version = 1.0;
name = "RD-253";
info = "Test case for RD-253";
generalOptions : 
{
  multiphase = true;
  ions = true;
};
combustionChamberConditions : 
{
  pressure : 
  {
    value = 14.7;
    unit = "MPa";
  };
};
nozzleFlow : 
{
  calculateNozzleFlow = true;
  freezingConditions : 
  {
    calculate = true;
    expansionRatio = 6.0;
  };
  nozzleInletConditions : 
  {
    contractionAreaRatio = 2.36;
  };
  nozzleExitConditions : 
  {
    areaRatio = 26.2;
  };
};
propellant : 
{
  components : 
  {
    ratio : 
    {
      value = 2.7;
      unit = "km";
    };
    oxidizer = ( 
      {
        name = "N2O4(L)";
        massFraction = 1.0;
      } );
    fuel = ( 
      {
        name = "C2H8N2(L),UDMH";
        massFraction = 1.0;
      } );
  };
};