crystal/crystal.html

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      CRYSTAL - Silicon Crystallization Simulation
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      CRYSTAL <br> Silicon Crystallization Simulation
    </h1>

    <hr>

    <p>
      <b>CRYSTAL</b>
      is a FORTRAN90 program which
      simulates the process of creating a crystal of silicon.
    </p>

    <p>
      <b>CRYSTAL</b> carries out a minimization, for which it calls
      <a href = "../../f_src/toms611/toms611.html">TOMS611</a>, a minimization
      algorithm from the ACM TOMS algorithm collection.
    </p>

    <h3 align = "center">
      Related Data and Programs:
    </h3>

    <p>
      <a href = "../../f_src/crystal_plot/crystal_plot.html">
      CRYSTAL_PLOT</a>,
      a FORTRAN90 program which
      creates graphic images of data from <b>CRYSTAL</b> or <b>CRYSTAL_QED</b>.
    </p>

    <p>
      <a href = "../../f_src/crystal_qed/crystal_qed.html">
      CRYSTAL_QED</a>,
      a FORTRAN90 program which
      seeks to minimize a certain objective function during the growth of a
      silicon crystal under the Czochralski process.
    </p>

    <p>
      <a href = "../../f_src/toms611/toms611.html">
      TOMS611</a>,
      a FORTRAN90 library which
      minimizes a function of several variables.
    </p>

    <h3 align = "center">
      Reference:
    </h3>

    <ol>
      <li>
        Suhas Patankar,<br>
        Numerical Heat Transfer and Fluid Flow,<br>
        Taylor and Francis, 1980,<br>
        ISBN: 0891165223,<br>
        LC: QC320.P37
      </li>
      <li>
        Fumio Shimura,<br>
        Semiconductor Silicon Crystal Technology,<br>
        Academic Press, 1989,<br>
        LC: TK7871.85 S523.
      </li>
    </ol>

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      Source Code:
    </h3>

    <p>
      <ul>
        <li>
          <a href = "crystal.f90">crystal.f90</a>, the source code.
        </li>
        <li>
          <a href = "crystal.sh">crystal.sh</a>,
          commands to compile, link and load the source code.
        </li>
        <li>
          <a href = "crystal.txt">crystal.txt</a>, some development notes.
        </li>
        <li>
          <a href = "crystal_dic.txt">crystal_dic.txt</a>, a data
          dictionary.
        </li>
      </ul>
    </p>

    <h3 align = "center">
      Examples and Tests:
    </h3>

    <p>
      <ul>
        <li>
          <a href = "crystal_output.txt">crystal_output.txt</a>,
          the output file.
        </li>
        <li>
          <a href = "crystal_rs.txt">crystal_rs.txt</a>, a restart file.
        </li>
      </ul>
    </p>

    <h3 align = "center">
      List of Routines:
    </h3>

    <p>
      <ul>
        <li>
          <b>MAIN</b> is the main program for CRYSTAL.
        </li>
        <li>
          <b>DUMMY</b> is a dummy subroutine needed as formal input to CRYFUN.
        </li>
        <li>
          <b>CRYFUN</b> evaluates the cost function for the minimizing software.
        </li>
        <li>
          <b>ADAPT</b> executes MAGG, the multizone adaptive grid generation.
        </li>
        <li>
          <b>CUBIC</b> constructs a cubic spline through data.
        </li>
        <li>
          <b>DIFLOW</b> computes the convection-diffusion coefficient.
        </li>
        <li>
          <b>DOAREA</b> computes the area of the control volumes.
        </li>
        <li>
          <b>FINDP</b> finds the boundary nodes for a Neumann BC.
        </li>
        <li>
          <b>FLUX</b> computes the value of the flux of various quantities.
        </li>
        <li>
          <b>GAMSOR</b> sets the coefficients for the transport problems.
        </li>
        <li>
          <b>GRADNT</b> calculates gradients at the primary nodes.
        </li>
        <li>
          <b>INIDAT</b> sets the initial values of certain data.
        </li>
        <li>
          <b>INIGRD</b> makes an initial assignment of the grid points XC, YC.
        </li>
        <li>
          <b>INITL</b> estimates quantities at control volume interfaces.
        </li>
        <li>
          <b>MOVGRD</b> calculates the new position of the interface and free surface.
        </li>
        <li>
          <b>OUTPUT</b> prints information about the current solution.
        </li>
        <li>
          <b>PMOD</b> extends pressure values from primary nodes to corner nodes.
        </li>
        <li>
          <b>PRDAT</b> prints out the initial values of certain data.
        </li>
        <li>
          <b>RESID</b> computes the linear equation residual at interior primary nodes.
        </li>
        <li>
          <b>RSWRIT</b> writes out restart information.
        </li>
        <li>
          <b>SETCST</b> computes a portion of the cost functional.
        </li>
        <li>
          <b>SETGEO</b> calculates various geometric quantities.
        </li>
        <li>
          <b>SETUP</b> calculates the coefficients of the equations, and solves them.
        </li>
        <li>
          <b>SETX</b> locates the primary nodes from the corner nodes.
        </li>
        <li>
          <b>SOLVE1</b> sets or modifies the linear system to be handled by SOLVE2.
        </li>
        <li>
          <b>SOLVE2</b> is the tridiagonal matrix solver.
        </li>
        <li>
          <b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
        </li>
      </ul>
    </p>

    <p>
      You can go up one level to <a href = "../f_src.html">
      the FORTRAN90 source codes</a>.
    </p>

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    <i>
      Last revised on 26 November 2006.
    </i>

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