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content/job_offers/job_db200a1bd7ec487be4e02545328e9a27.md

+Title: Quantum Turbulence : Three-Fluid Modeling - Phenomenology and Numerical Simulations
+Date: 2021-07-18 22:19
+Slug: job_db200a1bd7ec487be4e02545328e9a27
+Category: job
+Authors: Emmanuel Lévêque
+Email: emmanuel.leveque@ec-lyon.fr
+Job_Type: Post-doctorat
+Tags: postdoc
+Template: job_offer
+Job_Location: Ecole Centrale de Lyon, Ecully (France)
+Job_Duration: 1 year
+Job_Website: 
+Job_Employer: Ecole Centrale de Lyon
+Expiration_Date: 2021-10-10
+Attachment: job_db200a1bd7ec487be4e02545328e9a27_attachment.pdf
+
+Quantum turbulence can be treated at a coarse-grained level as a problem of classical fluid
+dynamics by considering a mixture of two interacting fluids: a normal fluid with a non-zero
+viscosity and an inviscid superfluid. The dynamics then obeys a system of Navier-Stokes
+and Euler equations coupled by a mutual friction force modelling the interactions between
+the elementary vortices of the superfluid component and the normal fluid. This is the
+framework of the so-called two-fluid model initiated by Landau and Tisza in 1941. The
+present program aims at extending this framework by accounting explicitly for the coarse-grained dynamics of the superfluid elementary vortices, viewed as a third-fluid component.
+
+The successful candidate will perform pseudo-spectral simulations of quantum turbulence
+encompassing three-fluid modelling by using an operational internal code (in Fortran). The
+results will be compared with recent experimental data and previous numerical results
+obtained with the two-fluid model. This study will contribute to improve our understanding
+of multiscale properties of quantum turbulence.
+
+This program is part of a major project called Quantum Turbulence Exploration by HighPerformance Computing (QuteHPC) funded by the French National Research Agency (ANR): <http://qute-hpc.math.cnrs.fr/>