Search Results - "Mompean, G."

Elastic turbulence in two-dimensional cross-slot viscoelastic flows by Canossi, D. O., Mompean, G., Berti, S.

“…We report evidence of irregular unsteady flow of two-dimensional polymer solutions in the absence of inertia in cross-slot geometry using numerical simulations…”
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Experimental and numerical investigation of the dynamic behaviour of a ballistic plastilina using an adapted Taylor impact test by Gilson, L., Rabet, L., Imad, A., Coghe, F., Mompean, G.

“…An adapted version of the Taylor impact test was developed to study the dynamic behaviour of a specific red Weible® plastilina. Instead of accelerating Taylor…”
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Analysis of polymer drag reduction mechanisms from energy budgets by Thais, L., Gatski, T.B., Mompean, G.

“…•Direct numerical simulation data of turbulent Newtonian and viscoelastic channel flows at high Reynolds number are produced.•A complete picture of the energy…”
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Spectral analysis of turbulent viscoelastic and Newtonian channel flows by Thais, L., Mompean, G., Gatski, T.B.

“…•Direct numerical simulation data of turbulent viscoelastic channel flows are produced.•The power spectra of velocity and vorticity fields are…”
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Temporal large-eddy simulations of the lid-driven cavity by finite volume method by Corrêa, L., Mompean, G., Kurokawa, F. A., Sousa, F. S.

“…This paper describes in detail a numerical scheme to predict complex turbulent flows using a recent model based on temporal large-eddy simulations (TLES). To…”
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Prediction of a high swirled natural gas diffusion flame using a PDF model by Khelil, A., Naji, H., Loukarfi, L., Mompean, G.

“…The paper deals with the numerical prediction of a high swirling non-premixed confined natural gas diffusion flame in order to predict the pollutant emissions…”
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Anisotropic Reynolds stress tensor representation in shear flows using DNS and experimental data by Nieckele, A. O., Thompson, R. L., Mompean, G.

“…Tensorial decompositions and projections are used to study the performance of algebraic non-linear models and predict the anisotropy of the Reynolds stresses…”
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Numerical simulation of viscoelastic Dean vortices in a curved duct by Helin, L., Thais, L., Mompean, G.

“…The purpose of the present study is to proceed to three-dimensional numerical simulations of viscoelastic Dean flows of a modified Phan-Thien–Tanner fluid…”
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Numerical prediction of three-dimensional time-dependent viscoelastic extrudate swell using differential and algebraic models by Mompean, G., Thais, L., Tomé, M.F., Castelo, A.

“…This study investigates the numerical simulation of three-dimensional time-dependent viscoelastic free surface flows using the Upper-Convected Maxwell (UCM)…”
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Numerical simulation of a turbulent flow near a right-angled corner using the Speziale non-linear model with RNG K– ε equations by Mompean, G.

“…A numerical simulation has been performed with the non-linear turbulence model proposed by Speziale (1987)On non-linear k–l and k– ε models of turbulence,…”
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An alternative assessment of weak-equilibrium conditions in turbulent closure modeling by Thompson, R.L., Mompean, G.

“…In formulating polynomial representations of turbulent stress anisotropy tensors, it is necessary to impose equilibrium conditions on the turbulent field in…”
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Assessment of a general equilibrium assumption for development of algebraic viscoelastic models by Mompean, G., Thais, L.

“…The recent development of algebraic explicit stress models (AESM) for viscoelastic fluids rests upon a general equilibrium assumption, by invoking a slow…”
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Numerical simulation of viscoelastic flows with Oldroyd-B constitutive equations and novel algebraic stress models by Thais, L., Helin, L., Mompean, G.

“…The purpose of the present study is to compare numerical simulations of viscoelastic flows using the differential Oldroyd-B constitutive equations and two…”
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On the consequences of material frame-indifference in algebraic stress models by Thais, L, Mompean, G, Helin, L

“…The principle of material frame-indifference (MFI) is a fundamental and controversial principle of continuum mechanics that has been invoked recently to derive…”
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A general transformation procedure for differential viscoelastic models by Mompean, G., Thompson, R.L., Souza Mendes, P.R.

“…A general transformation procedure (GTP) for viscoelastic differential constitutive equations is proposed. This procedure is devised to transform a…”
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On algebraic extra-stress models for the simulation of viscoelastic flows by Mompean, G., Jongen, T., Deville, M.O., Gatski, T.B.

“…A methodology is presented for the formulation of an algebraic extra-stress model derivable from the Oldroyd-B constitutive equation for a viscoelastic fluid…”
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On predicting abrupt contraction flows with differential and algebraic viscoelastic models by Mompean, Gilmar

“…The numerical simulation of flows through a planar contraction at low Reynolds number is considered for Newtonian and for viscoelastic fluids. The recently…”
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Prediction of a high swirled natural gas diffusion flame using a PDF model by Naji, H., Khelil, A., Loukarfi, L., Mompean, G.

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Finite volume numerical simulation of viscoelastic flows in general orthogonal coordinates by Mompean, G., Thais, L.

“…This work reports on numerical simulations of unsteady two- and three-dimensional viscoelastic flows in complex geometries. The Navier–Stokes solver is…”
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A methodology to quantify the nonlinearity of the Reynolds stress tensor by Thompson, Roney L., Mompean, Gilmar, Thais, Laurent

“…Turbulent models provide closure equations that relate the Reynolds stress with kinematic tensors. In this study, we present a methodology to quantify the…”
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