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Inadequate kinetic energy loss
3 Attachment(s)
Hi to all.
I’m trying to estimate kinetic energy loss for turbine rotor wheel (I have one half of stage only). Calculation residuals proved to be good as well as monitor points, so I plot a chart for kinetic energy loss spanwise distribution. I used two formulas: 1. dzita = (prel*in-prel*out)/(prel*in-p out) 2.dzita = (prel*in-prel*out)/(prel*out-p out), where prel* is total pressure in rel frame. Actually I don’t know which one is correct exactly. But there's considerable part in the chart that yields negative loss! What's wrong? I attached domain picture, expected chart and calculated one (via both formulas). |
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