Aeroelastic Analysis of a Cycloidal Rotor Under Various Operating Conditions

Gagnon, Louis; Morandini, Marco; Quaranta, Giuseppe; Masarati, Pierangelo; Xisto, Carlos; Páscoa, José

doi:10.2514/1.c034005

Cited by 9 publications

(2 citation statements)

References 16 publications

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“…Another important step was made by Wheatley [7,8], when he built an experimental stand on which he tested a 4-blade cycloidal rotor equipped with blades with the NACA 0012 profile. Author described the distribution and the way in which forces are generated on the rotor with determination of the relationships between them Important work was also performed in relation to the European CROP [9][10][11][12] (Cycloidal Rotor Optimized for Propulsion) project of 2015, which aimed to create a "radically different propulsion system for aerial vehicles". In a series of papers, the authors examined the influence of the geometrical properties of the cycloidal rotor itself on its aerodynamic efficiency and determined the optimal angles for MAVs equipped with a cycloidal rotor while hovering.…”

Section: Introductionmentioning

confidence: 99%

CFD modelling of a fan with a cycloidal rotor

Staśko

Majkut

Dykas

et al. 2022

J. Phys.: Conf. Ser.

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Despite the wide possibilities of using a cycloidal rotor in the form of propulsion systems for unmanned aerial vehicles (UAV), cycloidal propellers for sea-going ships, rotors of wind turbines or sea or river cycloidal energy converters, there is practically no research on the use of this solution in the form of a cycloidal rotor fan (CRF) for HVAC (heat, ventilation & air conditioning) applications. The main features of such a machine, compared to conventional solutions, is a possibility of changing the flow direction only by changing pitch angles of the rotor blades. This study analysed two variants of the fan, first equipped with an asymmetrical CLARK Y profile, and other with a symmetrical NACA0012. Numerical simulation of cycloidal rotor fan developed in Ansys CFX was presented, that enables the simulation of fan operation. The results obtained from CFD for both variants were compared with those obtained during experimental measurements made with the use of Laser Doppler Anemometry (LDA). The comparison showed good agreement between the numerical analysis and the performed experiment. Despite the operation based on the same cycloidal regulation settings and rotation speed, the fan equipped with symmetrical blades slightly more curved the flow angle than the asymmetrical one.

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Section: Introductionmentioning

confidence: 99%

CFD modelling of a fan with a cycloidal rotor

Staśko

Majkut

Dykas

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…The idea of the cycloidal rotor is mostly met in propulsion systems of MAVs (micro air vehicles). In this field, a mention should be made of the European CROP (Cycloidal Rotor Optimized for Propulsion) project from 2015, which aimed to create a "radically different propulsion system for aerial vehicles" [1][2][3]. The authors demonstrated the possibility of creating a new propulsion system based on a cycloidal device called the PECyT (plasma enhanced cycloidal thruster) [4].…”

Section: Introductionmentioning

confidence: 99%

Archives of Thermodynamics

Staśko,

Majkut,

Dykas

et al. 2021

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A fan with a cycloidal rotor (CRF) is a promising design for application in HVAC (heat, ventilation and air conditioning) systems. Despite the widespread use of the CRF design as a form of propulsion, there are practically no scientific publications examining the possibility of using it as the HVAC fan. The choice of the cycloidal rotor facilitates the operating procedure and widens the range of operating conditions. The paper focuses on the use of the CRF in HVAC, especially as a blowing machine integrated with rectangular ducts, presenting, and discussing the search for the most efficient numerical model. The way of discretizing the computational domain, the turbulence models and the time integration method were tested. A four-blade open rotor fan with a cycloidal impeller was used both in the numerical and in the experimental model. The 2D and 3D CRF models created in the Ansys CFX package were adopted. After a mesh-independence study, different turbulence models were tested for the selected mesh. In the case of the 2D model, various turbulence models such as the SST and the RNG k-ε options were tested and compared with each other. The computational fluid dynamics simulations were compared with in-house experimental results of the velocity field measurements performed by means of laser Doppler anemometry and thermoanemometry. It turned out that the considered numerical models did not reflect the experimental measurements quantitatively. This may be due to the small differences in the shapes of the cycloids of the rotor blades in the numerical model and in real geometry.

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Performance improvement and start-up characteristics of a cyclorotor using multiple plasma actuators

Benmoussa

Páscoa

2021

Meccanica

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Aeroelastic Analysis of a Cycloidal Rotor Under Various Operating Conditions

Cited by 9 publications

References 16 publications

CFD modelling of a fan with a cycloidal rotor

CFD modelling of a fan with a cycloidal rotor

Archives of Thermodynamics

Performance improvement and start-up characteristics of a cyclorotor using multiple plasma actuators

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