Aerodynamic shape optimization of NACA airfoils based on a novel unconstrained conjugate gradient algorithm

Fakhari, Seyyed Mojtaba; Mrad, Hatem

doi:10.1016/j.jer.2024.07.020

Journal of Engineering Research

2024

DOI: 10.1016/j.jer.2024.07.020

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Aerodynamic shape optimization of NACA airfoils based on a novel unconstrained conjugate gradient algorithm

Seyyed Mojtaba Fakhari,

Hatem Mrad

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2024

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Enhancing Engine Cylinder Heat Dissipation Capacity Through Direct Optimization (DO) Techniques

Agarwal,

Dinka,

Ilunga

2024

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Internal combustion (IC) engines are used widely as the primary power source for automobiles of all types, cars, motorcycles, and trucks. Because of the high combustion temperatures involved in the operation, the excess heat is removed by means of extended fins that increase the surface area for adequate cooling. Significant improvement in the heat dissipation characteristics of the engine cylinder can be achieved by optimizing the design of these fins. The aim of this study is to evaluate the thermal performance of engine cylinder fins using an analytical system of finite element analysis (ANSYS FEA) software, using a direct optimization (DO) approach to identify optimal fin design. Analysis shows that fin length and width play critical roles in improving cooling efficiency, lowering the maximum temperature within the cylinder to 549.46 K and enhancing total heat flux to 7225.31 W/m2, which is a 25.87% increase from the generic design, capable of heating removal of 5740.22 W/m2. The current fin design is effective but could be improved in heat dissipation, mainly at fin tips. To optimize thermal performance while minimizing material costs, a balanced fin dimension is recommended. Alternative materials, transient heating analysis, and experimental verification may be examined in the future to achieve a total understanding of fin geometry and behavior under real operating conditions. These insights lay a foundation to accelerate cooling systems development in the automotive, aerospace, and heavy equipment industries, where efficient heat transfer is key for performance and long-term durability.

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Enhancing Engine Cylinder Heat Dissipation Capacity Through Direct Optimization (DO) Techniques

Agarwal,

Dinka,

Ilunga

2024

Processes

View full text Add to dashboard Cite

show abstract

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Aerodynamic shape optimization of NACA airfoils based on a novel unconstrained conjugate gradient algorithm

Cited by 1 publication

References 45 publications

Enhancing Engine Cylinder Heat Dissipation Capacity Through Direct Optimization (DO) Techniques

Enhancing Engine Cylinder Heat Dissipation Capacity Through Direct Optimization (DO) Techniques

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