{"id":2923,"date":"2020-07-20T10:23:07","date_gmt":"2020-07-20T08:23:07","guid":{"rendered":"https:\/\/c2019.lemma-ing.com\/?page_id=2923"},"modified":"2022-04-27T17:23:04","modified_gmt":"2022-04-27T15:23:04","slug":"niceflow-the-ultimate-strongly-coupled-cfsd-solver","status":"publish","type":"page","link":"https:\/\/www.lemma-ing.com\/?page_id=2923","title":{"rendered":"NICEFLOW\u00ae : The ultimate strongly coupled CFSD solver"},"content":{"rendered":"<p>Please <a href=\"wp-content\/uploads\/Brochure_NICEFLOW.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">click here<\/a> to download the NICEFLOW brochure.<\/p>\n<h2>Features &#8211; Fluid dynamics<\/h2>\n<p>NICEFLOW is a 2D and 3D Mixed-Element-Volume solvers for transient compressible and incompressible Euler and Navier Stokes equations.<\/p>\n<div class=\"su-accordion su-u-trim\">\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Fast and high order numerics<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li>High order discretisation schemes : up to order 6 in space and 3 in time for both compressible and incompressible transient solvers.<\/li>\n<li>Fast and robust linear systems solvers dedicated to powerful and scalable parallel computations (tested on several million nodes).<\/li>\n<\/ul>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Turbulent flow modelization<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li>DNS (Re&lt;10000).<\/li>\n<li>RANS k-eps (including low-Re Goldberg model).<\/li>\n<li>DES.<\/li>\n<li>LES (Large Eddy Simulation) based models.<\/li>\n<li>User defined functions (own inlet velocity profile, turbulent and energy settings).<\/li>\n<\/ul>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Heat transfer<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li>Convection.<\/li>\n<li>Conjugate heat transfer between fluids and structures.<\/li>\n<li>Energy equations solved within user defined RHS.<\/li>\n<li>Temperature dependent rheology parameters.<\/li>\n<li>User defined functions (own temperature or\/and flux settings).<\/li>\n<\/ul>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Free surface flow<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li><a href=\"\/?page_id=2900\" target=\"_blank\" rel=\"noopener noreferrer\">Numerical basin<\/a> (naval and off-shore applications) :\n<ul>\n<li>wave generator (regular\/irregular, linear or non-linear),<\/li>\n<li>floating bodies (6DOF) and mechanical systems with anchors (linear or non linear).<\/li>\n<\/ul>\n<\/li>\n<li>Improved high order and conservative Level-Set method.<\/li>\n<li>Free surface flow under microgravity (space applications).<\/li>\n<li>Surface tension.<\/li>\n<li>User defined functions (multiple level-set settings).<\/li>\n<\/ul>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Multiphase flow<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li>Fast eulerian models to simulate dispersed phases including bubbles, solid particles and droplets (one way, two way coupling).<\/li>\n<li>Phase separation models.<\/li>\n<li>Emulsion : recent multi-scales model derived from kinetic theory.<\/li>\n<li>Mixing of liquids : multi-scales model to estimate the quality of multispecies blend.<\/li>\n<li>Gas mixing (perfect or stiffened gas).<\/li>\n<li>Non newtonian free surface flow (viscoplastic &amp; viscoelastic fluids).<\/li>\n<li>Surface tension.<\/li>\n<li>User defined functions.<\/li>\n<\/ul>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Scalar transport<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li>Concentration transport and diffusion.<\/li>\n<li>Residence time.<\/li>\n<\/ul>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Rheology and complex fluids<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li>Viscoplastic fluids.<\/li>\n<li>Thixotropy (time dependent).<\/li>\n<li>Viscoelastic fluids (within high We number flows).<\/li>\n<li>Sand transport (within high concentration level and four way coupling).<\/li>\n<li>Non newtonian fluids mixing modelization : multi-scales model derived from kinetic theory.<\/li>\n<li>Emulsion : recent multi-scales model derived from kinetic theory, surface tension.<\/li>\n<li>User defined functions (own viscosity model settings, temperature dependencies, inlet velocity profiles&#8230;).<\/li>\n<\/ul>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Multi-domains calculations<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\nIt means that you can use in the same simulation as many solvers (compressible\/incompressible) as needed (1 solver linked to one domain) providing that domains are physically separated.<br \/>\n<\/div><\/div>\n<\/div>\n<h2>Features &#8211; Structural dynamics<\/h2>\n<p>NICEFLOW is a 2D\/3D finite element structural solver, enable to solve linear and highly non linear problems.<\/p>\n<div class=\"su-accordion su-u-trim\">\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Thermo-elasticity<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\nNICEFLOW structure solver is equipped with a temperature solver which computes, inside the structure, the temperature resulting from a given thermal load at its boundaries. This temperature field can be used to introduce material parameters dependence on the temperature. Material thermal dilatation can also be taken into account.<br \/>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>Hyperelasticity<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\nNICEFLOW offers the possibility to perform large displacement and large deformations simulations on elastic structures. Several hyper-elastic potential models are currently available:<\/p>\n<ul>\n<li>a neo-Hookean potential model, the coefficients of which can be either constant or given by an external user function (dependence in time, position and temperature),<\/li>\n<li>a Mooney-Rivilin potential model, the coefficients of which can be either constant or given by an external user function (dependence in time, position and temperature.<\/li>\n<\/ul>\n<p>All these laws are reformulated so as the resulting potential model to be poly-convex and physically well-defined. Geometrical non-linearities are fully taken into account in the variational formulation.<br \/>\n<\/div><\/div>\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>XFEM crack propagation<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\nDedicated solver in fatigue crack propagation field is available. <a href=\"\/?page_id=2896\" target=\"_blank\" rel=\"noopener noreferrer\">See here<\/a> for details.<br \/>\n<\/div><\/div>\n<\/div>\n<h2>Features &#8211; Fluid-Structure Interaction<\/h2>\n<p>NICEFLOW is a 2D\/3D Mixed-Element-Volume solvers, for transient and strongly coupled fluid-structure interaction problems.<\/p>\n<div class=\"su-accordion su-u-trim\">\n<div class=\"su-spoiler su-spoiler-style-fancy su-spoiler-icon-plus su-spoiler-closed\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>FSI<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\n<ul>\n<li>Take both fluid and structural features presented above and launch your simulation using our FSI solver.<\/li>\n<li>NICEFLOW handles elastic or plastic contacts during FSI simulation.<\/li>\n<li>Strong coupling enables you to perform simulations with fluid and material densities ratio closed to one.<\/li>\n<li>Fast and modern fully implicit solver.<\/li>\n<li>See below how NICEFLOW can handle simulation including :\n<ul>\n<li><a title=\"Featured technology: Intelligent mesh\" href=\"\/?page_id=111\">intelligent mesh<\/a> (to follow free surface and moving parts),<\/li>\n<li>free surface flow,<\/li>\n<li>fluid-structure interaction including rigid contact between moving objects.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div class=\"su-row\">\n<div class=\"su-column su-column-size-1-2\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"\/wp-content\/uploads\/NF-sphere-contact.png\" width=\"335\" \/><\/p>\n<p><center><strong>Funny (but touchy!) example of FSI simulation<\/strong><\/center><\/p>\n<\/div><\/div>\n<div class=\"su-column su-column-size-1-2\"><div class=\"su-column-inner su-u-clearfix su-u-trim\">\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/k0vKbYSTgIo\" width=\"550\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><center><strong>Hard spheres in fluid collision.<\/strong><\/center><\/p>\n<\/div><\/div>\n<\/div>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/rqBTOevivuM\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><center><strong>FSI calculation on a rubber flipper<\/strong><\/center><\/p>\n<\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Please click here to download the NICEFLOW brochure. Features &#8211; Fluid dynamics NICEFLOW is a 2D and 3D Mixed-Element-Volume solvers for transient compressible and incompressible Euler and Navier Stokes equations. Features &#8211; Structural dynamics NICEFLOW is a 2D\/3D finite element structural solver, enable to solve linear and highly non linear problems. Features &#8211; Fluid-Structure Interaction&#8230; <\/p>\n","protected":false},"author":229,"featured_media":0,"parent":2893,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"full-width.php","meta":{"footnotes":""},"class_list":["post-2923","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=\/wp\/v2\/pages\/2923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=\/wp\/v2\/users\/229"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2923"}],"version-history":[{"count":14,"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=\/wp\/v2\/pages\/2923\/revisions"}],"predecessor-version":[{"id":3110,"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=\/wp\/v2\/pages\/2923\/revisions\/3110"}],"up":[{"embeddable":true,"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=\/wp\/v2\/pages\/2893"}],"wp:attachment":[{"href":"https:\/\/www.lemma-ing.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}