A two-equation turbulence model of turbulent bubbly flows

Multiphase turbulence in bubbly flows: RANS simulations

“…Krepper (2013a) model itself and the model of Troshko and Hassan (2001). The same bubble-272 induced turbulence model is then added to a multiphase Reynolds stress formulation.…”

“…These data extend to air-290 water upward and downward flows in pipes, characterized by both wall-peaked and core-291 peaked void profiles. In the majority of previous studies, validation was mainly achieved 292 against wall-peaked profiles (Troshko and Hassan, 2001;Rzehak and Krepper, 2013a). 293…”

Two-phase computational fluid dynamics analysis of a hypervapotron heatsink for ITER first wall applications

“…Of particular value is a paper by Narumanchi, Troshko, Bharathan and Hassani that includes a detailed discussion of the physics implemented in Fluent with the RPI-boiling model [7,8]. The RPI boiling model is based on the work of Podowski and others [9].…”

Toward a Multiphase Local Approach in the Modeling of Flotation and Mass Transferin Gas-Liquid Contacting Systems

“…Nevertheless, from a practical point of view, second order modeling is still difficult to use and turbulence models based on turbulent viscosity concept, particularly two-equation models, remain widely used in industrial applications. Several two-equation models were developed for turbulent bubbly flows (Lopez de Bertodano et al, 1994;Lee et al, 1989;Morel, 1995;Troshko & Hassan, 2001). All of these models are founded on an extrapolation of single-phase turbulence models by introducing supplementary terms (source terms) in the transport equations of turbulent energy and dissipation rate.…”