New WT_Perf v3.04.00c-mlb alpha available

Hi,

Eliot Peterson of Clipper found that answers from WT_Perf did not change much when toggling between sheared and unsheared flow. This was caused by an ancient bug that appeared when specifying dimensional input parameters. I was dividing the nondimensional local radius by the dimensional hub height in the wind-shear calculation. This made the shear very tiny.

Please stop using previous versions of WT_Perf and start using the new alpha version:

http://wind.nrel.gov/designcodes/simulators/wtperf/alpha/

My sincere apologies for any problems this may have caused.

Marshall