{"id":453942,"date":"2026-03-08T03:18:24","date_gmt":"2026-03-08T03:18:24","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulating-backfill-in-a-cut-and-fill-underground-mine-operation\/"},"modified":"2026-03-08T03:18:24","modified_gmt":"2026-03-08T03:18:24","slug":"simulating-backfill-in-a-cut-and-fill-underground-mine-operation","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/simulating-backfill-in-a-cut-and-fill-underground-mine-operation\/","title":{"rendered":"Simulating backfill in a cut-and-fill underground mine operation"},"content":{"rendered":"<p>&lt;p&gt;Hello.I am simulating backfilling operation where my main material is cemented paste and air(paste+air).It is basically multiphase VOF.To assign the non-Newtonian properties, I use Non-Newtonian power law with density of 1900kg\/m3,consistency K=8Pa.sn,flow index,n=0.5,minimum viscosity=0.001 and max viscosity=10000.My ultimate goal is to get a smooth flow fill covering the surface as it builds up,and be able to see formation of bubbles.What have had so far when I run my animation does not show me this as seen from the attached photo.Please help<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/03\/08-03-2026-1772939848-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-453942","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27792"],"_bbp_topic_id":["453942"],"_bbp_subscription":["631547","199"],"_bbp_author_ip":["129.138.168.37"],"_bbp_last_reply_id":["453978"],"_bbp_last_active_id":["453978"],"_bbp_last_active_time":["2026-03-09 10:29:28"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["631547","199"],"_btv_view_count":["46"],"_bbp_topic_status":["unanswered"]},"test":"kevinsang94gmail-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/453942","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\/453942\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=453942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}