{"id":167698,"date":"2022-03-24T13:54:21","date_gmt":"2022-03-24T13:54:21","guid":{"rendered":"\/forum\/forums\/topic\/difference-between-pabs_total-calculated-by-analysis-group\/"},"modified":"2022-03-24T22:31:12","modified_gmt":"2022-03-24T22:31:12","slug":"difference-between-pabs_total-calculated-by-analysis-group","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/difference-between-pabs_total-calculated-by-analysis-group\/","title":{"rendered":"difference between Pabs_total calculated by analysis group"},"content":{"rendered":"
\n
\n

Hi,<\/p>\n

I have confusion related to total absorbed power calculated by two different analysis groups.<\/p>\n

I used analysis group "cross-section" to calculate Pabs_total as done in the Mie scattering example. This analysis group calculates power flow in\/out of a box.<\/p>\n

Also, I used the analysis group "Power absorbed (advanced)" to calculate Pabs_total as done in the Photothermal heating example. This analysis group uses the Joule heating formula. <\/p>\n

My question\/confusion is, are they both not supposed to give the same Pabs_total? However, I am getting different values of Pasb_total. Both analysis groups have the same dimensions in my simple problem. <\/p>\n

for example for a 20nm dia gold sphere in water at 1mW\/um2 power intensity at 530 nm, <\/p>\n

the total absorbed power (pabs_total) is:<\/p>\n

8e-11 W with the analysis group "Power absorbed (advanced)"<\/p>\n

2.5e-7 W with the analysis group "cross-section"<\/p>\n

as per literature, the value calculated by the analysis group "cross-section" is more reliable.<\/p>\n

Can anyone please comment on this?<\/p>\n","protected":false},"template":"","class_list":["post-167698","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t