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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
Yes, yes!!!

Much better to have accurate turbo compressor test data.

However, if it is not and never will be made available is it better to fly blind or use a little interpolation so we have at least something to work with instead of blind acceptance.

I suspect compressor wheels with close to the same size inducer and exducer are going to be with in a reasonable percentage of each other as to gross flow rates as compressor A/R's dose not effect performance much. If a similar sized wheel is on its peak efficiency island at 35# and on the edge at 45# a magic design is not going to move this much but it might bump the net efficenty some. But this is just a guess.

Turbines might be a very different story as they function differently and they are sensitive to A/R changes.

Still, tests under the same conditions are going to be the ultimate for making decisions.

Last edited by 911st; 01-04-2010 at 11:10 AM..
Old 01-04-2010, 10:59 AM
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