EFFECT OF FLOW DISTURBANCE GEOMETRY ON THERMAL HYDRAULIC PERFORMANCE OF FORCED AIR-COOLED HEAT SINKS FOR CPU COOLING

Annisa Fitriola Suryawati, . (2026) EFFECT OF FLOW DISTURBANCE GEOMETRY ON THERMAL HYDRAULIC PERFORMANCE OF FORCED AIR-COOLED HEAT SINKS FOR CPU COOLING. R.E.M. (Rekayasa Energi Manufaktur) Journal, 11 (1). pp. 179-188. ISSN 2528-3723

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Abstract

The increasing thermal load in modern electronic devices necessitates efficient and reliable cooling strategies, particularly for air-cooled heat sinks in CPU applications. This study numerically investigates the effect of flow-disturbance geometry on the thermal–hydraulic performance of a forced air-cooled channel under constant heat flux. Three configurations—circular, square, and octagonal—were evaluated against a baseline using a validated CFD approach based on the RANS equations with the k–ω SST model, with a 7.65% deviation. The results show that geometric disturbances significantly influence temperature distribution and pressure drop. The octagonal model achieves the lowest excess temperature across airflow velocities of 1–2 m/s but produces the highest pressure drop, while the square model provides notable temperature reduction with moderate pressure loss by improving airflow uniformity and disrupting the thermal boundary layer. Overall, the square configuration offers the most optimal balance between heat transfer and energy efficiency.

Item Type: Article
Additional Information: [No.Panggil: 2210311090] [Pembimbing: Damora Rhakasywi] [Penguji 1: James Julian] [Penguji 2: Riki Hendra Purba]
Uncontrolled Keywords: CPU Cooling; heat sinks; temperature
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Fakultas Teknik > Program Studi Teknik Mesin (S1)
Depositing User: ANNISA FITRIOLA SURYAWATI
Date Deposited: 28 Aug 2026 02:30
Last Modified: 01 Sep 2026 02:41
URI: http://repository.upnvj.ac.id/id/eprint/52437

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