Performance of Thermally Radiating Fractal Extended Surfaces of Varying Cross-Section
Document Type
Conference Proceeding
Publication Date
6-16-2014
Publication Title
Proceedings of the Joint Thermophysics and Heat Transfer Conference
DOI
10.2514/6.2014-3121
ISBN
978-1-62410-281-3
Abstract
The thermal performance of fractal fins with varying cross-sectional profiles thermally radiating to free space was computationally. The Sierpinski carpet fractal pattern was used to increase the surface area and decrease the system mass of extended surfaces used in waste heat rejections systems. Fin effectiveness per unit was used to quantify the thermal performance of the Sierpinski carpet extended surfaces of varying cross-sectional profile. The use of non-uniform cross-sectional profiles was found to increase the effectiveness per unit mass of Sierpinski carpet extended surfaces thermally radiating to free space. At higher order fractal iterations the use of non-uniform cross-sectional profiles also resulted in an increase in fin efficiency. The utilization of the Sierpinski carpet fractal pattern in combination with a non-uniform cross-sectional profile results in a significant increase in fin effectiveness per unit mass when compared with traditionally employed longitudinal fins of rectangular profile.
Recommended Citation
Calamas, David M., Philip Hines.
2014.
"Performance of Thermally Radiating Fractal Extended Surfaces of Varying Cross-Section."
Proceedings of the Joint Thermophysics and Heat Transfer Conference Atlanta, GA: American Society for Mechanical Engineers.
doi: 10.2514/6.2014-3121 isbn: 978-1-62410-281-3
https://digitalcommons.georgiasouthern.edu/mech-eng-facpubs/1
