On Monday July 6th, the nanoHUB will be intermittently unavailable due to scheduled maintenance. We apologize for any inconvenience this may cause. close

# Support

## Support Options

• ### Knowledge Base

Find information on common issues.

• ### Wish List

Suggest a new site feature or improvement.

• ### Support Tickets

Check on status of your tickets.

## Fin Temperature CDF Tool

Version 1
by Timothy S Fisher
Version 2
by Timothy S Fisher

Deletions or items before changed

1 2 3 4 === Calculation of Fin Temperature for Adiabatic Tip and Infinite Fins === - The following CDF tool calculates the normalized fin temperature ($\theta(x)/\theta_{base}$ for two cases: + The following CDF tool calculates the normalized fin temperature ($\theta(x)/\theta_{base}$) for two cases: * Case 1: Adiabatic fin tip * Case 2: Infinitely long fin + In both cases, the cross sectional area of the fin is assumed to be constant. We use the conventional definition of the fin eigenvalue $m$: - $m = \sqrt{\frac{hP}{kA_c}}$ + $m = \sqrt{\frac{hP}{kA_c}}$ + + where: + * ''h'' is the convective heat transfer coefficient + * ''P'' is the fin perimeter + * ''k'' is the fin's thermal conductivity + * $A_c$ is the fin's cross-sectional area + + ===Graphical CDF Tool=== + + The CDF tool follows. Note that the distance from the fin base is normalized by the fin length (i.e., ''x'' in the formulas below represents the dimensional distance from the base divided by the fin length ''L''). + + [[File(Fin_temp.cdf)]]