Hello Everyone, <\/p>\n
A laminar steady-state 3-D rectangular pipe flow has been simulated with a velocity inlet and a pressure outlet, with some known fluid properties. The flow results are found to be agreeing with the typical flow behavior (velocity and pressure values agree with theoretical results). We are using Ansys 18.1 academic version.<\/p>\n
We need to generate streamlines, starting at center of each element on the inlet (this part is easy) and export the data out. Therefore, if we have n elements (cells) on the inlet, n number of streamlines need to be generated. Then, we need to trace each streamline separately and export the relevant information (i.e. velocity magnitude, pressure, or any other user defined variable) out for further analysis in MATLAB\/EXCEL. <\/p>\n
We already created the streamlines at the center of each cell on the inlet in CFD-Post. Then, we exported the streamlines information out as csv file. However, when we open the file in excel, it is almost impossible for us to see which points (nodes) are related to which streamline. We need to be able to distinguish the streamlines from each other. Note that in our case (steady state), streamlines are the same as pathlines.<\/p>\n
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In another word, we need an excel file, which has a format similar to the following:<\/p>\n
<\/p>\n
Streamline 1<\/p>\n
<\/p>\n
x y z variable1 variable 2 …… variable m<\/p>\n
<\/p>\n
(number of rows here depends on the number of nodes forming this particular streamline)<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
Streamline 2<\/p>\n
<\/p>\n
x y z variable1 variable 2 …… variable m<\/p>\n
<\/p>\n
(number of rows here depends on the number of nodes forming this particular streamline)<\/p>\n
<\/p>\n
.<\/p>\n
<\/p>\n
.<\/p>\n
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.<\/p>\n
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.<\/p>\n
<\/p>\n
up to the n-th streamline.<\/p>\n
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Any help is appreciated.<\/p>\n","protected":false},"template":"","class_list":["post-28922","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