Line data    Source code

       1           0 : \cond NEVER
       2             : Distributed under the MIT License.
       3             : See LICENSE.txt for details.
       4             : \endcond
       5             : 
       6             : \cond NEVER
       7             : Instructions for adding images or videos:
       8             : 
       9             : 1. Send your media files to a SpECTRE core dev (see CONTRIBUTING.md for details
      10             :    and communication channels). They will place the files in this public Google
      11             :    Drive folder:
      12             :    https://drive.google.com/drive/folders/1xvLplF_pPlkADGfgFNaW_ByVATFv61m-
      13             : 2. Open the media files in Google Drive and get their file IDs. To do this,
      14             :    select [...] > Open in new window > Copy the <FILE_ID> in the URL of the form
      15             :    https://drive.google.com/file/d/<FILE_ID>/view.
      16             : 3. Add a section to this page.
      17             :    - Embed images like this:
      18             :      <img src="https://drive.google.com/thumbnail?id=<FILE_ID>&sz=w<WIDTH>"/>
      19             :      Replace <WIDTH> with the width you want your image to have on the page.
      20             :      Google Drive will automatically provide an image of this size.
      21             :    - Embed videos like this:
      22             :      \htmlonly
      23             :      <iframe src="https://drive.google.com/file/d/18KIEoK8oH6WDifx0cyFkl2ncKijNtaxs/preview" width="640" height="480" allow="autoplay" allowfullscreen></iframe>
      24             :      \endhtmlonly
      25             : 4. Open a pull request to contribute your changes (see CONTRIBUTING.md for
      26             :    details).
      27             : \endcond
      28             : 
      29             : # Gallery {#gallery}
      30             : 
      31             : This page highlights some visualizations of SpECTRE simulations.
      32             : 
      33             : ## Adaptive mesh refinement
      34             : 
      35             : Here's an image of an adaptively refined mesh:
      36             : 
      37             : <img src="https://drive.google.com/thumbnail?id=1ivR2Wbu_RYvHih098waKi6jqx637pSUn&sz=w600"/>
      38             : 
      39             : ## Binary Black Holes
      40             : 
      41             : ### Overview
      42             : 
      43             : Simulations of two black holes orbiting each other and eventually merging using
      44             : the SpECTRE code. SpECTRE uses the Generalized Harmonic formulation of
      45             : Einstein's equations of general relativity to solve this problem. Since we
      46             : expect the solution of Einstein's equations to be smooth for the BBH problem,
      47             : we represent our solution using the Discontinuous Galerkin (DG) method because
      48             : of it's ability to represent smooth functions to high accuracy. Also, DG allows
      49             : SpECTRE to parallelize the BBH problem to exascale.
      50             : 
      51             : \htmlonly
      52             : <figure>
      53             : <img src="https://drive.google.com/thumbnail?id=1Ccz_ZDPTpIsLXh_lGotGBdSLEnc7a__f&sz=w1200"/>
      54             : <figcaption>
      55             : Apparent horizons of an equal mass non-spinning BBH. The
      56             : colorful surface represents the lapse value in the equatorial plane and the
      57             : arrows depict the shift vector. Image credit: Alex Carpenter, CSUF
      58             : </figcaption>
      59             : </figure>
      60             : \endhtmlonly