Numerical investigation of the effect of perforation inclination angle on the performance of a perforated pin-fin heatsink using two-phase mixture model

Shahsavar, Amin; Farhadi, Peyman; Askari, Ighball Baniasad

doi:10.1016/j.enganabound.2023.08.030

Cited by 7 publications

(1 citation statement)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result of numerical studies, the authors came to the conclusion that longitudinal perforations make it possible to reduce the pressure drop, metal consumption of the structure, and fan power, while the heat transfer coefficient and Nu number increase by 30-40% compared to an unperforated radiator. Shahsavar et al [14] investigated the effect of perforation angle on the performance of a pin-fin heat sink. The research results showed that an increase in the angle of inclination of the perforations leads to a decrease in the thermal resistance coefficient R: in the case of an inclination angle of 0° R=7.6 K•m 2 /W, in the case of an inclination angle of 45° R=6.4 K•m 2 /W.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of dust particle deposition and heat transfer in fin-plate radiators

Soloveva,

Solovev,

Shakurova

et al. 2023

E3S Web Conf.

View full text Add to dashboard Cite

Fin-plate radiators are actively used in cooling systems for microelectronic devices. Radiators often become dusty during operation, which leads to decrease in heat flow and heat dissipation. Consequently, the possibility of device overheating and failure increases. We carried out numerical studies to assess the influence of the radiator geometry on the deposition of dust particles and, as a consequence, the change in heat flow. We built 3D models of plate radiators with different types of fins (flat and corrugated) and the distance between them. The problem of air flow with dust particles flowing around the radiator has been solved. We revealed the dependences of the efficiency of particle deposition and changes in heat flow on the geometry of the radiator, the size of dust particles and the distance between the fins.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical simulation of dust particle deposition and heat transfer in fin-plate radiators

Soloveva,

Solovev,

Shakurova

et al. 2023

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

Enhancing heat exchanger performance with perforated/non‐perforated flow modulators generating continuous/discontinuous swirl flow: A comprehensive review

Rahman,

Hasnain

2024

Heat Trans

View full text Add to dashboard Cite

Heat exchangers are crucial in transferring heat and finding applications across various industries. Numerous strategies have been devised to improve and optimize the heat transfer process within these systems. Among these, passive methods have garnered significant attention for their ability to operate without external power consumption. This article examines the recent experimental and computational studies conducted by researchers since 2018 on passive enhancement techniques, especially twisted tape, wire coil, swirl flow generator, and others, to boost the thermal efficiency of heat exchangers and aid designers in adopting passive augmentation methods for compact heat exchangers. Recently, researchers' new class of flow maldistribution devices, referred to as swirl flow devices, has gained attention; which enhances convective heat transfer by introducing swirl into the main flow and disrupting the boundary layer at the tube surface through alterations in surface geometry. Twisted tape inserts are devices that demonstrate better performance in laminar flow compared to turbulent flow. Conversely, other passive techniques like ribs, conical nozzles, and conical rings are generally more effective in turbulent flow than laminar flow. A recent research trend is the utilization of nanofluids in combination with other passive heat transfer enhancement techniques like turbulators, ribs, and twisted tape inserts in heat exchangers, which can reduce exergy losses and improve overall convective heat transfer coefficient and effectiveness of heat exchanger.

show abstract

Enhancement of heat dissipation rate of a heat sink with perforated fins using CFD and Swarm Intelligence

Maji,

Deshamukhya,

Choubey

2024

Heat Trans

View full text Add to dashboard Cite

This study aims to enhance heat dissipation in a heat sink by using perforated pin fins. The research specifically explores circular pin fins with circular perforations that taper from one end to the other. Through three‐dimensional computational fluid dynamics (CFD) simulations, the study evaluates the impact of tapered perforations on heat dissipation, performance, and pressure loss in circular fins. The results indicate that fins with perforations consistently achieve higher heat dissipation rates compared to solid fins, up to certain perforation sizes and numbers. Notably, fins with tapering in perforations, where the inner and outer diameters are 4 and 5 mm, respectively, exhibit the highest system performance, with a maximum increase of 6.1% over fins without tapering. Additionally, two advanced swarm intelligence algorithms, Particle Swarm Optimization (PSO) and Teaching Learning Based Algorithm (TLBO), were employed to assess the performance of heat sinks with both converging and diverging tapered perforations. The optimized results from TLBO were compared with those from PSO for validation. An intriguing discovery of this research is that fins with converging perforations achieve the highest system performance, followed by fins without tapering, and then fins with diverging perforations.

show abstract

Numerical investigation of the effect of perforation inclination angle on the performance of a perforated pin-fin heatsink using two-phase mixture model

Cited by 7 publications

References 41 publications

Numerical simulation of dust particle deposition and heat transfer in fin-plate radiators

Numerical simulation of dust particle deposition and heat transfer in fin-plate radiators

Enhancing heat exchanger performance with perforated/non‐perforated flow modulators generating continuous/discontinuous swirl flow: A comprehensive review

Enhancement of heat dissipation rate of a heat sink with perforated fins using CFD and Swarm Intelligence

Contact Info

Product

Resources

About