A Parametrical Study with Laser Sheet Visualization for an Unsteady Flapping Motion

Date

2006-06-08

Author

Kurtuluş, Dilek Funda
Farcy, Alain
Alemdaroğlu, Hüseyin Nafiz

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

187
views

0
downloads

In order to better understand the vortex dynamics and evaluation of the flow structures during the unsteady flapping motion, experimental visualizations are considered. The visualizations are represented for the phenomenological analysis of the flow. The flow is assumed to be laminar with the Reynolds number of 1000. The evaluation of the complex flow topology is investigated instantaneously for the effect of the different parameters. The vortex identification is performed for the change of incidence position xa, the change of velocity position xv and the starting angle of attack α0.

URI

https://hdl.handle.net/11511/41860

DOI

https://doi.org/10.2514/6.2006-3917

Collections

Department of Aerospace Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

An Experimental Study on Active Flow Control Using Synthetic Jet Actuators over S809 Airfoil Gul, M; Uzol, Oğuz; Akmandor, I S (IOP Publishing, 2014-6-16) This study investigates the effect of periodic excitation from individually controlled synthetic jet actuators on the dynamics of the flow within the separation and re-attachment regions of the boundary layer over the suction surface of a 2D model wing that has S809 airfoil profile. Experiments are performed in METUWIND's C3 open-loop suction type wind tunnel that has a 1 m x 1 m cross-section test section. The synthetic jet array on the wing consists of three individually controlled actuators driven by pie...
A Computational analysis on rotor-propeller arm interaction in hovering flight Yener, Serkan.; Perçin, Mustafa; Department of Aerospace Engineering (2019) This study presents a computational analysis on the interaction between rotor and different rotor frame-arm geometries in hovering flight. The influence of the frame arm on the aerodynamic performance of the rotor is assessed by using commercially available computational fluid dynamics (CFD) solver software ANSYS Inc. Fluent 17. Numerical results are validated for hovering and forward vertical climb flight conditions with thrust and torque measurements conducted on a 16x4 carbon fiber propeller. The thrust ...
A Model for Vertical-to-Horizontal Response Spectral Ratios for Europe and the Middle East Bommer, Julian J.; Akkar, Dede Sinan; Kale, Ozkan (2011-08-01) In the framework of probabilistic seismic hazard analysis, the preferred approach for obtaining the response spectrum of the vertical component of motion is to scale the horizontal spectrum by vertical-to-horizontal (V/H) spectral ratios. In order to apply these ratios to scenario or conditional mean spectra, the V/H ratios need to be defined as a function of variables such as magnitude, distance, and site classification. A new model for the prediction of V/H ratios for peak ground acceleration and spectral...
A search for new phenomena in pp collisions at root s=13TeV in final states with missing transverse momentum and at least one jet using the alpha(T) variable Khachatryan, V.; et. al. (Springer Science and Business Media LLC, 2017-05-01) A search for new phenomena is performed in final states containing one or more jets and an imbalance in transverse momentum in pp collisions at a centre-of-mass energy of 13 TeV. The analysed data sample, recorded with the CMS detector at the CERN LHC, corresponds to an integrated luminosity of 2.3 fb(-1). Several kinematic variables are employed to suppress the dominant background, multijet production, as well as to discriminate between other standard model and new physics processes. The search provides se...
A measurement of the ratio of the W and Z cross sections with exactly one associated jet in pp collisions at root s=7 TeV with ATLAS Aad, G.; et. al. (Elsevier BV, 2012-02-28) The ratio of production cross sections of the W and Z bosons with exactly one associated jet is presented as a function of jet transverse momentum threshold. The measurement has been designed to maximise cancellation of experimental and theoretical uncertainties, and is reported both within a particle-level kinematic range corresponding to the detector acceptance and as a total cross-section ratio. Results are obtained with the ATLAS detector at the LHC in pp collisions at a centre-of-mass energy of 7 TeV u...

Citation Formats

D. F. Kurtuluş, A. Farcy, and H. N. Alemdaroğlu, “A Parametrical Study with Laser Sheet Visualization for an Unsteady Flapping Motion,” 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41860.