DEVELOPMENT AND VALIDATION OF THE CALCULATION CODE FOR THE BUBBLE FLOWS MODELLING BASED ON TWO-VELOCITY TWO-TEMPERATURE MODEL WITH INTERFACIAL AREA TRANSPORT EQUATION
The results of the CATEQ (Code with Area Transport EQuation) thermo-hydraulics code development are presented in this article. In this code, interfacial area is calculated according to the transport equation of this area that allows to calculate interfacial area value in every local point of considered flow in any point of time using flow regimes map and criteria relations. This equation takes into account mechanical interactions of disperse particles such as random collision coalescence, coalescence of accelerated bubbles group with a leading bubble in its trace, turbulent impact under the influence of the turbulent eddies. It has been performed CATEQ numerical simulation of the experiment, which was devoted to measurements of the interfacial area concentration in upward adiabatic bubbly air-water flow in a vertical pipe.