Emilie Sauret

Publications : 53
Aldex : 20
H-index : 15
Citations : 713

Conserving elastic turbulence numerically using artificial diffusivity

Vedad Dzanic, Emilie Sauret et 2 al.

Mar 24, 2022 in Arxiv
To simulate elastic turbulence, where viscoelasticity dominates, numerical solvers introduce an artificial stress diffusivity term to handle the steep polymer stress gradients that ensue. This has recently been shown [Gupta & Vincenzi, J. Fluid Mech. 870, 405-418 (2019); Dzanic, From & Sauret, J. Fluid Mech. 937, A31 (2022)] to introduce unphysical artifacts with a detrimental impact on simulation...

Conserving elastic turbulence numerically using artificial diffusivity

Vedad Dzanic, Emilie Sauret et 2 al.

Mar 24, 2022 in Arxiv
To simulate elastic turbulence, where viscoelasticity dominates, numerical solvers introduce an artificial stress diffusivity term to handle the steep polymer stress gradients that ensue. This has recently been shown [Gupta & Vincenzi, J. Fluid Mech. 870, 405-418 (2019); Dzanic, From & Sauret, J. Fluid Mech. 937, A31 (2022)] to introduce unphysical artifacts with a detrimental impact on simulation...

physics

Influence of multiscale surface roughness on permeability in fractures

Zhongzheng Wang et 5 al.

Feb 3, 2022 in Physical Review Fluids
Author(s): Zhongzheng Wang, Yanyao Bao, Jean Michel Pereira, Emilie Sauret, and Yixiang GanFractures typically contain multiscale surface features and can impact the fluid flow within. Direct numerical simulations across a wide range of Reynolds number have been carried out on surfaces with roughness details of different length scales. The overestimation in permeability due to surface approximatio...

CFD simulations of flow and heat transfer through the porous interface of a metal foam heat exchanger

Emilie Sauret et 3 al.

Jan 1, 2014 in Science & Engineering Faculty
This paper offers numerical modelling of a waste heat recovery system. A thin layer of metal foam is attached to a cold plate to absorb heat from hot gases leaving the system. The heat transferred from the exhaust gas is then transferred to a cold liquid flowing in a secondary loop. Two different foam PPI (Pores Per Inch) values are examined over a range of fluid velocities. Numerical results are ...

engineering

3D CFD simulations of a candidate R143a radial-inflow turbine for geothermal power applications

Emilie Sauret, YuanTong Gu

Jan 1, 2014 in Science & Engineering Faculty
Optimisation of Organic Rankine Cycles (ORCs) for binary cycle applications could play a major role in determining the competitiveness of low to moderate renewable sources. An important aspect of the optimisation is to maximise the turbine output power for a given resource. This requires careful attention to the turbine design notably through numerical simulations. Challenges in the numerical mode...

chemistry

Modelling of red blood cell morphological and deformability changes during in-vitro storage

Nadeeshani Maheshika...

Jan 1, 2020 in Applied Sciences
Storage lesion is a critical issue facing transfusion treatments, and it adversely affects the quality and viability of stored red blood cells (RBCs). RBC deformability is a key indicator of cell health. Deformability measurements of each RBC unit are a key challenge in transfusion medicine research and clinical haematology. In this paper, a numerical study, inspired from the previous research for...

Application of porous metal foam heat exchangers and the implications of particulate fouling for energy-intensive industries

Sahan Kuruneru, YuanTong Gu et 3 al.

Jan 1, 2020 in Chemical Engineering Science
Curtailing the ever-increasing global energy demand remains an arduous challenge. The United States Energy Information Administration emphasized that the deployment of new heat exchanger technologies could revolutionize how industry uses energy. In this review, we highlight the significance of metal foam heat exchangers as an attractive alternative to traditional heat exchanger technologies. Rese...

engineering

Evaluation of power block arrangements for 100MW scale concentrated solar thermal power generation using top-down design

Alexander Post, Rodney Persky et 3 al.

Jan 1, 2017
Concentrated solar thermal power generation poses a unique situation for power block selection, in which a capital intensive heat source is subject to daily and seasonal fluctuations in intensity. In this study, a method is developed to easily evaluate the favourability of different power blocks for converting the heat supplied by a concentrated solar thermal plant into power at the 100MWe scale b...

physics

Effect of Boundary-Conditions in Shock-Wave/Turbulent-Boundary-Layer Interaction Computations

G. A. Gerolymos, I. Vallet et 2 al.

Jan 1, 2003
The influence of inflowand boundary-conditions on the results of Favre-Reynolds-averaged Navier-Stokes computations of supersonic oblique-shock-wave/turbulent-boundary-layer interactions (Mach-number SW 2 9), using 7-equation Reynolds-stress model turbulence closures, is studied, and compared with available measurements. The generation of inflow-conditions (and the initialization of the flowfield)...

engineering

Preliminary and robust design analysis of a solar thermal power block

Rodney Persky, Emilie Sauret

Jan 1, 2016 in Science & Engineering Faculty
Australia is endeavouring to expand the mix of power resources, and is investing heavily in the development of renewable generation methods such as concentrated solar thermal power. In these systems, the power block and turbine need to maintain high efficiency under non-ideal conditions away from the design point. Literature shows that there is a clear relationship between the selection of fluids,...

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