Cooling tower parameters definition

Activate the cooling tower module

As with other predefined physical models, the cooling tower module may be activated by setting the matching value in cs_glob_physical_model_flag, in the cs_user_model function (cs_user_parameters.c):

  {
    /* Activate cooling tower model */
    cs_glob_physical_model_flag[CS_COOLING_TOWERS] = 1;
 
    /* Evaporation model */
    cs_ctwr_option_t *ct_opt = cs_get_glob_ctwr_option();
    ct_opt->evap_model = CS_CTWR_POPPE;
  }

Define exchange zones

Cooling tower exchange zones and their parameters may be defined in the general cs_user_parameters function (cs_user_parameters.c).

The following code block shows an example of definition of a cooling tower exchange zone.

  {
    cs_real_t surface = 0.48 * 6540.; /* 48% of the total disc */
    cs_real_t qw = surface *  2.64; /* Water flow rate (kg/s) */
 
    cs_ctwr_define("2 or 3", /* selection criteria (or NULL) */
                   -1, /* zone_id (or -1) */
                   CS_CTWR_COUNTER_CURRENT,  /* Zone type */
                   -1., /* Imposed temperature delta if positive */
                   0.1, /* Associated relaxation time */
                   36., /* Liquid injected water temperature */
                   qw,
                   0.2, /* Evaporation law constant A */
                   0.5, /* Evaporation law constant n */
                   surface,
                   -1.); /* Leaking factor, ignored if negative */
 
  }