Coupling of a multibody simulation tool for rotary systems with an unsteady viscous flow solver



Computational investigation of flow through a louvered inlet configuration
Tuncer, İsmail Hakkı (2001-01-01)
Viscous, subsonic flows through a flush louvered inlet configuration without inlet vanes are investigated using the overflow Navier-Stokes solver with overset grids. The variation of the mass flow rate through the engine intake as a function of intake pressure is assessed. The computed results show that the flow distortion and the pressure loss in the plenum chamber are significant, yet a sufficient amount of mass flow rate may be obtained at the expense of total pressure recovery.
Experimental and Numerical Results of a Flapping Wing Four Bar Mechanism
Şenol, Münire Gülay; Arıkan, Kutlu Bilge; Kurtuluş, Dilek Funda (2017-01-13)
This paper exploresthedesign and testing ofa flapping wing four-bar mechanism. A four-bar linkage system kinematic analysis is introduced for flapping wing motion. Four-bar mechanism is activated by a servo motor which is driven by microcontroller. The wing undergoes apure flapping motion at afixed pitchangle. Force measurements are performed for hover modeby using a force transducer. In addition, 3D numericalanalyses are performed and the results are compared with the experim...
Numerical and experimantal analysis of flapping motion
Sarıgöl, Ebru; Alemdaroğlu, Hüseyin Nafiz; Department of Aerospace Engineering (2007)
The aerodynamics of two-dimensional and three-dimensional flapping motion in hover is analyzed in incompressible, laminar flow at low Reynolds number regime. The aim of this study is to understand the physics and the underlying mechanisms of the flapping motion using both numerical tools (Direct Numerical Simulation) and experimental tools (Particle Image Velocimetry PIV technique). Numerical analyses cover both two-dimensional and three-dimensional configurations for different parameters using two differen...
Aerodynamic parameter estimation using flight test data
Kutluay, Ümit; Platin, Bülent Emre; Mahmutyazıcıoğlu, Gökmen; Department of Mechanical Engineering (2011)
This doctoral study aims to develop a methodology for use in determining aerodynamic models and parameters from actual flight test data for different types of autonomous flight vehicles. The stepwise regression method and equation error method are utilized for the aerodynamic model identification and parameter estimation. A closed loop aerodynamic parameter estimation approach is also applied in this study which can be used to fine tune the model parameters. Genetic algorithm is used as the optimization ker...
Coupling of a multibody simulation tool for the analysis of rotary systems with a panel based flow solver and a navier-stokes flow solver
Soğancı, Semih; Kayran, Altan; Tuncer, İsmail Hakkı; Department of Aerospace Engineering (2018)
In rotorcraft design, aeroelastic effects on the main rotor blades play a critical role in the accurate estimation of the external loading acting on the structure. The external loading is mainly due to the aerodynamic loads and the inertial loads on the main rotor blades. High aspect ratio blades largely deform in flapping direction on top of rigid body flapping, and due to the rigid and elastic flapping motion, the airloads acting on the blades change continuously. Hence, the rotor blade loads analysis sho...
Citation Formats
S. Soğancı, A. Kayran, and İ. H. Tuncer, “Coupling of a multibody simulation tool for rotary systems with an unsteady viscous flow solver,” 2018, Accessed: 00, 2020. [Online]. Available: