Year: 2023
Type: article
Abstract: The increasing complexity and miniaturization of electronic applications necessitate the development of efficient and compact heat sink designs for effective heat dissipation.This study presents a numerical investigation of heat transfer performance in circular pin-fin heat sinks featuring notches of varying sizes.Five distinct heat sink models are analyzed, with the first model comprising a solid fin, while the remaining four incorporate notched fins of different dimensions.Results indicate a significant influence of notch size on heat transfer performance, particularly for larger notches.The Nusselt number for a heat sink with a 4 mm notch size exhibits an increase of approximately 9% compared to that of a solid-fin heat sink.Additionally, the average temperature of heat sinks decreases with the introduction of notched fins, resulting in a temperature difference of 2.15℃ between solid-fin and 4 mm-sized notch heat sinks.An assessment of overall efficiency and overall effectiveness reveals that all notched heat sinks are viable options, with the 4 mm-sized notch heat sink demonstrating optimal performance in this study.This investigation provides valuable insights for the design of highperformance heat sinks in compact electronic applications.
DOI: 10.18280/mmep.100332
Institution: Middle Technical University
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W4382542500