MEAN NUSSELT NUMBER CORRELATION FOR TISE HEATSINK THERMAL DESIGN

Cast Heatsink Design Advantages

Power dissipation of chips has been raising faster than the technology needed to economically cool them. Especially in the high performance arena. To get high efficiency heatsinks presently, extrusions are machined or entire heatsinks are machined with strategically arranged fins. These methods are not as effective in high component densities or cost sensitive units compared to newer, porosity ...

Nusselt number measurements for turbulent Rayleigh-Bénard convection.

We present high-precision measurements of the Nusselt number N as a function of the Rayleigh number R for a cylindrical sample of water (Prandtl number sigma=4.4) of height L approximately equal to 50 cm and aspect ratio Gamma identical with D/L approximately equal to 1 (D is the diameter) for 3 x 10(9)< or =R< or =6 x 10(10). For R approximately 3 x 10(9) the data are consistent with existing ...

Analytical Determination of the Nusselt Number in the Entrance Region

Analytical Determination of the Nusselt Number in the Entrance Region

Modified Sampling Strategies Using Correlation Coefficient for Estimating Population Mean

This paper proposes two sampling strategies based on the modified ratio estimator using the population mean of auxiliary variable and population correlation coefficient between the study variable and the auxiliary variable by Singh and Tailor (2003) for estimating the population mean (total) of the study variable in a finite population. A comparative study is made with usual sampling strategies...