4.6 Article

On the effect of turbulent fluctuations on precipitation: A direct numerical simulation-population balance study

Related references

Note: Only part of the references are listed.
Article Mechanics

Analysis of turbulent coagulation in a jet with discretised population balance and DNS

Malamas Tsagkaridis et al.

Summary: The objective of this study is to investigate the interaction between turbulence and coagulation through direct numerical simulation (DNS) coupled with the population balance equation (PBE). The study found that correlations due to turbulent fluctuations of particle number density make a significant contribution to the coagulation process.

JOURNAL OF FLUID MECHANICS (2022)

Article Engineering, Chemical

A conservative finite volume method for the population balance equation with aggregation, fragmentation, nucleation and growth

Daniel O'Sullivan et al.

Summary: In this paper, a method for solving the population balance equation (PBE) with various kinetic processes is presented. The method is based on the finite volume scheme and ensures conservation of mass, accurate prediction of size distribution, applicability to non-uniform grids, robustness, and computational efficiency. The treatment of aggregation and fragmentation is discussed, and a coordinate transformation technique is applied to overcome conservation errors. The method is validated with different test cases and demonstrates high accuracy and computational efficiency.

CHEMICAL ENGINEERING SCIENCE (2022)

Article Thermodynamics

Modelling of soot formation and aggregation in turbulent flows with the LES-PBE-PDF approach and a conservative sectional method

Binxuan Sun et al.

Summary: This paper presents a comprehensive approach for modelling soot formation in turbulent flows by incorporating a recently developed conservative finite volume sectional method into the Large Eddy Simulation - Probability Density Function framework. The approach predicts particle size distribution of soot and considers aerosol dynamic processes, turbulence-chemistry interaction, and soot evolution. While the method can reasonably predict certain features of soot formation, there is underprediction in the magnitude of soot volume fraction.

COMBUSTION AND FLAME (2022)

Article Mechanics

On the interaction of turbulence with nucleation and growth in reaction crystallisation

Hin Yan Tang et al.

Summary: The objective of this work is to investigate the interaction between turbulence and the nonlinear processes of particle nucleation and growth that occur in reaction crystallisation. The study used a validated methodology to simulate an experiment where barium sulphate nanoparticles are formed by mixing and reaction in a T-mixer. The results shed light on the interplay of turbulence and precipitation, as well as the importance of resolving nucleation bursts.

JOURNAL OF FLUID MECHANICS (2022)

Article Computer Science, Interdisciplinary Applications

A conservative Eulerian-Lagrangian decomposition principle for the solution of multi-scale flow problems at high Schmidt or Prandtl numbers

M. Leer et al.

Summary: This paper presents a simulation method based on the Eulerian-Lagrangian decomposition principle for turbulent flow with high Schmidt or Prandtl numbers. The method separates the scalar quantity field into low-frequency and high-frequency components using low-pass filtering, and transports them using Eulerian and Lagrangian descriptions respectively, improving simulation efficiency and accuracy.

JOURNAL OF COMPUTATIONAL PHYSICS (2022)

Article Physics, Multidisciplinary

Small-Scale Isotropy and Ramp-Cliff Structures in Scalar Turbulence

Dhawal Buaria et al.

Summary: Passive scalars advected by three-dimensional Navier-Stokes turbulence exhibit a fundamental anomaly in odd-order moments due to characteristic ramp-cliff structures that violate small-scale isotropy. By developing a simple model, it is demonstrated how small-scale isotropy is restored in the large Schmidt number limit, suggesting a possible correction to the Batchelor length scale in the scalar field.

PHYSICAL REVIEW LETTERS (2021)

Article Mechanics

Two level simulation of Schmidt number effect on passive scalar transport in wall-bounded turbulent flows

R. Ranjan et al.

Summary: In this study, the effectiveness of the two-level simulation modeling strategy in turbulent flows with passive scalar mixing is assessed. The TLS model is proven to be capable of simulating passive scalar mixing in turbulent channel flows, demonstrating the evolution of large and small scales of the scalar field in both physical and spectral space. This comprehensive assessment highlights the potential of the TLS model in accurately predicting quantities relevant for modeling of scalar transport.

PHYSICS OF FLUIDS (2021)

Article Thermodynamics

Modelling of soot coalescence and aggregation with a two-population balance equation model and a conservative finite volume method

Binxuan Sun et al.

Summary: The paper aims to develop a population balance approach for accurate modelling of soot formation, with the accuracy of the method validated through experiments. The study finds that the two-PBE approach shows significant improvement in predicting soot morphology.

COMBUSTION AND FLAME (2021)

Article Thermodynamics

A methodology for coupling DNS and discretised population balance for modelling turbulent precipitation

Hin Yan Tang et al.

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW (2020)

Editorial Material Engineering, Chemical

Reduced power consumption in stirred vessels by means of fractal impellers

S. Basbug et al.

AICHE JOURNAL (2018)

Article Physics, Fluids & Plasmas

Resolvent analysis of separated and attached flows around an airfoil at transitional Reynolds number

Nikitas Thomareis et al.

PHYSICAL REVIEW FLUIDS (2018)

Article Mechanics

Nonlinear optimal control of bypass transition in a boundary layer flow

Dandan Xiao et al.

PHYSICS OF FLUIDS (2017)

Article Engineering, Chemical

An explicit adaptive grid approach for the numerical solution of the population balance equation

Fabian Sewerin et al.

CHEMICAL ENGINEERING SCIENCE (2017)

Article Engineering, Mechanical

The Turbulent Schmidt Number

Diego A. Donzis et al.

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME (2014)

Article Engineering, Chemical

Large eddy simulations of mixing effects on the course of precipitation process

Lukasz Makowski et al.

CHEMICAL ENGINEERING SCIENCE (2012)

Article Engineering, Chemical

Direct Simulations of Mixing of Liquids with Density and Viscosity Differences

J. J. Derksen

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2012)

Article Mathematics, Applied

Resolution effects and scaling in numerical simulations of passive scalar mixing in turbulence

D. A. Donzis et al.

PHYSICA D-NONLINEAR PHENOMENA (2010)

Review Thermodynamics

Population balance modelling of polydispersed particles in reactive flows

S. Rigopoulos

PROGRESS IN ENERGY AND COMBUSTION SCIENCE (2010)

Review Thermodynamics

Progress in probability density function methods for turbulent reacting flows

D. C. Haworth

PROGRESS IN ENERGY AND COMBUSTION SCIENCE (2010)

Article Engineering, Chemical

Simultaneous 3D observation of different kinetic subprocesses for precipitation in a T-mixer

Johannes Gradl et al.

CHEMICAL ENGINEERING SCIENCE (2009)

Article Thermodynamics

The low Reynolds number turbulent flow and mixing in a confined impinging jet reactor

Florian Schwertfirm et al.

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW (2007)

Article Engineering, Chemical

PDF method for population balance in turbulent reactive flow

Stehos Rigopoulos

CHEMICAL ENGINEERING SCIENCE (2007)

Article Engineering, Chemical

Multi-scale modeling of a mixing-precipitation process in a semibatch stirred tank

Lars Vicum et al.

CHEMICAL ENGINEERING SCIENCE (2007)

Article Engineering, Chemical

Double-feed semibatch precipitation - Effects of mixing

J. Baldyga et al.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2007)

Article Engineering, Chemical

CFD modelling of nano-particle precipitation in confined impinging jet reactors

E. Gavi et al.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2007)

Article Engineering, Chemical

CFD modelling and scale-up of Confined Impinging Jet Reactors

Emmanuela Gavi et al.

CHEMICAL ENGINEERING SCIENCE (2007)

Article Energy & Fuels

Precipitation of barium sulfate: Experimental investigation about the influence of supersaturation and free lattice ion ratio on particle formation

Martin Kucher et al.

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION (2006)

Article Energy & Fuels

Precipitation of nanoparticles in a T-mixer: Coupling the particle population dynamics with hydrodynamics through direct numerical simulation

Johannes Gradl et al.

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION (2006)

Article Computer Science, Interdisciplinary Applications

A comparative study of high resolution schemes for solving population balances in crystallization

S. Qamar et al.

COMPUTERS & CHEMICAL ENGINEERING (2006)

Article Engineering, Chemical

Design and scale-up of chemical reactors for nanoparticle precipitation

DL Marchisio et al.

AICHE JOURNAL (2006)

Review Chemistry, Multidisciplinary

Simulation of mixing effects in antisolvent crystallization using a coupled CFD-PDF-PBE approach

Xing Yi Woo et al.

CRYSTAL GROWTH & DESIGN (2006)

Article Engineering, Chemical

Predictive simulation of nanoparticle precipitation based on the population balance equation

HC Schwarzer et al.

CHEMICAL ENGINEERING SCIENCE (2006)

Article Engineering, Chemical

Numerical and analytical investigation of barium sulphate crystallization

AA Oncul et al.

CHEMICAL ENGINEERING SCIENCE (2006)

Article Engineering, Chemical

Prediction of aggregation kinetics based on surface properties of nanoparticles

HC Schwarzer et al.

CHEMICAL ENGINEERING SCIENCE (2005)

Article Engineering, Chemical

Tailoring particle size through nanoparticle precipitation

HC Schwarzer et al.

CHEMICAL ENGINEERING COMMUNICATIONS (2004)

Article Engineering, Chemical

Combined experimental/numerical study on the precipitation of nanoparticles

HC Schwarzer et al.

AICHE JOURNAL (2004)

Article Engineering, Environmental

CFD modelling of continuous precipitation of barium sulphate in a stirred tank

Z Jaworski et al.

CHEMICAL ENGINEERING JOURNAL (2003)

Article Engineering, Chemical

Applying a thermodynamic model to the non-stoichiometric precipitation of barium sulfate

L Vicum et al.

CHEMICAL ENGINEERING & TECHNOLOGY (2003)

Article Engineering, Chemical

Barium sulphate agglomeration in a pipe - An experimental study and CFD modeling

J Baldyga et al.

CHEMICAL ENGINEERING & TECHNOLOGY (2003)

Article Engineering, Chemical

On the comparison between presumed and full PDF methods for turbulent precipitation

DL Marchisio et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2001)

Article Engineering, Chemical

Computational fluid dynamics modeling of the precipitation process in a semibatch crystallizer

HY Wei et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2001)

Article Engineering, Chemical

On the simulation of turbulent precipitation in a tubular reactor via computational fluid dynamics (CFD)

DL Marchisio et al.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2001)

Article Engineering, Chemical

Barium sulphate precipitation in a pipe - an experimental study and CFD modelling

J Baldyga et al.

CHEMICAL ENGINEERING SCIENCE (2001)

Article Engineering, Chemical

A PDF modelling of precipitation reactors

L Falk et al.

CHEMICAL ENGINEERING SCIENCE (2001)

Article Engineering, Chemical

Simulation of turbulent precipitation in a semi-batch Taylor-Couette reactor using CFD

DL Marchisio et al.

AICHE JOURNAL (2001)

Article Engineering, Chemical

Simulation of fine particle formation by precipitation using computational fluid dynamics

D Piton et al.

CANADIAN JOURNAL OF CHEMICAL ENGINEERING (2000)

Article Engineering, Chemical

Scale-up of continuous and semibatch precipitation processes

R Zauner et al.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2000)