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How to set the velocity inlet angle for cassette air conditioner

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Old   June 6, 2017, 21:38
Default How to set the velocity inlet angle for cassette air conditioner
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Hi there,

I have issues with setting the velocity angle, I'm not too sure how to begin as I'm new to this software. Hope that someone could help me with the velocity inlet angle setup.
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File Type: jpg inlet.jpg (48.6 KB, 21 views)
File Type: jpg velocity inlet setup.jpg (85.8 KB, 19 views)
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Old   June 7, 2017, 00:24
Default Cartesian components
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Svetlana Tkachenko
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It is probably more intuitive to specify the velocity Cartesian components (rather than magnitude and direction). Do a hand calculation to find what the components are, and then put them into CFX.
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Old   June 7, 2017, 01:50
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Hi Светлана,

Thanks for the quick response and the suggestion. Appreciate it a lot. I did some manual calculation but i'm not sure whether is right. The following attachments are the calculations i did, would u mind checking it for me?

Mistake on the calculation: x-component is +5.2 m/s & z-component is +5.2 m/s
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File Type: jpg velocity cartesian.jpg (54.1 KB, 14 views)
File Type: jpg velocity cartesian 2.jpg (65.2 KB, 13 views)
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Old   June 8, 2017, 22:48
Default Confirm angles
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Svetlana Tkachenko
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It looks confusing, let's start with talking about what information you already know. Did I draw it correctly in the attachment? Angle BAC is 30°, and angle BAD is 45°?
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File Type: png 1.png (7.5 KB, 11 views)
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Old   June 9, 2017, 04:00
Default Sorry for the confusion
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Hey,

So sorry for the confusions. I had calculated wrongly and the following pictures are the correct 1. Hope that it is clearer to you this time.

Thank you.
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File Type: jpg 1st calculation.jpg (75.9 KB, 12 views)
File Type: jpg 2nd calculation.jpg (60.9 KB, 9 views)
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air condition simulation, velocity angle, velocity inlet


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