Search Results - "Coelho, P.J."

Numerical simulation of the interaction between turbulence and radiation in reactive flows by Coelho, P.J.

“…The interaction between turbulence and radiation (TRI) in reactive flows has been demonstrated experimentally, theoretically and numerically, and results from…”
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Parametric study of a thermoelectric generator system for exhaust gas energy recovery in diesel road freight transportation by Vale, S., Heber, L., Coelho, P.J., Silva, C.M.

“…•1-D numerical TEG model in diesel freight vehicles exhaust pipe.•Over 800W of electrical power for the heavy-duty vehicle.•Plain fins provide better…”
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On the individual importance of temperature and concentration fluctuations in the turbulence-radiation interaction in pool fires by Fraga, G.C., Centeno, F.R., Petry, A.P., Coelho, P.J., França, F.H.R.

“…•Turbulence-radiation interaction is studied for ethanol and methanol pool fires.•Large-eddy simulation is used to obtain detailed transient fields.•Individual…”
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Numerical simulation of a reversed flow small-scale combustor by Graça, M., Duarte, A., Coelho, P.J., Costa, M.

“…A numerical study of a reversed flow small-scale combustor is reported. The combustion chamber is a closed end cylinder with the burner and the exhaust port…”
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Approximate solutions of the filtered radiative transfer equation in large eddy simulations of turbulent reactive flows by Coelho, P.J.

“…An analysis of the relevance of turbulence–radiation interaction in the numerical simulation of turbulent reactive flows is presented. A semi-causal stochastic…”
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Numerical simulation of a mild combustion burner by Coelho, P.J., Peters, N.

“…A combustor with high air preheating and strong internal exhaust gas recirculation is numerically simulated. The combustor operates in the mild combustion…”
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A comparison of spatial discretization schemes for differential solution methods of the radiative transfer equation by Coelho, P.J.

“…A comparison of discretization schemes required to evaluate the radiation intensity at the cell faces of a control volume in differential solution methods of…”
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Spectral radiative effects and turbulence/radiation interaction in a non-luminous turbulent jet diffusion flame by Coelho, P.J., Teerling, O.J., Roekaerts, D.

“…A non-luminous turbulent jet diffusion flame is numerically simulated using a Reynolds stress second-order closure, the steady laminar flamelet model, and…”
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Flamelet mathematical models for non-premixed laminar combustion by Carbonell, D., Perez-Segarra, C.D., Coelho, P.J., Oliva, A.

“…Detailed numerical calculations based on the solution of the full transport equations have been compared with flamelet calculations in order to analyse the…”
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Relevance of the subgrid-scales for large eddy simulations of turbulence–radiation interactions in a turbulent plane jet by Roger, M., Coelho, P.J., da Silva, C.B.

“…An a priori study based on direct numerical simulation (DNS) of a non-isothermal turbulent plane jet has been carried out in order to analyse the role of the…”
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Application of modified discrete ordinates method to combined conduction-radiation heat transfer problems in irregular geometries by Amiri, H, Mansouri, S.H, Coelho, P.J

“…Purpose - The solution of radiative heat transfer problems in participating media is often obtained using the standard discrete ordinates method (SDOM). This…”
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Unsteady modelling of a piloted methane/air jet flame based on the Eulerian particle flamelet model by Coelho, P.J., Peters, N.

“…A piloted methane/air jet flame is numerically simulated by using both steady and unsteady flamelets. Unsteady calculations are performed in a postprocessing…”
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Application of high-order spatial resolution schemes to the hybrid finite volume finite element method for radiative transfer in participating media by Coelho, P.J, Aelenei, D

“…Purpose - This paper sets out to implement bounded high-order (HO) resolution schemes in a hybrid finite volume finite element method for the solution of the…”
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Experimental and numerical investigation of turbulent diffusion flames in a laboratory combustor with a slot burner by Branco, J., Coelho, P.J., Costa, M.

“…•Investigation of turbulent diffusion flames in a combustor with a slot burner.•OH∗ imaging and temperature and gas species concentrations are…”
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Development and testing of a model for turbulence-radiation interaction effects on the radiative emission by Fraga, G.C., Coelho, P.J., Petry, A.P., França, F.H.R.

“…•A new model for turbulence-radiation interaction (TRI) is developed.•The development is based on transient data numerically generated for pool fires.•The…”
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Assessing individual time-averaged emission and absorption correlations for large-scale turbulent pool fires by Fraga, G.C., Coelho, P.J., França, F.H.R.

“…•Correlations related to the turbulence-radiation interaction phenomenon are studied.•The configurations under study are four turbulent pool fires.•The OTFA is…”
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Experimental study of drying of agricultural solid biomass residues using hot combustion gases of a pellet stove by Al-kassir, Awf, Lopez Rodríguez, F., Marcos, A.C., Coelho, P.J.

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Assessment of a model for emission subgrid-scale turbulence-radiation interaction applied to a scaled Sandia flame DD by Fraga, G.C., Miranda, F.C., França, F.H.R., Janicka, J., Coelho, P.J.

“…•A subgrid-scale (SGS) turbulence-radiation interaction model’s accuracy is assessed.•The configuration under study is a scaled version of the Sandia flame…”
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Ad hoc angular discretization of the radiative transfer equation by Favennec, Y., Mathew, T., Badri, M.A., Jolivet, P., Rousseau, B., Lemonnier, D., Coelho, P.J.

“…•For efficiently solving the radiative transfer equation with finite element methods, we develop a novel algorithm of angular mesh adaptation based on a…”
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A closer look at the photochromism of vinylidene-naphthofurans by Sousa, Céu M., Berthet, Jerome, Delbaere, Stephanie, Coelho, Paulo J.

“…Vinylidene-naphthofurans are a new class of photochromic molecules, easily synthetized, with a unique structure combining an allene group linked to a…”
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