , 1 , 0
Texture File =
Texture Material = Metal
Texture Position = 0 , 0
Texture Scale = 1
Texture Type = Predefined
Tile Texture = Off
Transform Texture = Off
Transparency = 0.0
X = 0.0 [m]
Y = 0.0 [m]
Z = 1.6 [m]
OBJECT VIEW TRANSFORM:
Apply Reflection = Off
Apply Rotation = Off
Apply Scale = Off
Apply Translation = Off
Principal Axis = Z
Reflection Plane Option = XY Plane
Rotation Angle = 0.0 [degree]
Rotation Axis From = 0 [m], 0 [m], 0 [m]
Rotation Axis To = 0 [m], 0 [m], 0 [m]
Rotation Axis Type = Principal Axis
Scale Vector = 1 , 1 , 1
Translation Vector = 0 [m], 0 [m], 0 [m]
X = 0.0 [m]
Y = 0.0 [m]
Z = 0.0 [m]
END
END
# Sending visibility action from ViewUtilities
>show /PLANE:Plane 1, view=/VIEW:View 1
##################
> load timestep=30888
EXPORT:
ANSYS Export Data = Element Heat Flux
ANSYS File Format = ANSYS
ANSYS Reference Temperature = 0.0 [K]
ANSYS Specify Reference Temperature = Off
ANSYS Supplemental HTC = 0.0 [W m^-2 K^-1]
Additional Variable List =
BC Profile Type = Inlet Velocity
CSV Type = CSV
Case Name = Case 2nd3min7ms
Export Connectivity = Off
Export Coord Frame = Global
Export File = E:/Fatemeh (Live Runs)/BEST CFD Runs/2023-06-05-Transient-\
8Diff-4PartInj-FansSQ-0TO180-7ms/2023-06-05-ExhaustsOnWall-8SwirrlDiffON-\
4Aerosolizers-FansFwBw7msSynchronized-FansSQ_003/CSV Files/303.csv
Export Geometry = On
Export Location Aliases =
Export Node Numbers = Off
Export Null Data = On
Export Type = Generic
Export Units System = Current
Export Variable Type = Current
External Export Data = None
Include File Information = Off
Include Header = On
Location = CeilingWall
Location List = /PLANE:Plane 1
Null Token = null
Overwrite = On
Precision = 8
Separator = ", "
Spatial Variables = X,Y,Z
Variable List = Ragweed.Averaged Volume Fraction
Vector Brackets = ()
Vector Display = Scalar
END
>export
################################
################################
################################
#This one does not work as I added the loop in Perl and it gives me many warnings and errors
# Session file started: 2023/06/20 11:37:01
# CFX-21.2
# To avoid unnecessary file pre-processing and modifications, include
# COMMAND FILE at the top of your session file.
# If it is not included, the file is assumed to be older and will be
# modified for backward compatibility.
COMMAND FILE:
CFX Post Version = 21.2
END
# Session file stopped: 2023/06/20 11:37:15
# Session file started: 2023/06/20 11:37:39
# CFX-21.2
# To avoid unnecessary file pre-processing and modifications, include
# COMMAND FILE at the top of your session file.
# If it is not included, the file is assumed to be older and will be
# modified for backward compatibility.
COMMAND FILE:
CFX Post Version = 21.2
END
PLANE:Plane 1
Apply Instancing Transform = On
Apply Texture = Off
Blend Texture = On
Bound Radius = 0.5 [m]
Colour = 0.75, 0.75, 0.75
Colour Map = Default Colour Map
Colour Mode = Variable
Colour Scale = Logarithmic
Colour Variable = Ragweed.Averaged Volume Fraction
Colour Variable Boundary Values = Conservative
Culling Mode = No Culling
Direction 1 Bound = 1.0 [m]
Direction 1 Orientation = 0 [degree]
Direction 1 Points = 10
Direction 2 Bound = 1.0 [m]
Direction 2 Points = 10
Domain List = /DOMAIN GROUP:All Domains
Draw Contours = Off
Draw Faces = On
Draw Lines = Off
Instancing Transform = /DEFAULT INSTANCE TRANSFORM:Default Transform
Invert Plane Bound = Off
Lighting = On
Line Colour = 0, 0, 0
Line Colour Mode = Default
Line Width = 1
Max = 0.0
Min = 0.0
Normal = 1 , 0 , 0
Number of Contours = 11
Option = XY Plane
Plane Bound = None
Plane Type = Slice
Point = 0 [m], 0 [m], 0 [m]
Point 1 = 0 [m], 0 [m], 0 [m]
Point 2 = 1 [m], 0 [m], 0 [m]
Point 3 = 0 [m], 1 [m], 0 [m]
Range = Global
Render Edge Angle = 0 [degree]
Specular Lighting = On
Surface Drawing = Smooth Shading
Texture Angle = 0
Texture Direction = 0 , 1 , 0
Texture File =
Texture Material = Metal
Texture Position = 0 , 0
Texture Scale = 1
Texture Type = Predefined
Tile Texture = Off
Transform Texture = Off
Transparency = 0.0
X = 0.0 [m]
Y = 0.0 [m]
Z = 1.6 [m]
OBJECT VIEW TRANSFORM:
Apply Reflection = Off
Apply Rotation = Off
Apply Scale = Off
Apply Translation = Off
Principal Axis = Z
Reflection Plane Option = XY Plane
Rotation Angle = 0.0 [degree]
Rotation Axis From = 0 [m], 0 [m], 0 [m]
Rotation Axis To = 0 [m], 0 [m], 0 [m]
Rotation Axis Type = Principal Axis
Scale Vector = 1 , 1 , 1
Translation Vector = 0 [m], 0 [m], 0 [m]
X = 0.0 [m]
Y = 0.0 [m]
Z = 0.0 [m]
END
END
# Sending visibility action from ViewUtilities
>show /PLANE:Plane 1, view=/VIEW:View 1
##################
# Specify the starting timestep and the number of iterations
no warnings 'redefine';
use strict;
my $startTimestep = 24588;
my $numIterations = 5; # Adjust the number of iterations as needed
# Loop to load timesteps with a difference of 100
for (my $i = 0; $i < $numIterations; $i++) {
my $timestep = $startTimestep + ($i * 100);
> load timestep = $timestep
EXPORT:
ANSYS Export Data = Element Heat Flux
ANSYS File Format = ANSYS
ANSYS Reference Temperature = 0.0 [K]
ANSYS Specify Reference Temperature = Off
ANSYS Supplemental HTC = 0.0 [W m^-2 K^-1]
Additional Variable List =
BC Profile Type = Inlet Velocity
CSV Type = CSV
Case Name = Case 2nd3min7ms
Export Connectivity = Off
Export Coord Frame = Global
# Generate the CSV file path
Export File = E:/Fatemeh (Live Runs)/BEST CFD Runs/2023-06-05-Transient-\
8Diff-4PartInj-FansSQ-0TO180-7ms/2023-06-05-ExhaustsOnWall-8SwirrlDiffON-\
4Aerosolizers-FansFwBw7msSynchronized-FansSQ_003/CSV Files/$timestep.csv"
Export Geometry = On
Export Location Aliases =
Export Node Numbers = Off
Export Null Data = On
Export Type = Generic
Export Units System = Curren
Export Variable Type = Current
External Export Data = None
Include File Information = Off
Include Header = On
Location = CeilingWall
Location List = /PLANE:Plane 1
Null Token = null
Overwrite = On
Precision = 8
Separator = ", "
Spatial Variables = X,Y,Z
Variable List = Ragweed.Averaged Volume Fraction
Vector Brackets = ()
Vector Display = Scalar
END
>export
}
################################
################################
SAMPLE ERRORS AND WARNINGS
Variable "$timestep" is not imported at (eval 189) line 11.
Variable "$timestep" is not imported at (eval 189) line 24.
Use of uninitialized value $CUEPost::startTimestep in concatenation (.) or string at (eval 193) line 5.
Use of uninitialized value $CUEPost::numIterations in concatenation (.) or string at (eval 193) line 6.
Use of uninitialized value $CUEPost::i in concatenation (.) or string at (eval 193) line 7.
Use of uninitialized value $CUEPost::i in concatenation (.) or string at (eval 193) line 7.
Use of uninitialized value $CUEPost::numIterations in concatenation (.) or string at (eval 193) line 7.
Use of uninitialized value $CUEPost::i in concatenation (.) or string at (eval 193) line 7.
Variable "$startTimestep" is not imported at (eval 217) line 7.
Variable "$numIterations" is not imported at (eval 217) line 8.
Variable "$i" is not imported at (eval 217) line 9.
Variable "$i" is not imported at (eval 217) line 9.
Variable "$numIterations" is not imported at (eval 217) line 9.
Variable "$i" is not imported at (eval 217) line 9.
Variable "$timestep" is not imported at (eval 217) line 10.
Variable "$startTimestep" is not imported at (eval 217) line 10.
Variable "$i" is not imported at (eval 217) line 10.
Variable "$timestep" is not imported at (eval 217) line 11.
Variable "$timestep" is not imported at (eval 217) line 24.
Variable "$i" is not imported at (eval 221) line 9.
Variable "$i" is not imported at (eval 221) line 9.
Variable "$i" is not imported at (eval 221) line 9.
Variable "$timestep" is not imported at (eval 221) line 10.
Variable "$i" is not imported at (eval 221) line 10.
Variable "$timestep" is not imported at (eval 221) line 11.
Variable "$timestep" is not imported at (eval 221) line 24.
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