Had a play, nowhere near as rigorous as your analysis
It is fascinating stuff
Have taken a random snapshot of 100 data sets(out of several thousand) from the calibrated
log2 .
My manipulation skills not up to dealing with all at one sitting.
Averages :
Gives:
Power in (145.226601/R) Watts (cf 72.61W} (V^2/R) not found a value. for R
Heat Flux 72.098 Watts (cf 72.26W) (k*A*DT/L) k=293
Heat to Water 70.090 Watts (cf 70.256W) ( (FR*Cp*(Tin-Tout)) At a flow rate of 3.22lpm and 4186 heat capacity)
C/W values (140 sq mm die)
TIM : 0.0356 C/W (cf 0.0359 C/W)
WB : 0.0973 C/W
WB+TIM : 0.1329 C/W
WB+TIM+Offset : 0.1581 C/W (1.4mm Offset)
The (WB+TIM+Offset) C/W is usually quoted(e.g JoeC) as the C/W for the waterblock.
It would be fascinating to compare results with JoeC's(140 sq mm die)
Do you have any of the wbs he tested ?
Most preferred would be one also tested by Billa (on a 100sqmm die) and pHaestus(on a cpu).
Sorry, I am dreaming up work for you whilst I go to the pub.