stardis

Perform coupled heat transfer calculations
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commit 5d37123f1b41a2fad0194bdcaca4040775097194
parent 0db7951db0bae88d2c361809a8c3a70981c85d67
Author: Christophe Coustet <christophe.coustet@meso-star.com>
Date:   Wed, 22 Apr 2020 16:48:07 +0200

Documentation improvement

Diffstat:
Mdoc/stardis-input.5.txt | 12++++++------
Mdoc/stardis-output.5.txt | 230++++++++++++++++++++++++++++++++++++++++++++++++-------------------------------
2 files changed, 146 insertions(+), 96 deletions(-)

diff --git a/doc/stardis-input.5.txt b/doc/stardis-input.5.txt @@ -28,7 +28,7 @@ DESCRIPTION thermal system. It relies on a line-based ad-hoc syntax. A thermal system is composed of lines of text, each one describing either a -medium (solid or fluid) a frontier, or a boundary (limit condition or +medium (solid or fluid) frontier or a boundary (limit condition or connection between two media). In either case, a description line includes a list of file names that constitute the limit or boundary. The current version of *stardis* only accepts triangle mesh geometry files in *VTK* format. @@ -171,14 +171,14 @@ the same name. EXAMPLES -------- -Define a solid cube with a h boundary. The cube geometry is read from the file -cube.stl and the solid medium properties are lambda=0.1, rho=25, cp=2. The -numerical parameter delta, that is used for solid conductive walks, is 0.05. -The initial temperature of the cube is 0°K and its volumic power is 0. +Define a solid named Cube with a h boundary. The cube geometry is read from +the file cube.stl and the solid medium properties are lambda=0.1, rho=25, cp=2. +The numerical parameter delta, that is used for solid conductive walks, is +0.05. The initial temperature of the cube is 0°K and its volumic power is 0. The boundary properties are emisivity=0, specular-fraction=0, h=10 and external-temperature = 100°K. ....... -SOLID CUBE 0.1 25 2 0.05 0 0 FRONT cube.stl +SOLID Cube 0.1 25 2 0.05 0 0 FRONT cube.stl H_BOUNDARY_FOR_SOLID HdT 0 0 10 100 cube.stl ....... diff --git a/doc/stardis-output.5.txt b/doc/stardis-output.5.txt @@ -24,24 +24,26 @@ stardis-output - output format of stardis(1) results DESCRIPTION ----------- -The *stardis-output* describes the output format of the *stardis*(1) program. +*stardis-output* describes the output format of the *stardis*(1) program. All the data generated by a *stardis*(1) invocation are written to _standard output_. -The type of the data that are generated depends on the option used when +The type of the data that are generated depends on the options used when *stardis*(1) is invoked. When invoked with one of the basic computation options -(*-p*, *-P*, *-m*, *-s* or *-F*), *stardis*(1) output a single Monte-Carlo +(*-p*, *-P*, *-m*, *-s* or *-F*), *stardis*(1) outputs a single Monte-Carlo result. On the opposite, *stardis*(1) ouputs compound results when invoked with option *-S* or *-R*. Additionally, options *-g* and *-D* are output modifiers. +Most if not all complex data output are in VTK [1] format that can be displayed +and manipulated by the open-source software Paraview [2]. Finaly, some special options (*-v*, *-h* or *-d*) that does not involve any computation produce output including information on the *stardis*(1) software -(their ouput will not be described thereafter) or the provided thermal system. +(their ouputs will not be described thereafter) or the provided thermal system. UNITS ----- -As for values in *stardis-input*(5), any physical quantity in output is in the -International System of Units (second, metre, kilogram, kelvin). +As with the values in *stardis-input*(5), any physical quantity in output is in +the International System of Units (second, metre, kilogram, kelvin). OPTIONS ------- @@ -59,7 +61,7 @@ correspondance: *-p*, *-P*, *-m* or *-s* with *-g*: produce <green> -*-p*, *-P*, *-m*, *-s*, *-S* or *-F* with *-D*: produce <thermal-paths> +*-p*, *-P*, *-m*, *-s*, *-S* or *-F* with *-D*: produce <heat-paths> *-R*: produces <image-file> @@ -72,16 +74,19 @@ continue a description next line. However, this trick is not part of the actual output, that continues on a single line. On the other hand, multiple lines not using the *\* convenience in multi-lines descriptions are truly different lines of output. Also, text appearing between quote marks is a -verbatim part of the output, except the quote characters. Finally, text -following the *#* character in description, when not verbatim, is a comment -and is not part of the description. +verbatim part of the output, except the quote characters, *<#something>* +denotes a count (the number of something), and the math symbols '*\+*' +and '***', when not verbatim, are used with the usual meaning (like in +1+<#something>). Finally, text following the *#* character in a description, +when not verbatim, is a comment and is not part of the output. [verse] _______ + <output> ::= <single-MC-result> | <green-output> - | .... - + | <geometry-dump> + | <infrared-image> _______ SINGLE MONTE CARLO @@ -160,107 +165,151 @@ The output in green mode is a made of tables containing the different media and boundaries and their imposed temperatures, fluxes and volumic powers, followed by the paths' history. -DUMP GEOMETRY +GEOMETRY DUMP ------------- A *geometry-file* is generated when *stardis*(1) is invoked with the *-d* option. In this mode, *stardis*(1) outputs the system geometry, as submitted in *stardis-input*(5) description, to _standard output_ in the VTK [1] format. The output geometry is not the concatenation of the various geometry files used in *stardis-input*(5) description. It is the result of a deduplication -process that removes duplicate and degenerated triangles. +process that removes duplicate and degenerated triangles in the submited +geometry. Additionaly, as permitted by the VTK [1] format, the output geometry is decorated with many different properties provided to help users understand the description processing, including possible errors. +If errors are detected, some optional error-related data fields are included +in the geometry file. Some errors report a by-triangle error status, other +errors report a by-enclosure error status. + + +INFRARED IMAGE +-------------- + +When invoked with the *-R* option, *stardis*(1) generates an infrared image of +the system and write it to _standard output_ in VTK [1] file format. The image +is on an XY plane with coordinates in the [0 pixel_count[ range. By convention, +the origine (0,0) pixel is at the top-left corner of the image. + +The result not only includes the computed temperature image, but also includes +a per-pixel computation time image as well as a per-pixel path error count +image and per-pixel standard deviation images for both temperature and +computation time. + +[verse] +_______ +<infrared-image> ::= "# vtk DataFile Version 2.0" + "Infrared Image" + "ASCII" + "DATASET STRUCTURED_POINTS" + "DIMENSIONS" <image-width> <image-height> "1" + "ORIGIN 0 0 0" + "SPACING 1 1 1" + "POINT_DATA" <image-width>*<image-height> + "SCALARS temperature_estimate float 1" + "LOOKUP_TABLE default" + <temperatures> + "SCALARS temperature_std_dev float 1" + "LOOKUP_TABLE default" + <temp_std_devs> + "SCALARS computation_time float 1" + "LOOKUP_TABLE default" + <computation_times> + "SCALARS computation_time_std_dev float 1" + "LOOKUP_TABLE default" + <com_time_std_devs> + "SCALARS failures_count unsigned_long_long 1" + "LOOKUP_TABLE default" + <failures_counts> + +<temperatures> ::= REAL # in [0, INF) + <temperatures> # <image-width> * <image-height> temperatures + +<temp_std_devs> ::= REAL # in [0, INF) + <temperature_std_devs> # <image-width> * <image-height> std_devs + +<computation_times> ::= REAL # in [0, INF) + <computation_times> # <image-width> * <image-height> times + +<comp_time_std_devs> ::= REAL # in [0, INF) + <comp_time_std_devs> # <image-width> * <image-height> std_devs + +<failures_counts> ::= INTEGER # in [0, SAMPLES_COUNT] + <failures_counts> # <image-width> * <image-height> failures_counts +_______ DUMP HEAT PATHS --------------- -When the *stardis*(1) option *-D* is used some of the termal paths (either -successful paths, erroneous paths, or both) sampled carrying out the simulation -are written to _standard output_ after to the computation result. The various -path are written in VTK [1] format, one VTK file per path separated by a -special text line. +When the *stardis*(1) option *-D* is used, some of the heat paths (successful +paths, erroneous paths, or both) sampled during the simulation are written to +files. Each path is written in VTK [1] format, one VTK file per path. The path +description includes vertices' time it it makes sense, that is if the +computation time is not INF. [verse] _______ -<heat-paths> ::= "---" - <heat-path> - [ <heat-paths> ] - -<heat-path> ::= "# vtk DataFile Version 2.0" - "Heat paths" - "ASCII" - "DATASET POLYDATA" - "POINTS" <#vertices> "double" - <path-vertices> - "LINES 1" 1+<#vertices> - <heat-path> - "POINT_DATA" <#vertices> - "SCALARS Vertex_Type float 1" - "LOOKUP_TABLE vertex_type" - <vertices-types> - "LOOKUP_TABLE vertex_type 3" - <color-conduction> - <color-convection> - <color-radiative> - "SCALARS Weight double 1" - "LOOKUP_TABLE default" - <weigths> - "SCALARS Time double 1" - "LOOKUP_TABLE default" - <durations> - "CELL_DATA 1" - "SCALAR Path_type float 1" - "LOOKUP_TABLE path_type" - <path-type> - "LOOKUP_TABLE path_type 2" - <color-error> - <color-success> - -<path-vertices> ::= <real3> - <path-vertices> # <#vertices> vertices - -<heat-path> ::= <#vertices> "0" "1" ... <#vertices>-1 - -<vertices-types> ::= <vertice-type> - <vertices-types> # <#vertices> types - -<weigths> ::= REAL - <weigths> # <#vertices> weigths - -<durations> ::= REAL # in [0, INF) - <durations> # <#vertices> durations - -<real3> ::= REAL REAL REAL - -<vertice-type> ::= 0.0 # for conduction step - | 0.5 # for convection step - | 1.0 # for radiative step - -<path-type> ::= 0.0 # for error path - | 1.0 # for success path - -<color-error> ::= "1.0 0.0 0.0 1.0" # Red -<color-success> ::= "0.0 0.0 1.0 1.0" # Blue - -<color-conduction> ::= "0.0 1.0 1.0 1.0" # Magenta: -<color-convection> ::= "1.0 1.0 0.0 1.0" # Yellow -<color-radiative> ::= "1.0 0.0 1.0 1.0"# Purple -_______ -RENDERING ---------- -When invoked with the *-R* option, *stardis*(1) generates an infrared image -file of the system and write it to _standard output_ in the VTK [1] file -format. +<heat-path> ::= "# vtk DataFile Version 2.0" + "Heat path" + "ASCII" + "DATASET POLYDATA" + "POINTS" <#vertices> "double" + <path-vertices> + "LINES 1" 1+<#vertices> + <heat-path> + "POINT_DATA" <#vertices> + "SCALARS Vertex_Type unsigned_char 1" + "LOOKUP_TABLE default" + <vertices-types> + "CELL_DATA 1" + "SCALAR Path_type unsigned_char 1" + "LOOKUP_TABLE default" + <path-type> + "SCALARS Weight double 1" + "LOOKUP_TABLE default" + <weigths> + [ <vertices-time> ] + +<path-vertices> ::= <real3> + <path-vertices> # <#vertices> vertices + +<heat-path> ::= <#vertices> "0" "1" ... <#vertices>-1 + +<vertices-types> ::= <vertice-type> + <vertices-types> # <#vertices> types + +<weigths> ::= REAL + <weigths> # <#vertices> weigths + +<vertices-time> ::= "SCALARS Time double 1" + "LOOKUP_TABLE default" + <durations> + +----------------- + +<real3> ::= REAL REAL REAL + +<durations> ::= REAL # in [0, INF) + <durations> # <#vertices> durations + +<vertice-type> ::= 0 # CONDUCTION + | 1 # CONVECTION + | 2 # RADIATIVE + +<path-type> ::= 0 # SUCCESS + | 1 # FAILURE + +_______ NOTES ----- 1. VTK file format - <http://www.vtk.org/wp-content/uploads/2015/04/file-formats.pdf> -2. Portable PixMap - <http://netpbm.sourceforge.net/doc/ppm.html> + +2. Paraview softawre - + <https://www.paraview.org/> SEE ALSO -------- *stardis*(1), -*stardis-input*(5) +*stardis-input*(5) +\ No newline at end of file