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):

cs_glob_physical_model_flag[CS_COOLING_TOWERS] = 0;

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_ctwr_option_t *ct_opt = cs_get_glob_ctwr_option();
    /* Evaporation model:
       CS_CTWR_NONE None,
       CS_CTWR_POPPE Poppe,
       CS_CTWR_MERKEL Merkel*/
    ct_opt->evap_model = CS_CTWR_POPPE;
    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", /* selction criterion */
        CS_CTWR_COUNTER_CURRENT, /*Type:
                                   CS_CTWR_COUNTER_CURRENT counter current,
                                   CS_CTWR_CROSS_CURRENT cross,
                                   CS_CTWR_RAIN rain zone */
        -1., /* Imposed delta temperature if positive */
        0.1, /* Associated relaxation time */
        36., /* Liquid injected water temperature */
        qw,
        0.2, /* Evaportaion law constant A */
        0.5, /* Evaportaion law constant n */
        surface,
        -1.); /* Leaking factor, not taken into account if negative */
  }