


{"id":34894,"date":"2019-04-23T14:30:09","date_gmt":"2019-04-23T14:30:09","guid":{"rendered":"\/forum\/forums\/topic\/vof-to-dpm-solver-questions\/"},"modified":"2019-04-23T14:30:09","modified_gmt":"2019-04-23T14:30:09","slug":"vof-to-dpm-solver-questions","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/vof-to-dpm-solver-questions\/","title":{"rendered":"VOF-to-DPM solver questions"},"content":{"rendered":"<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">To whom it may concern,<\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">I&#8217;ve got some questions on the VOF-to-DPM solver transition.&nbsp;<\/span><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">The 19.2 theory guide states the following:<\/span><\/p>\n<p><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">&#8220;In order to avoid spurious momentum sources, a volume of gas with the same volume as the liquid lump is created in the VOF simulation to maintain the volume conservation.&nbsp;<\/span><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">The mass source that is equivalent to the mass of the gas volume will affect the overall mass balance.&#8221;<\/span><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">1 &#8211; Is there a reason that&nbsp;the paragraph discusses volume conservation instead of mass conservation?<\/span><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">2 &#8211; Does the last statement mean that mass conservation is not enforced at the time of the transition?&nbsp;<\/span><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">3 &#8211; How is the number of particles per parcel calculated?&nbsp;<\/span><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\"><br \/><\/span><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">Thanks for your time.<\/span><\/p>\n<p><\/p>\n<p><span style=\"color: #222222; font-family: 'Myriad Pro', Helvetica, Arial, sans-serif; font-size: 16px;\">&nbsp;<\/span><\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n<p><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-34894","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["7066"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0","0"],"_btv_view_count":["1511"],"_bbp_subscription":["238130"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["34894"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","22555","161075"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["84058"],"_bbp_last_active_id":["84058"],"_bbp_last_active_time":["2019-04-29 11:40:25"]},"test":"bpal"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/34894","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/34894\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=34894"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}