http://www.webreview.dz/ Webreview est un site fédérateur des revues scientifiques. Il met à la disposition des utilisateurs un ensemble de revues scientifiques algériennes couvrant tous les domaines. Webreview est ouvert à toute revue désireuse de publier son contenu en ligne soit en mode d'accès complet ou restreint permettant ainsi la valorisation de la recherche scientifique en Algérie. Webreview et un projet développé par le CERIST au sein de la Division Recherche et Développement en Sciences de l'Information. Pour contacter Webreview par émail : webreview@mail.cerist.dz Pour contacter Webreview par courrier, fax ou téléphone : Centre de Recherche sur l'Information Scientifique et Technique (CERIST) Rue des 03 frères AISSOU, Ben-Aknoun, Alger, Algérie Tél/Fax : +(213)(0) 21.91.21.98 fr SPIP - www.spip.net http://www.webreview.dz/spip.php?article307 http://www.webreview.dz/spip.php?article307 2005-07-19T14:32:53Z text/html fr Hadef R., Serby G. Laser doppler velocimetry Laser tomography Premixed wrinkled flame Markstein number <p>This paper deals with the application of laser Doppler velocimetry when associated with laser tomography to weakly stretched propagating downwards flames. Its main objective is the determination of the Markstein number representing sensitivity to strain and curvature of the premixed wrinkled flames.The measured quantities are the flow field velocity of the unburned gas, the normal flame velocity and the amplitude of the flame front.The experimental data are obtained for methane and propane (...)</p> - <a href="http://www.webreview.dz/spip.php?rubrique97" rel="directory">Numéro 14</a> / <a href="http://www.webreview.dz/spip.php?mot1401" rel="tag">Laser doppler velocimetry </a>, <a href="http://www.webreview.dz/spip.php?mot1402" rel="tag">Laser tomography </a>, <a href="http://www.webreview.dz/spip.php?mot1403" rel="tag">Premixed wrinkled flame </a>, <a href="http://www.webreview.dz/spip.php?mot1404" rel="tag">Markstein number</a> <div class='rss_chapo'><p>This paper deals with the application of laser Doppler velocimetry when associated with laser tomography to weakly stretched propagating downwards flames. Its main objective is the determination of the Markstein number representing sensitivity to strain and curvature of the premixed wrinkled flames.The measured quantities are the flow field velocity of the unburned gas, the normal flame velocity and the amplitude of the flame front.The experimental data are obtained for methane and propane laminar flames stabilized in a sinusoidally (spatially) modulated steady flow. An original method, using the tomography laser technique is developed to stabilize intrinsically the flame. The results obtained are in good agreements with those found in the literature, confirming the dependence of Markstein number values on value of Lewis number.</p></div>