Airfoil Shape Optimization based on Surrogate Model

Mukesh, R.; Lingadurai, K.; Selvakumar, U.

doi:10.1007/s40032-017-0382-x

Cited by 4 publications

(6 citation statements)

References 5 publications

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“…The shape of the airfoil is the first parameter for the efficient aerodynamic design as it plays a major role in deciding the lift and drag [13,14]. Various airfoils are currently used in the applications like aircraft, helicopters, wind turbines and propeller blades design.…”

Section: Introductionmentioning

confidence: 99%

“…However, some specialized airfoils are used for the wind turbine applications [15] or helicopter blades. The HH02 is a Hughes helicopter airfoil, which is specifically used in the Apache helicopters for obtaining good performance in rotor blades [13]. The supercritical airfoils are specially used in the supersonic aircraft to cross the sonic barrier [6].…”

Section: Introductionmentioning

confidence: 99%

“…The supercritical airfoils are specially used in the supersonic aircraft to cross the sonic barrier [6]. Various researches are carried out to increase the aerodynamic efficiency as it helps in enhancing the payload and decreasing the fuel usage [13]. This research mainly deals with the calculation of thrust, which is produced by two different rotors with different airfoils.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Forward Flight Performance Analysis of Supercritical Airfoil in Helicopter Main Rotor

Hasan¹,

Mukesh²,

Krishnan³

et al. 2022

Intelligent Automation &Amp; Soft Computing

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In this research, the aerodynamic performance and flow characteristics of NASA SC (2)-0714 airfoil and HH02 airfoil in the helicopter main rotor are evidently analyzed. The supercritical airfoil is used in the aircraft for attaining better transonic and high-speed flow characteristics. Moreover, a specialized helicopter airfoil called HH02 is used in the Apache helicopter rotor for increasing the operational speed. As most of the high-speed helicopters are using four-bladed main rotor configuration, it is analyzed with prior attention. The lift and thrust act in different directions for the forward phase of the flight whereas the lift and thrust act in the same direction for the other phases of flight, which is analyzed in this work. The computational analysis is done by using ANSYS Fluent whereas the rotational analysis is done by using the Multiple Reference Frame (MRF) method. An analysis is carried out for different RPM of 400,600 and 800 with the combination of 0.3, 0.4 and 0.5 Mach numbers with the assistance of grid independence test. The result shows that the NASA SC (2)-0714 rotor increases the thrust of the rotor around 5% to 10% under various rotor and forward speeds. Thus, the results proves that the supercritical airfoil is highly capable of producing higher thrust and good aerodynamic characteristics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Forward Flight Performance Analysis of Supercritical Airfoil in Helicopter Main Rotor

Hasan¹,

Mukesh²,

Krishnan³

et al. 2022

Intelligent Automation &Amp; Soft Computing

Self Cite

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“…These factors have attracted researchers to the application of Artificial Neural Networks (ANNs) with advanced optimisation algorithms for various aircraft design problem enhancements [4,[21][22][23][24]. Actually, an ANN is used mostly to model the objective functions for the design problem, where the computing of the objective function is time-consuming and computationally expensive [25,26]. However, as stated above, it is important to remember that using surrogate models instead of the real objective functions for complex industrial problems may degrade the accuracy of the results [5].…”

Section: Introductionmentioning

confidence: 99%

“…To overcome such a problem bio-inspired algorithms which are based on natural behaviour, such as Particle Swarm Optimisation (PSO) algorithms [29] and Evolutionary Algorithms (EA) [30], have been developed [31]. Keeping in view the success of EAs [32], ANNs had been used in many projects to construct a surrogate model to reduce the overall computational cost and to obtain greater optimality in the solutions [14,25,[32][33][34][35]. The PSO, for example, has a simple mechanism and is computationally inexpensive in terms of memory requirements relative to other population techniques [36,37], and has been implemented by many researchers in various algorithms with an ANN to model the objective function, also the PSO has been used to help with the training of ANNs [38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Artificial Intelligence to Enhance Aerodynamic Shape Optimisation of the Aegis UAV

Azabi

Chai

Kipouros

2019

MAKE

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This article presents an optimisation framework that uses stochastic multi-objective optimisation, combined with an Artificial Neural Network (ANN), and describes its application to the aerodynamic design of aircraft shapes. The framework uses the Multi-Objective Particle Swarm Optimisation (MOPSO) algorithm and the obtained results confirm that the proposed technique provides highly optimal solutions in less computational time than other approaches to the same design problem. The main idea was to focus computational effort on worthwhile design solutions rather than exploring and evaluating all possible solutions in the design space. It is shown that the number of valid solutions obtained using ANN-MOPSO compared to MOPSO for 3000 evaluations grew from 529 to 1006 (90% improvement) with a penalty of only 8.3% (11 min) in computational time. It is demonstrated that including an ANN, the ANN-MOPSO with 3000 evaluations produced a larger number of valid solutions than the MOPSO with 5500 evaluations, and in 33% less computational time (64 min). This is taken as confirmation of the potential power of ANNs when applied to this type of design problem.

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Wind Tunnel Testing and Validation of Helicopter Rotor Blades Using Additive Manufacturing

Hasan

Mukesh²,

Krishnan

et al. 2022

Advances in Materials Science and Engineering

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This research paper aims to validate the aerodynamic performance of rotor blades using additive manufacturing techniques. Wind tunnel testing is a technique used to find the flow characteristics of the body. Computational fluid dynamics (CFD) techniques are used for aerodynamic analysis, and validation should be done using wind tunnel testing. In the aerodynamic testing of models, additive manufacturing techniques help in validating the results by making models easily for wind tunnels. Recent developments in additive manufacturing help in the aerodynamic testing of models in wind tunnels. The CFD analysis of helicopter rotor blades was analyzed in this research, and validation was done using additive manufacturing techniques. Computational analysis was carried out for static analysis for the forward speeds of Mach numbers 0.3, 0.4, and 0.5. The results obtained were satisfactory to the previous results and were validated with wind tunnel testing. Results proved that the error percentage was lower, and the computational analysis was valid. In this research, models were designed using the FDM technique for wind tunnel testing as it is cost-effective and easy to manufacture.

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Airfoil Shape Optimization based on Surrogate Model

Cited by 4 publications

References 5 publications

Forward Flight Performance Analysis of Supercritical Airfoil in Helicopter Main Rotor

Forward Flight Performance Analysis of Supercritical Airfoil in Helicopter Main Rotor

Artificial Intelligence to Enhance Aerodynamic Shape Optimisation of the Aegis UAV

Wind Tunnel Testing and Validation of Helicopter Rotor Blades Using Additive Manufacturing

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