# Documentation du code de simulation numérique SUNFLUIDH

## Web LIMSI

sunfluidh:instantaneous_fields_listing_namelist_setup

## Namelist "Instantaneous_Fields_Listing"

This data set defines the instantaneous fields of the physical quantities that the user wants to record as results of simulation.
The recording rate is defined with the variable “Field_Recording_Rate” that belongs to the namelist “Simulation_Management”.
The files of instantaneous fields are written in binary format. They are named in the form res_xxxxxxx_yyyyy.d. 'yyyyy' is the subdomain number for simulations based on the MPI domain-decomposition approach, 'xxxxxxx' is the file number.
Don't forget to set the boolean data “End_of_Data_Block” at the end of the namelist. The value is “.false.” by default. A “.true.” value means the end of the data set when several namelists are used to define several records of instantaneous fields.

### Full data set of the Namelist

  &Instantaneous_Fields_Listing  Name_of_Field = "U" , Recording_Enabled = .true.  /      !--- First velocity component

### Name_of_Field

• Type : String of six characters (maximum)
• This data names the physical quantity to record. This name must match with the lookup table of the code which is composed of 18 pre-selected physical quantities.
• “U ” : Velocity component along the I-direction
• “V ” : Velocity component along the J-direction
• “W ” : Velocity component along the I-direction
• “T ” : Temperature
• “P ” : Pressure
• “RHO ” : Density of the fluid
• “divU ” : Divergence of the velocity field
• “divRU ” : Divergence of the momentum field
• “PHI ” : Pressure increment ($P^{n+1}-P^n$)
• “drho ” : Part of the source term of the Poisson's equation linked to the mass variation. For expert users only.
• “SCR_P ” : Source term of the Poisson's equation. For expert users only.
• “S_RAD ” : Radiative source term (when radiative heat transfer is considered in some specific simulations)
• “MU ” : Dynamic viscosity of the fluid
• “MU_SG ” : subgrid dynamic viscosity associated to the LES model selected.
• “TRACE ” : Passive tracer or distance function used in the context of two-phase flow simulation with a level-set approach
• “Te ” : Electronic temperature (simulation of ionized gas)
• “rho_e ” : density of electrons (simulation of ionized gas)
• “roehe ” : Electronic enthalpy (simulation of ionized gas)
• In the case of multi-species flows, instantaneous fields of species mass fraction can be recorded. for that set the name of the species already used in the namelist “Species_Properties” in the variable “Name_of_Field.