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Interphase heat transfer in radiatively heated particle-laden turbulent channel flows
We investigated the interphase heat transfer characteristics in vertical turbulent channel flows laden with radiatively heated inertial particles...
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Leveraging optical activity in visualizing particle-laden flows
In this research, visualization of particles is achieved by leveraging optical activity that is inherent in the helical and crystalline structure of...
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Experimental investigation of heating augmentation by particle kinetic energy conversion in dust-laden supersonic flows
The presence of particles in supersonic flows can cause significant increases in stagnation point heat fluxes (Dunbar et al. in AIAA J 13:908–912,...
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Ultrasound imaging velocimetry in particle-laden flows: counteracting attenuation with correlation averaging
AbstractUltrasound imaging velocimetry (UIV) refers to the technique wherein ultrasound images are analysed with 2D cross-correlation techniques...
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Effect of Stokes number on energy modulation of the fluid in turbulent particle-laden channel flows
The effect of Stokes number on the kinetic energy (KE) budget in particle-laden turbulent channel flows is examined by conducting two-way coupled...
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Velocity measurements in particle-laden high-enthalpy flow using non-intrusive techniques
This research aims at analysing the particle-laden flow of the hypersonic high-enthalpy wind tunnel L2K, situated in Köln at the German Aerospace...
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Numerical study of the near-wall vortical structures in particle-laden turbulent flow by a new vortex identification method-Liutex
This study investigates turbulent particle-laden channel flows using direct numerical simulations employing the Eulerian-Lagrangian method. A two-way...
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Investigation of particle laden gravity currents using the light attenuation technique
An extensional use of the light attenuation technique is described to study the dynamics of particle laden flows. The method is validated against an...
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Particle tracking velocimetry and trajectory curvature statistics for particle-laden liquid metal flow in the wake of a cylindrical obstacle
This paper presents the analysis of particle-laden liquid metal flow around a cylindrical obstacle at different obstacle Reynolds numbers. Particles...
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Particle mass flow determination in dust-laden supersonic flows by means of simultaneous application of optical measurement techniques
Particle mass flow rate and particle mass concentration are key parameters for describing two-phase flows, especially for particle-induced heating...
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Flow Field Characteristics of Particle-Laden Swirling Jets
Particle-laden turbulent jets have various engineering applications such as effluent discharge, wastewater disposal, and marine bed cap**. The flow... -
Simultaneous determination of particle size, velocity, and mass flow in dust-laden supersonic flows
The particle mass concentration and -mass flow rate are fundamental parameters for describing two-phase flows and are products of particle number,...
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Numerical analysis of vortex formation and particle dispersion in a supersonic compressible particle-laden mixing layer
In the study, the quasi 2D-direct numerical simulations (DNS) approach of a supersonic mixing layer of hydrogen–nitrogen flow (upper high-speed) and...
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Gravity Currents (Particle Driven Flows)
Geophysical particle-laden gravity flows are driven by the excess weight of the particles over the surrounding water. Depending on conditions, these... -
Insights from a new method providing single-shot, planar measurement of gas-phase temperature in particle-laden flows under high-flux radiation
Two-colour laser-induced fluorescence (LIF) of toluene has been demonstrated to provide in situ, spatially resolved, planar measurements of the...
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Turbulence Models for Compressible Disperse Multiphase Flows
Multiphase turbulence driven by coupling between the phases can arise in the absence of mean shear. For example, due to gravity (or other body... -
Direct Numerical Simulation of Bi-Disperse Particle-Laden Gravity Currents on Lock-Exchange Configuration with Different Schmidt Number
We performed direct numerical simulations (DNS) of bi-disperse particle-laden gravity currents on a lock-exchange configuration with different values... -
The P-DNS Method for Turbulent Fluid Flows: An Overview
An overview of the Pseudo-Direct Numerical Simulation (P-DNS) method is presented. This is a multi-scale method aiming at numerically solving the...
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Effects of interphase coupling in one-dimensional particle-laden flow
In Euler–Euler particle-laden flow models, the interphase coupling terms might include, in addition to the drag force, the effects of fluid pressure...
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Turbulence in Multiphase Flows
An overview of the fundamental modeling aspects related to disperse multiphase flow is provided. For clarity and accessibility, the discussion is...