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Quantifying the swirl in CFX, Swirl Number/Swirl Angle |
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May 1, 2012, 02:06 |
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#21 |
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Glenn Horrocks
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Have a look in my PhD thesis - http://hdl.handle.net/2100/248
See page 74, in the literature review. |
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May 2, 2012, 23:35 |
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#22 | |
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May 3, 2012, 00:48 |
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#23 |
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Glenn Horrocks
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I mentioned this because I wanted to make the point that there is no universal definition of swirl number. It is defined based on what makes sense in the application.
In IC engines it makes a lot of sense to normalise against crankshaft velocity as it is the scaling factor on all engine flows. But for a GT this may not be the case, so an equivalent swirl number normalised by shaft speed may be meaningless. |
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July 24, 2016, 23:28 |
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#24 | |
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zhenmu
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I confused for CEL equation. The W in the swirl number equation is tangential velocity. So, why you use sqrt((Velocity u^2)+(Velocity w^2)) for the W ? Why isn't velocity u or velocity w used for W? |
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