4.7 Article

A complex network framework for studying particle-laden flows

Related references

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

Particle-Laden Turbulence: Progress and Perspectives

Luca Brandt et al.

Summary: This review discusses the recent progress in understanding the physics of particle-laden turbulence, focusing on spherical particles in homogeneous and wall-bounded flows. The analysis of recent data suggests that conclusions from zero gravity conditions cannot be generalized, and the particle response time alone is insufficient to characterize the dynamics of finite-size particles. Further studies are needed to bridge the gap between dilute and concentrated conditions, and to explore the fluid dynamics of suspensions with theoretical tools accounting for both phases.

ANNUAL REVIEW OF FLUID MECHANICS (2022)

Article Multidisciplinary Sciences

Rate of formation of caustics in heavy particles advected by turbulence

Akshay Bhatnagar et al.

Summary: The rate of collision and the relative velocities of colliding particles in turbulent flows play significant roles in various natural phenomena. By conducting direct numerical simulations, this study investigates the rate of formation of singularities (caustics) and finds that it can be approximated as an exponential function when the Stokes number approaches zero.

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES (2022)

Article Mechanics

Investigation into the coherence of flame intensity oscillations in a model multi-element rocket combustor using complex networks

Praveen Kasthuri et al.

Summary: Using complex network theory, we construct weighted networks to capture the coherence of flame dynamics by analyzing flame intensity oscillations. We find that regions with highly correlated flame oscillations tend to connect with each other, forming a core group. These spatiotemporal features help understand self-excited flame response and validate simulations for developing high-performance rocket engines.

PHYSICS OF FLUIDS (2022)

Article Physics, Fluids & Plasmas

Transport of condensing droplets in Taylor-Green vortex flow in the presence of thermal noise

Anu V. S. Nath et al.

Summary: We study the effect of phase change and thermal noise on particle transport in turbulent flows. By using a toy model, we find that heavy particles are centrifuged out of high vorticity regions and into high strain regions. In cellular flows, droplets with small Stokes numbers remain trapped in vortices, while larger droplets move ballistically away from their original positions. The imposition of thermal noise or a finite condensation rate allows droplets with small Stokes numbers to leave their initial vortices. Thermal noise becomes negligible for growing droplets and they achieve ballistic motion when their Stokes numbers reach O(1). Before reaching the ballistic state, droplets move diffusively away from their initial vortices in the presence of thermal noise.

PHYSICAL REVIEW E (2022)

Review Physics, Multidisciplinary

A review on turbulent and vortical flow analyses via complex networks

G. Iacobello et al.

Summary: This review summarizes recent findings on turbulent and vortical flows achieved through the application of complex network techniques, while providing a critical discussion on their potentialities and limitations. This can propel the establishment of complex networks as a widespread tool for turbulence analysis.

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS (2021)

Article Mathematics, Applied

Condensation in the phase space and network topology during transition from chaos to order in turbulent thermoacoustic systems

Shruti Tandon et al.

Summary: In turbulent thermoacoustic systems, the phase space topology during combustion noise state consists of several unstable periodic orbits, which influence the trajectory of the phase space. As order emerges in the dynamics of the system, the number of periodic orbits decreases and their stability increases. The onset of thermoacoustic instability in combustors can be identified using network centrality measures.

CHAOS (2021)

Article Multidisciplinary Sciences

Dynamic mode decomposition of inertial particle caustics in Taylor-Green flow

Omstavan Samant et al.

Summary: In this study, inertial particles in a 2D Taylor-Green flow are considered and their dynamics are characterized using dynamic mode decomposition (DMD) method to determine the particles' Stokes number and estimate their composition. The analysis provides useful insights for studying inertial particles in more complex or turbulent flows, and suggests that the DMD technique can be applied to similar analysis in experimental systems.

SCIENTIFIC REPORTS (2021)

Article Mechanics

Formation mechanism of high-frequency combustion oscillations in a model rocket engine combustor

Satomi Shima et al.

Summary: By studying the formation mechanism of high-frequency combustion oscillations in a model rocket combustor using symbolic dynamics and complex networks, researchers found that pressure fluctuations in the combustor lead to flow velocity fluctuations in the fuel injector, causing periodic ignition of unburnt fuel/oxidizer mixture and significant changes in heat release rate fluctuations. The directional feedback process during the transition and subsequent combustion oscillations was identified using the directionality index of symbolic transfer entropy, shedding light on the physical mechanism behind these phenomena. The thermoacoustic power network provided insights into the transition and combustion oscillations.

PHYSICS OF FLUIDS (2021)

Review Multidisciplinary Sciences

Clustering and self-organization in small-scale natural and artificial systems

Edward Bormashenko et al.

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES (2020)

Article Mechanics

The flow physics of COVID-19

Rajat Mittal et al.

JOURNAL OF FLUID MECHANICS (2020)

Article Mechanics

Life and death of inertial particle clusters in turbulence

Yuanqing Liu et al.

JOURNAL OF FLUID MECHANICS (2020)

Article Chemistry, Physical

Connecting particle clustering and rheology in attractive particle networks

Sebastian Bindgen et al.

SOFT MATTER (2020)

Article Mechanics

Lagrangian network analysis of turbulent mixing

Giovanni Iacobello et al.

JOURNAL OF FLUID MECHANICS (2019)

Review Physics, Condensed Matter

Explosive phenomena in complex networks

Raissa M. D'Souza et al.

ADVANCES IN PHYSICS (2019)

Article Mechanics

Interaction of droplet dispersion and evaporation in a polydispersed spray

S. Sahu et al.

JOURNAL OF FLUID MECHANICS (2018)

Review Physics, Multidisciplinary

Recent Advances of Percolation Theory in Complex Networks

Deokjae Lee et al.

JOURNAL OF THE KOREAN PHYSICAL SOCIETY (2018)

Article Physics, Fluids & Plasmas

Spatial characterization of turbulent channel flow via complex networks

G. Iacobello et al.

PHYSICAL REVIEW E (2018)

Review Mathematics, Interdisciplinary Applications

Network analysis of particles and grains

Lia Papadopoulos et al.

JOURNAL OF COMPLEX NETWORKS (2018)

Article Mechanics

Coherent structure colouring: identification of coherent structures from sparse data using graph theory

Kristy L. Schlueter-Kuck et al.

JOURNAL OF FLUID MECHANICS (2017)

Article Physics, Multidisciplinary

Complex network analysis of time series

Zhong-Ke Gao et al.

Article Mechanics

Network structure of two-dimensional decaying isotropic turbulence

Kunihiko Taira et al.

JOURNAL OF FLUID MECHANICS (2016)

Review Physics, Condensed Matter

Collisional Aggregation Due to Turbulence

Alain Pumir et al.

ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 7 (2016)

Article Mathematics, Applied

Flow networks: A characterization of geophysical fluid transport

Enrico Ser-Giacomi et al.

CHAOS (2015)

Article Mechanics

Caustics and clustering in the vicinity of a vortex

S. Ravichandran et al.

PHYSICS OF FLUIDS (2015)

Article Economics

Financial Networks and Contagion

Matthew Elliott et al.

AMERICAN ECONOMIC REVIEW (2014)

Review Mechanics

Growth of Cloud Droplets in a Turbulent Environment

Wojciech W. Grabowski et al.

ANNUAL REVIEW OF FLUID MECHANICS, VOL 45 (2013)

Article Engineering, Mechanical

Preferential concentration of poly-dispersed droplets in stationary isotropic turbulence

Huan Lian et al.

EXPERIMENTS IN FLUIDS (2013)

Article Mechanics

A Voronoi analysis of preferential concentration in a vertical channel flow

Christopher Nilsen et al.

PHYSICS OF FLUIDS (2013)

Article Multidisciplinary Sciences

Climate Dynamics: A Network-Based Approach for the Analysis of Global Precipitation

Stefania Scarsoglio et al.

PLOS ONE (2013)

Review Mechanics

Analyzing preferential concentration and clustering of inertial particles in turbulence

Romain Monchaux et al.

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW (2012)

Article Engineering, Chemical

Measurements of pollen grain dispersal in still air and stationary, near homogeneous, isotropic turbulence

Lilach Sabban et al.

JOURNAL OF AEROSOL SCIENCE (2011)

Article Mechanics

Preferential concentration of heavy particles: A Voronoi analysis

R. Monchaux et al.

PHYSICS OF FLUIDS (2010)

Article Multidisciplinary Sciences

Contagion in financial networks

Prasanna Gai et al.

PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES (2010)

Editorial Material Multidisciplinary Sciences

Can We Understand Clouds Without Turbulence?

E. Bodenschatz et al.

SCIENCE (2010)

Article Physics, Fluids & Plasmas

Influence of dynamical condensation on epidemic spreading in scale-free networks

Ming Tang et al.

PHYSICAL REVIEW E (2009)

Article Multidisciplinary Sciences

Explosive Percolation in Random Networks

Dimitris Achlioptas et al.

SCIENCE (2009)

Article Physics, Multidisciplinary

Inertial clustering of particles in high-reynolds-number turbulence

Ewe Wei Saw et al.

PHYSICAL REVIEW LETTERS (2008)

Review Physics, Multidisciplinary

Critical phenomena in complex networks

S. N. Dorogovtsev et al.

REVIEWS OF MODERN PHYSICS (2008)

Article Physics, Multidisciplinary

Caustic activation of rain showers

Michael Wilkinson et al.

PHYSICAL REVIEW LETTERS (2006)

Article Mechanics

Dynamics and statistics of heavy particles in turbulent flows

M Cencini et al.

JOURNAL OF TURBULENCE (2006)

Article Thermodynamics

Unsteady two-fluid flow and heat transfer in a horizontal channel

JC Umavathi et al.

HEAT AND MASS TRANSFER (2005)

Article Mechanics

Clustering of aerosol particles in isotropic turbulence

JH Chun et al.

JOURNAL OF FLUID MECHANICS (2005)

Article Multidisciplinary Sciences

Full Lagrangian methods for calculating particle concentration fields in dilute gas-particle flows

DP Healy et al.

PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES (2005)

Article Physics, Multidisciplinary

Caustics in turbulent aerosols

M Wilkinson et al.

EUROPHYSICS LETTERS (2005)

Article Thermodynamics

The significance of particle clustering in pulverized coal flames

NL Smith et al.

PROCEEDINGS OF THE COMBUSTION INSTITUTE (2002)

Article Thermodynamics

Unsteady laminar hydromagnetic fluid-particle flow and heat transfer in channels and circular pipes

AJ Chamkha

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW (2000)