My "solutions" were really little more than a set of corrective adjustments to Flomerics style calculations, and applied to a primitive (by proper CFD terms) simulator. I used such to assist in the guiding of what aspects of the designs to change, but ultimately it really came down to a mix of emperical data guided by "closest applicable theory". Seemed to predict which way things would go fairly well, but no, by no means a scrutable model in an correct engineering sense, as frustrating as that may be for some.
I had already explained previously that nutting out the full-on theory for such wasn't my goal, just to use what I could and attempt to "map" it well enough to predict behavior. Ugly as all get out to the real pros, but seemed to work well at the end of the day.
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