Browsing by Author "Boyer, Denis"
Now showing items 1-4 of 4
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Elicer Cortés, Juan; Navia, A.; Boyer, Denis; Pavageau, Michel; Hernández, R. H. (ELSEVIER, 2006-03)Ultrasound scattering is used to characterize instability modes in a laminar axisymmetric thermal plume subjected to controlled axisymmetric ("varicose") disturbances. A scattered signal is detected as soon as vortical ...
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Elicer Cortés, Juan; Ruz, C.; Hernández, R. H.; Pavageau, Michel; Boyer, Denis (PERGAMON-ELSEVIER SCIENCE LTD, 2005-02)An experimental study of the instability modes of a laminar axisymmetric thermal plume under symmetrical controlled disturbances of varicose type was carried out. The Schlieren technique was used to investigate the considered ...
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Propagation of elastic waves through polycrystals: the effects of scattering from dislocation arrays Maurel, Agnès; Pagneux, Vincent; Boyer, Denis; Lund Plantat, Fernando (ROYAL SOCIETY, 2006-09-08)We address the problem of an elastic wave coherently propagating through a two-dimensional polycrystal. The main source of scattering is taken to be the interaction with grain boundaries that are in turn modelled as line ...
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Elicer Cortés, Juan; Contreras Ramos, Renato; Boyer, Denis; Pavageau, Michel; Hernández, R. H. (ELSEVIER, 2004-10)This paper reports the results of a study on temperature inhomogeneities conducted on a thermal plume by using ultrasound scattering as a non-intrusive measurement technique. The plume rises from a metallic disk which can ...