{"id":46367,"date":"2020-07-21T10:19:55","date_gmt":"2020-07-21T10:19:55","guid":{"rendered":"\/forum\/forums\/topic\/ansys-fluent-unit-scales-and-result-plots\/"},"modified":"2020-07-21T10:19:55","modified_gmt":"2020-07-21T10:19:55","slug":"ansys-fluent-unit-scales-and-result-plots","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-fluent-unit-scales-and-result-plots\/","title":{"rendered":"Ansys fluent unit scales and result plots"},"content":{"rendered":"

Hello,<\/p>\n

<\/p>\n

I am using Ansys 2019R1 w\/ academic license. I am new to Fluent.I have the following simple experiment model and queries:<\/p>\n

<\/p>\n

Experiment model:<\/strong><\/p>\n

<\/p>\n

A cylindrical enclosure of incompressible carbon monoxide w\/ a heater placed in between. The bottom and top face are the pressure inlet (10mPa) and outlet (0mPa) as shown in the figure of the contour plots below. I run a simple transient simulation with 10 iterations.<\/p>\n

<\/p>\n

Queries:<\/strong><\/p>\n

<\/p>\n

I have following queries with the units and result graphs.<\/p>\n

<\/p>\n

1.<\/strong> I create a new unit i.e. mPa and use 10mPa pressure as the input as show below:<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

However when I see the contour plot of the total pressure, the value of pressure are extremely high and doesn’t make any sense.<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

also, input and output pressure seems to be equal. How is it so?<\/p>\n

<\/p>\n

2.<\/strong> I tried giving a sinusoidal pressure pulse as the input using the following UDF<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

However, when I see the vector plot of the pressure, the pressure seems to be constant rather than sinusoidal in nature w\/ extremely high values. How is it so?<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

Also, following is the pressure plot w.r.t. time, which doesn’t make any sense either<\/p>\n

<\/p>\n

\"\"<\/p>\n

<\/p>\n

 <\/p>\n

<\/p>\n

Kindly help with the above two queries.<\/p>\n

<\/p>\n

Best,<\/p>\n

<\/p>\n

Ananya<\/p>\n

<\/p>\n

 <\/p>\n

<\/p>\n

 <\/p>\n","protected":false},"template":"","class_list":["post-46367","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["18550"],"_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"],"_btv_view_count":["1554"],"_bbp_subscription":["253895"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["46367"],"_bbp_forum_id":["27792"],"_bbp_engagement":["22555","179779"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["121997"],"_bbp_last_active_id":["121997"],"_bbp_last_active_time":["2020-07-21 11:25:41"]},"test":"ananyas"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/46367","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\/46367\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=46367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}