{"id":133136,"date":"2020-11-15T04:36:14","date_gmt":"2020-11-15T04:36:14","guid":{"rendered":"\/forum\/forums\/reply\/133136\/"},"modified":"2020-11-15T04:36:14","modified_gmt":"2020-11-15T04:36:14","slug":"133136","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/133136\/","title":{"rendered":"Reply To: Why build the SPH layer at the bottom?"},"content":{"rendered":"<p><i>Hi all, I have a new issue in this simulation. After the water droped down, there are some particles move upwards along the left rigidwall. It is like those particles adhere to the wall. I have tried to reduce the gap between wall and water, but doesn&#039;t work. Could you help me to resolve this?https:\/\/us.v-cdn.net\/6032193\/uploads\/AQFXOQNSY04K\/image.png<\/i><a href=\"\/forum\/discussion\/comment\/96759#Comment_96759\">\/forum\/discussion\/comment\/96759#Comment_96759<\/a><\/p>\n<p>The rigidwall must align  the part surface. When change the particle spacing, small gap may generated between the rigidwall and part surface, thus the contact between rigidwall and part produced weird results. If particle spacing is changed, the rigidwall must be updated.n<\/p>\n","protected":false},"template":"","class_list":["post-133136","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi all, I have a new issue in this simulation. After the water droped down, there are some particles move upwards along the left rigidwall. It is like those particles adhere to the wall. I have tried to reduce the gap between wall and water, but doesn&#039;t work. 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