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4.4.6 Hydrodynamics (tensor viscosity)
4.4.6.1 rhd_vis_density_p01
  
  (``rhd viscosity density parameter 01'')
  in rhd_vis_module.F90. 
Category: selection of approximation. 
Choose formula for density average at cell boundary in tensor-viscosity routines.
  Values:
  
0: rhomean=min(rholeft,rhoright)
 
1: (default) rhomean=0.5 * (rholeft + rhoright)
  
 
  (``rhd viscosity timing 01'')
  in rhd_vis_module.F90. 
Category: additional output. 
Produce timing information for 2D/3D tensor-viscosity routines.
  It should not be used in conjunction with OpenMP.
  Values:
  
undefined: (default) no timing information
 
defined: call subroutines to measure elapsed time