CFD Analysis of an Isolated Main Helicopter Rotor for a Hovering Flight at Varying RPM

Pandey, Krishna Murari; Kumar, Upendra; Kumar, Gaurav; Deka, Dhrubajyoti; Das, Dipankar; Surana, A.

doi:10.1115/imece2012-89227

Cited by 9 publications

(6 citation statements)

References 3 publications

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“…Four-bladed rotors are designed by CATIA V5 software. Coordinates are downloaded from the UIUC airfoil data site, and the 2D profile can be generated from the airfoil data [17].…”

Section: Methodsmentioning

confidence: 99%

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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“…Four-bladed rotors are designed by CATIA V5 software. Coordinates are downloaded from the UIUC airfoil data site, and the 2D profile can be generated from the airfoil data [17].…”

Section: Methodsmentioning

confidence: 99%

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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show abstract

“…In this research, the software like CFD tools, ANSYS R19.2 and Fluent are used for flow analysis [18]. The isolated blades are selected to reduce the complexity of the structure in the analysis [10,16]. The high-speed helicopter called Apache helicopter is a four-bladed helicopter, which uses HH02 airfoil for its wings.…”

Section: Methodology and Proceduresmentioning

confidence: 99%

“…The airfoil coordinates are downloaded for both HH02 and NASA SC(2)-0714 airfoils [24]. These coordinates are imported to CATIA V5 software to design the blades [10]. The details of the geometry are presented in Tab.…”

Section: Modellingmentioning

confidence: 99%

“…The solver is selected and Reynolds averaged Navier Stokes (RANS) turbulence model is used. Various models are used for analyzing the helicopter blades in MRF techniques [10,17].…”

Section: Grid Generation and Solver Settingmentioning

confidence: 99%

“…The speed of the Helicopter is limited because of having complex structure and aero-dynamical design [10]. The speed is limited by the circumstances like formation of shock at the tip of the rotor blade, behavior of flow in the retreating side, change of velocity from root to tip, fuselage wing interaction and main rotortail rotor interaction, [11].…”

Section: Introductionmentioning

confidence: 99%

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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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Optimization and Vibrational Analysis of Coaxial Rotor for Special Purpose Vehicle

Kumar¹,

Balamurugan²,

Kishore³

et al. 2022

Lecture Notes in Mechanical Engineering

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CFD Analysis of an Isolated Main Helicopter Rotor for a Hovering Flight at Varying RPM

Cited by 9 publications

References 3 publications

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

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

Forward Flight Performance Analysis of Supercritical Airfoil in Helicopter Main Rotor

Optimization and Vibrational Analysis of Coaxial Rotor for Special Purpose Vehicle

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