Publication detail

CFD and Experimental Investigation of Multiphase Mixture Formation in Internal-Mixing Twin-Fluid Atomizers

NOVOSAD, P. MALÝ, M. CEJPEK, O. JEDELSKÝ, J.

English title

CFD and Experimental Investigation of Multiphase Mixture Formation in Internal-Mixing Twin-Fluid Atomizers

Type

Article – other

Language

en

Original abstract

Twin-fluid atomizers with internal mixing provide an efficient solution for atomizing viscous or contaminated liquids without nozzle clogging at reduced compressed gas consumption compared to conventional devices. These atomizers rely on the expansion of gas within a two-phase mixture, the formation of which is a highly unstable process that remains poorly understood. This study investigates the influence of geometric modifications on the internal two-phase mixture formation. Experimental diagnostics are combined with CFD simulations to analyze the mixture dynamics near the atomizer discharge. The mechanisms of bubble creation and breakup are examined. The design modifications proposed extend the operating range for bubbly flow and enable control of bubble size and spray stability, thereby offering practical improvements for atomizer performance.

Keywords in English

twin-fluid; internal-mixing; cfd, volume of fluid; bubbles

Released

2025-10-14

Pages count

1

BIBTEX


@misc{BUT200023,
  author="Pavel {Novosad} and Milan {Malý} and Ondřej {Cejpek} and Jan {Jedelský}",
  title="CFD and Experimental Investigation of Multiphase Mixture Formation in Internal-Mixing Twin-Fluid Atomizers",
  year="2025",
  pages="1",
  note="Article - other"
}