Turbulent flows with drops and bubbles: What numerical simulations can tell us—Freeman scholar lecture
Turbulent flows laden withlarge, deformable drops or bubbles are ubiquitous in nature and a
number of industrial processes. These flows are characterized by physics acting at many …
number of industrial processes. These flows are characterized by physics acting at many …
[HTML][HTML] The effect of droplet coalescence on drag in turbulent channel flows
We study the effect of droplet coalescence on turbulent wall-bounded flows by means of
direct numerical simulations. In particular, the volume-of-fluid and front-tracking methods are …
direct numerical simulations. In particular, the volume-of-fluid and front-tracking methods are …
Dynamics and interactions of parallel bubbles rising in a viscoelastic fluid under buoyancy
Three dimensional interface-resolved numerical simulations are performed to investigate
interactions of two buoyancy-driven parallel bubbles rising in an otherwise quiescent …
interactions of two buoyancy-driven parallel bubbles rising in an otherwise quiescent …
On a vertical chain of small bubbles ascending in a viscoelastic fluid
Recently, our direct numerical simulations [Yuan et al.,“Hydrodynamic interaction and
coalescence of two inline bubbles rising in a viscoelastic liquid,” Phys. Fluids 33, 083102 …
coalescence of two inline bubbles rising in a viscoelastic liquid,” Phys. Fluids 33, 083102 …
QEEFoam: A Quasi-Eulerian-Eulerian model for polydisperse turbulent gas-liquid flows. Implementation in OpenFOAM, verification and validation
D Li, Y Wei, D Marchisio - International Journal of Multiphase Flow, 2021 - Elsevier
In this paper we present a new multiphase computational model for polydisperse turbulent
gas-liquid flows. In this model the gas phase is transported by a single convection equation …
gas-liquid flows. In this model the gas phase is transported by a single convection equation …
Numerical simulations of bubbly flows in a vertical periodic channel
In this study, numerical simulations of bubbly flows in an infinitely long vertical channel were
performed. Generally, the upper and lower boundaries of such channels are simplified as …
performed. Generally, the upper and lower boundaries of such channels are simplified as …
Lateral migration of a deformable fluid particle in a square channel flow of viscoelastic fluid
Cross-stream migration of a deformable fluid particle is investigated computationally in a
pressure-driven channel flow of a viscoelastic fluid via interface-resolved simulations. Flow …
pressure-driven channel flow of a viscoelastic fluid via interface-resolved simulations. Flow …
A FFT-accelerated multi-block finite-difference solver for massively parallel simulations of incompressible flows
P Costa - Computer Physics Communications, 2022 - Elsevier
We present a multi-block finite-difference solver for massively parallel Direct Numerical
Simulations (DNS) of incompressible flows. The algorithm combines the versatility of a multi …
Simulations (DNS) of incompressible flows. The algorithm combines the versatility of a multi …
Morphology of clean and surfactant-laden droplets in homogeneous isotropic turbulence
We perform direct numerical simulations of surfactant-laden droplets in homogeneous
isotropic turbulence with Taylor Reynolds number is the droplet characteristic size. We …
isotropic turbulence with Taylor Reynolds number is the droplet characteristic size. We …
A Momentum Balance Correction to the Non-Conservative One-Fluid Formulation in Boiling Flows using Volume-of-Fluid
A proven methodology to solve multiphase flows is based on the one-fluid formulation of the
governing equations, which treats the phase transition across the interface as a single fluid …
governing equations, which treats the phase transition across the interface as a single fluid …