Recent content by killerbee

more effective/efficient pre-turbo evaporative cooling...and "wet compression", similar. Also, assessing the combustion quality of humid vs dry air.

Just take 20% humid air, at 120 degrees, and run it to saturation on the psychrometric chart. The end result is higher density air at a lower temp

On a psychrometric chart, the process of humidification through evaporative cooling, increases dry air concentration about 7%, unless I ran the problem incorrectly. Also, I found studies that claim Cp/Cv = 1.32 for saturated air (steam) at 1 atm, and 1.40 is what we typically use for air...

Trying to assess how relative humidity impacts COT, compressor outlet temperature, on a turbo charger compressor. It appears that humdity reduces gamma in the temp prediction formula, thus reducing COT. Dry air results in increased COT, and humdity reduces it. Any opinions on this?

What I am really interested in, is the qantitative impact of, say, 3-4 psi of inlet restriction. I have a vehicle this applies to, a poorly designed compressor mouthpiece.

Is there any more information associated with it? Air velocity? thought I would pass this along. An excellent velocity model of turbulent plug flow http://www.cc.utsunomiya-u.ac.jp/~sugiyama/squ180/douga1.avi

It is a matter of examining the lift vector. The rearward component of the lift vector, IS by definition, induced drag. As AOA increases, the lift vector points further and further rearward. With more facing the rear, less faces upward...reduced lift. :)

The pic shown above appears to be a pressure gradient profile. Maybe not. The pressure profile results from the shear derived from the compressible nature of adiabatic gas flow. The turbulence is the source of the prerssure drop, energy lost by virtue of the gas absorbing work. No...

Fred, if it was water, would your statement be the same?

First post. Hello Everyone. Thought I would bring this back to life, as I noticed what I consider misconceptions. I only mention it because I recently came across a severe induction pressure drop in inadequate turbo plumbing. As air negotiates a bend, the inner stream must slow...