{"id":110094,"date":"2015-08-04T03:00:00","date_gmt":"2015-08-04T00:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=5dc8b07b5f77747fbf2304e78f8d4bd2"},"modified":"2015-08-04T03:00:00","modified_gmt":"2015-08-04T00:00:00","slug":"on-the-computational-modeling-of-the-viscosity-of-colloidal-dispersions-and-its-relation-with-basicmolecular-interactions","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=110094","title":{"rendered":"On the computational modeling of the viscosity of colloidal dispersions and its relation with basic\r\nmolecular interactions"},"content":{"rendered":"<p>The connection between fundamental interactions acting in molecules in a fluid and macroscopically<br \/>\nmeasured properties, such as the viscosity between colloidal particles coated with polymers, is<br \/>\nstudied here. The role that hydrodynamic and Brownian forces play in colloidal dispersions is also<br \/>\ndiscussed. It is argued that many-body systems in which all these interactions take place can be<br \/>\naccurately solved using computational simulation tools. One of those modern tools is the technique<br \/>\nknown as dissipative particle dynamics, which incorporates Brownian and hydrodynamic forces, as well<br \/>\nas basic conservative interactions. A case study is reported, as an example of the applications of<br \/>\nthis technique, which consists of the prediction of the viscosity and friction between two opposing<br \/>\nparallel surfaces covered with polymer chains, under the influence of a steady flow. This work is<br \/>\nintended to serve as an introduction to the subject of colloidal dispersions and computer<br \/>\nsimulations, for&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The connection between fundamental interactions acting in molecules in a fluid and macroscopically<br \/>\nmeasured properties, such as the viscosity between colloidal particles coated with polymers, is<br \/>\nstudied here. The role that hydrodynamic and Brownian f&#8230;<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-110094","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/110094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=110094"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/110094\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=110094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=110094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=110094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}