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how to set the "beam width" and "beam direction" in the DO radiation model

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Old   July 14, 2012, 23:30
Default how to set the "beam width" and "beam direction" in the DO radiation model
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wehn the "semi-transparent" is selected in the BC type under the radiation tab of the wall, you need to set "beam width" and "beam direction". i have seen the relevent information in the HELP document, but i still do not understand their meanings and do not know how to set them. is there anyone who can explain their meanings and help me? the attachment is a case that i need to set in this problem. please help me how to set these parameters. thank you!
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Old   March 6, 2017, 03:04
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the beam width is the solid angle, through which the irradiance come in, and beam direction is the vector of the centroid of the solid angle, namely, the center line of the solid angle from the larger end point to the cone vertex. Hope this could be helpful
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