{"id":262,"date":"2013-06-06T05:53:54","date_gmt":"2013-06-06T05:53:54","guid":{"rendered":"http:\/\/toschi.phys.tue.nl\/wordpress\/?p=262"},"modified":"2017-08-16T22:20:09","modified_gmt":"2017-08-16T20:20:09","slug":"convection-in-multiphase-fluid-flows-using-lattice-boltzmann-methods","status":"publish","type":"post","link":"https:\/\/toschi.phys.tue.nl\/wordpress\/convection-in-multiphase-fluid-flows-using-lattice-boltzmann-methods\/","title":{"rendered":"Convection in multiphase fluid flows using lattice Boltzmann methods"},"content":{"rendered":"<div class=\"kcite-section\" kcite-section-id=\"262\">\n<div class='content-wrap'><p>Biferale, L., Perlekar, P., Sbragaglia, M. &amp; Toschi, F. (2012). Convection in multiphase fluid flows using lattice Boltzmann methods. Physical Review Letters, 108(10):104502<\/p>\n<p><a href=\"http:\/\/dx.doi.org\/10.1103\/PhysRevLett.108.104502\">DOI<\/a><\/p>\n<p>We present high-resolution numerical simulations of convection in multiphase flows (boiling) using a novel algorithm based on a lattice Boltzmann method. We first study the thermodynamical and kinematic properties of the algorithm. Then, we perform a series of 3D numerical simulations changing the mean properties in the phase diagram and compare convection with and without phase coexistence at Rayleigh number <span class='MathJax_Preview'><img data-recalc-dims=\"1\" src=\"https:\/\/i0.wp.com\/toschi.phys.tue.nl\/wordpress\/wp-content\/plugins\/latex\/cache\/tex_abce778e03babc858b8aa6990d419a53.gif?w=697&#038;ssl=1\" style='vertical-align: middle; border: none; ' class='tex' alt=\"\" \/><\/span><script type='math\/tex'><\/script>. We show that in the presence of nucleating bubbles non-Oberbeck-Boussinesq effects develop, the mean temperature profile becomes asymmetric, and heat-transfer and heat-transfer fluctuations are enhanced, at all Ra studied. We also show that small-scale properties of velocity and temperature fields are strongly affected by the presence of the buoyant bubble leading to high non-Gaussian profiles in the bulk.<\/p>\n<\/div><!-- kcite active, but no citations found -->\n<\/div> <!-- kcite-section 262 -->","protected":false},"excerpt":{"rendered":"<p>Biferale, L., Perlekar, P., Sbragaglia, M. &amp; Toschi, F. (2012). Convection in multiphase fluid flows using lattice Boltzmann methods. Physical Review Letters, 108(10):104502 DOI We present high-resolution numerical simulations of convection in multiphase flows (boiling) using a novel algorithm based on a lattice Boltzmann method. We first study the thermodynamical and kinematic properties of the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":268,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[17,18,51],"class_list":["post-262","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-heat-transfer","tag-multi-phase","tag-turbulence"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/toschi.phys.tue.nl\/wordpress\/wp-content\/uploads\/2013\/06\/screen.png?fit=953%2C939&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6tiMI-4e","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":495,"url":"https:\/\/toschi.phys.tue.nl\/wordpress\/sten-rijers\/","url_meta":{"origin":262,"position":0},"title":"Sten Reijers","author":"toschi","date":"February 4, 2014","format":false,"excerpt":"Compressible effects in drops impacted by a laser pulse The impact of a laser pulse onto a liquid droplet induces strong deformation and propulsion of the droplet. Here, we aim to understand the droplet dynamics by performing lattice-Boltzmann simulations and doing a theoretical analysis. 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