angle.
Equipment manufacturers had looked to adjustability to differentiate their product lines from competing brands. Custom fitting had become very important as golf equipment companies expanded shaft flex options. TaylorMade, Callaway Golf, Ping Golf, and Nickent Glof all launched series of drivers that allowed golfers to install different shafts into the driver head to produce different lau
developed.
* previous techniques
techniques and devices
shortness
use a finned surface
thicknesses become very large
install promoter
(small roughness elements,
rectangular ribs)
no appreciable increase
in heat transfer rates
Present authors have proposed a unique type of promoter : "V-shaped" is the best.
And they experiment to find adequate "height and angle"
2-2. Experim
install promoter
(small roughness elements,
rectangular ribs)
no appreciable increase
in heat transfer rates
Present authors have proposed a unique type of promoter : "V-shaped" is the best.
And they experiment to find adequate "height and angle"
2-2. Experimental Apparatus and Measurements
*Apparatus
- heat transfer plate and side plate
- V-shaped promoter(1mm thick vinylchlo
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They have
of turbulent natural convection can be enhanced by the present promoters.
The present promoters redirect the high temperature fluids in the vicinity of the heated plate and introduce the low-temperature ambient fluids into the region behind the promoters.
The optimum height and the attack angle that make the overall heat transfer coefficients a maximum were determined for the present pro