Output & Visualization¶

All output files are written to fortran_new/result/<case_name>/.

Output Files¶

File	Description	When
`<case>_output.txt`	Iteration-by-iteration text log	Every time step
`<case>_vtkmov{N}.vtk`	Binary VTK structured grid	Every `outputintervel` steps
`<case>_timing_report.txt`	CPU time breakdown by module	End of simulation
`<case>_memory_report.txt`	Peak memory usage (VmHWM, VmRSS)	End of simulation
`<case>_defect_report.txt`	Defect fraction summary	End of simulation
`<case>_maxtemp.vtk`	Max temperature field (VTK)	End of simulation
`<case>_defect.vtk`	Defect classification field (VTK)	End of simulation
`<case>_thermal_history.txt`	Temperature at 10 monitoring points	Every time step
`<case>_thermal_history.png`	Temperature evolution plot	End of simulation

output.txt Format¶

Each time step produces a 4-line block:

  time  iter  time/iter  tot_iter  res_enth  res_mass  res_u  res_v  res_w  [res_spec]
 2.10E-05   60    0.006        60   1.2E-04   5.0E-02  1.3E-02  ...

  Tmax        umax       vmax         wmax       length       depth     width
  1594.47   0.00E+00    0.00E+00    0.00E+00   ...

  north  south  top  toploss  bottom  west  east  hout  accu  hin  heatvol  ratio
    0.0    0.0    0.0    0.0    0.0    0.0    0.0   0.0   0.0   0.0   0.0   0.00

progress%  beam_posx  beam_posy  beam_posz  power  scanspeed  speedx  speedy
     0.70  5.258E-04  2.000E-03  7.000E-04  300.0    1.230    1.230    0.000

Field	Description
`res_enth`	Enthalpy equation residual
`res_mass`	Mass conservation (pressure correction) residual
`res_u/v/w`	Momentum residuals
`res_spec`	Species residual (only when `species_flag=1`)
`Tmax`	Peak temperature in domain (K)
`umax/vmax/wmax`	Peak velocities (m/s)
`length/depth/width`	Melt pool dimensions (m)
`ratio`	Energy balance ratio (should be ~1.0)
`progress%`	Simulation progress (%)

VTK Files¶

Binary structured-grid VTK files, viewable in ParaView.

Scalar Fields¶

Field Name	Description	Unit	Always
`T`	Temperature	K	Yes
`vis`	Viscosity	Pa*s	Yes
`diff`	Thermal diffusivity	m^2/s	Yes
`den`	Density	kg/m^3	Yes
`solidID`	Solidification track ID	-	Yes
`local`	Local solver region marker	-	Yes
`concentration`	Species mass fraction (C=1: primary)	-	species_flag=1
`tsolid_field`	Composition-dependent solidus	K	species_flag=1

Vector Fields¶

Field Name	Description	Unit
`Velocity`	Flow velocity (interpolated to cell centers)	m/s

Opening in ParaView¶

File → Open → select <case>_vtkmov*.vtk
Click "Apply"
Select scalar/vector field from dropdown
Use animation controls to step through time

Useful ParaView Filters

Threshold: Show only melt pool (T > 1563)
Slice: Cut through domain to see cross-sections
Glyph: Visualize velocity vectors
Calculator: Compute derived quantities (e.g., T - 1563 for superheat)

Timing Report¶

============================================
  PHOENIX Module Timing Report
============================================
  Total iterations (itertot): 17055
  Total CPU time:     2513.425 s
  Total wall time:      765.089 s
--------------------------------------------
  Module              |   Time(s)   |   Ratio(%)
--------------------------------------------
             mod_prop |     440.355  |   17.52%
             mod_sour |     406.017  |   16.15%
             ...
           mod_species|       4.355  |    0.17%

Memory Report¶

============================================
  PHOENIX Memory Report
============================================
  VmPeak:  ...   (peak virtual memory)
  VmHWM:   ...   (peak physical RAM — use this to size your machine)
  VmRSS:   ...   (current physical RAM at report time)
  VmData:  ...   (heap + stack, excludes shared libraries)

Defect Report¶

  === Defect Analysis (maxtemp_determ) ===
  Defect fraction:           X.XXXXXX %
  Lack-of-fusion fraction:   X.XXXXXX %
  Keyhole porosity fraction: X.XXXXXX %

Spatial distribution available in <case>_defect.vtk and <case>_maxtemp.vtk.