1. A method for controlling an operation of an air-conditioning system generating airflow in a conditioned environment, comprising: determining values of the airflow measured in the conditioned environment during the operation of the air-conditioning system; selecting, from a set of regimes predetermined for the conditioned environment, a regime of the airflow matching the measured values of the airflow; selecting, from a set of models of the airflow predetermined for the conditioned environment, a model of airflow corresponding to the selected regime; modeling the airflow using the selected model; and controlling the operation of the air-conditioning system using the modeled airflow, wherein steps of the method are performed using at least one processor of a controller.