154 lines
9.1 KiB
Markdown
154 lines
9.1 KiB
Markdown
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<!-- Begin breadcrumb -->
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<ul class="uk-breadcrumb">
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<li><a href="{{ "/pages/tutorial/index.html" | relative_url }}">Tutorials & Examples</a></li>
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<li><span>Stratigraphic Hex Mesh Tutorial</span></li>
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</ul>
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<!-- End breadcrumb -->
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<!-- Begin image -->
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<img data-src="{{ "/pages/tutorial/stratigraphy/images/21_tet_01_exo_blocks.png" | relative_url }}" width="639" height="525" alt="" uk-img>
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<br/>
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<!-- End image -->
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<h2 id="dump-exo" class="uk-h3 uk-margin-remove">10.2 Write ExodusII Files</h2>
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Write the tet mesh in Exodus II format. This format defines materials as blocks
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and is element based.
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The node properties will be ignored. The below image shows the Exodus mesh
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(read with GMV or ParaView) with material blocks shown in 'exploded' view.
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<!-- Lightbox -->
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<div class="uk-child-width-1-2@m" uk-grid uk-lightbox="animation: slide">
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<div>
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<a class="uk-inline" href="{{ "/pages/tutorial/stratigraphy/images/21_tet_01_exo_blocks_ex.png" | relative_url }}" data-caption="Exodus cells 'exploded' by material blocks">
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<img src="{{ "/pages/tutorial/stratigraphy/images/21_tet_01_exo_blocks_ex.png" | relative_url }}" alt="">
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</a>
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</div>
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</div>
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We can define the boundary faces for this mesh by extracting the 2D external
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surface and writing the element and face id for each. These can be written as
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sets based on element selection.
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In this example we use `settets/normal` to assign values 1-6 to the faces
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based on normal directions where `1=bot`, `2=top`, `3=right`, `4=back`, `5=left`,
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`6=front`. Define element sets for top, bottom, and lump sides
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all together for set 3. Write the faceset relation for each element set.
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```
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define / FILENAME / ss3_sides.faceset
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define / SS_ID / 3
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cmo / copy / mo_tmp / mo_surf
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cmo / select / mo_tmp
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eltset / e_keep / itetclr / eq / SS_ID
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eltset / e_delete / not / e_keep
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rmpoint / element / eltset get e_delete
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rmpoint / compress
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dump / avs2 / FILENAME / mo_tmp / 0 0 0 2
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cmo / delete / mo_tmp
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define / FILENAME / ss1_bottom.faceset
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define / SS_ID / 1
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cmo / copy / mo_tmp / mo_surf
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cmo / select / mo_tmp
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eltset / e_keep / itetclr / eq / SS_ID
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eltset / e_delete / not / e_keep
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rmpoint / element / eltset get e_delete
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rmpoint / compress
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dump / avs2 / FILENAME / mo_tmp / 0 0 0 2
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cmo / delete / mo_tmp
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define / FILENAME / ss2_top.faceset
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define / SS_ID / 2
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cmo / copy / mo_tmp / mo_surf
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cmo / select / mo_tmp
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eltset / e_keep / itetclr / eq / SS_ID
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eltset / e_delete / not / e_keep
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rmpoint / element / eltset get e_delete
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rmpoint / compress
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dump / avs2 / FILENAME / mo_tmp / 0 0 0 2
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cmo / delete / mo_tmp
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```
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Write the Exodus II mesh with the faceset files. This mesh and associated
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face sets can be viewed with GMV or ParaView.
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```
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dump/exo/ mesh_fs.exo / MO_MESH / / / facesets &
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ss1_bottom.faceset, ss2_top.faceset, ss3_sides.faceset
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```
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Check the summary report to see that mesh quantities are as expected.
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The report shows 6 element blocks (materials) and 3 side sets with appropriate face counts.
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```
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Title: LAGRIT TO EXODUSII
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number of dimension: 3
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number of nodes: 115547
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number of elements: 651950
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number of edges: 0
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number of edge blocks: 0
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number of element blocks: 6
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number of face blocks: 0
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number of node sets: 0
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number of edge sets: 0
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number of element sets: 0
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number of side sets: 3
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number of face sets: 0
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number of node maps: 0
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number of edge maps: 0
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number of face maps: 0
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number of element maps: 0
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------------------------------------------
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EXPSS loop:
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1 Side Set tag: 1 Faces: 4098
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2 Side Set tag: 2 Faces: 4640
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3 Side Set tag: 3 Faces: 11812
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------------------------------------------
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Done ExodusII Side Sets Total: 3
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```
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Image show the Exodus face sets (side sets) with bottom (blue), top (red), and sides (light blue).
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<!-- Lightbox -->
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<div class="uk-child-width-1-2@m" uk-grid uk-lightbox="animation: slide">
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<div>
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<a class="uk-inline" href="{{ "/pages/tutorial/stratigraphy/images/21_tet_01_exo_bndry_faces.png" | relative_url }}" data-caption="Exodus side sets: bottom (blue), top (red), and sides (light blue).">
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<img src="{{ "/pages/tutorial/stratigraphy/images/21_tet_01_exo_bndry_faces.png" | relative_url }}" alt="">
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</a>
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</div>
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</div>
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<ul class="uk-pagination">
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<li><a href="{{ "/pages/tutorial/stratigraphy/step_10_fehm.html" | relative_url }}"><span class="uk-margin-small-right" uk-pagination-previous></span> Previous</a></li>
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</ul>
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<!-- Sidebar -->
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<div class="tm-sidebar-right uk-visible@l">
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<div uk-sticky="offset: 160" class="uk-sticky uk-active uk-sticky-fixed" style="position: fixed; top: 160px; width: 200px;">
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<ul uk-scrollspy-nav="closest: li; scroll: true; offset: 100" class="uk-nav uk-nav-default tm-nav uk-nav-parent-icon">
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/index.html" | relative_url }}">Index</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_01.html" | relative_url }}">1. Building a Hex Mesh</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_02.html" | relative_url }}">2. Define Boundaries Using Point Sets</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_03.html" | relative_url }}">3. Constructing Stratigraphy</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_04.html" | relative_url }}">4. Map Surfaces to Mesh</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_05.html" | relative_url }}">5. Constructing a Fault</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_06.html" | relative_url }}">6. Truncate with Polyline</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_07.html" | relative_url }}">7. Refine Fault</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_08.html" | relative_url }}">8. Insert Wells</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_09.html" | relative_url }}">9. Convert Hex Mesh to Tet</a></li>
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<li class=""><a href="{{ "/pages/tutorial/stratigraphy/step_10_fehm.html" | relative_url }}">10.1 Write FEHM Files</a></li>
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<li class="uk-active"><a href="#dump-exo">10.2 Write ExodusII Files</a></li>
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<li class="uk-nav-divider"></li>
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<!---->
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<li><a href="{{ "/pages/tutorial/stratigraphy/images/gallery.html" | relative_url }}" target="_blank"><span uk-icon="icon: image" class="uk-margin-small-right uk-icon"></span> <span class="uk-text-middle">Image Gallery</span></a></li>
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<li><a href="https://github.com/lanl/LaGriT/issues" target="_blank"><span uk-icon="icon: warning" class="uk-margin-small-right uk-icon"><svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" data-svg="warning"><circle cx="10" cy="14" r="1"></circle><circle fill="none" stroke="#000" stroke-width="1.1" cx="10" cy="10" r="9"></circle><path d="M10.97,7.72 C10.85,9.54 10.56,11.29 10.56,11.29 C10.51,11.87 10.27,12 9.99,12 C9.69,12 9.49,11.87 9.43,11.29 C9.43,11.29 9.16,9.54 9.03,7.72 C8.96,6.54 9.03,6 9.03,6 C9.03,5.45 9.46,5.02 9.99,5 C10.53,5.01 10.97,5.44 10.97,6 C10.97,6 11.04,6.54 10.97,7.72 L10.97,7.72 Z"></path></svg></span> <span class="uk-text-middle">Report issue</span></a></li>
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<li><a href="mailto:lagrit-dev@lanl.gov" target="_blank"><span uk-icon="icon: commenting" class="uk-margin-small-right uk-icon"><svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" data-svg="commenting"><polygon fill="none" stroke="#000" points="1.5,1.5 18.5,1.5 18.5,13.5 10.5,13.5 6.5,17.5 6.5,13.5 1.5,13.5"></polygon><circle cx="10" cy="8" r="1"></circle><circle cx="6" cy="8" r="1"></circle><circle cx="14" cy="8" r="1"></circle></svg></span> <span class="uk-text-middle">Get help</span></a></li>
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</ul>
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</div>
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</div>
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