function nu = constants ( )

%*****************************************************************************80
%
%% CONSTANTS returns user-definable flow constants.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    26 March 2007
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Output, real NU, the kinematic viscosity.
%
  nu = 0.01;

  return
end