Aerodynamic performance predictions of two and three dimensional configurations by using a finite element package

Download
1998
Vatandaş, O Ergüven

Suggestions

AERODYNAMIC ANALYSIS OF SUPERSONIC FLOW OVER A SIMPLE AIRCRAFT GEOMETRY BY USING CST AND PANEL METHODS
Uğur, Levent; Turan, Sena; Gedik, Ramazan Kürşat; Adam, Ali Ata; Sezer Uzol, Nilay; Ertem, Sercan; Ayan, Erdem (2021-09-10)
In this paper, the aerodynamic properties of a selected aircraft geometry are calculated in supersonic flow condition using PANAIR. PANAIR is an open-source high-order panel method solver for irrotational and inviscid flows and it is more efficient than higher fidelity CFD analyses for the preliminary design process since it is faster and easier to use. A batch of supersonic analyses is completed for different wing/body configurations for the selected aircraft geometry and with various panel g...
Aerodynamic modelling and optimization of morphing wings
Körpe, Durmuş Sinan; Özgen, Serkan; Department of Aerospace Engineering (2014)
This thesis deals with aerodynamic optimization of morphing wings under performance and geometric constraints. In order to perform the optimization process, flow solvers computing aerodynamic lift and drag were developed as a function evaluator. A gradient based optimization method was used in order to develop the optimization algorithm. Three dimensional panel method solver was developed in order to obtain lift, pressure drag and induced drag values for a finite wing. Obtained results were compared with di...
Aerodynamic Design Analysis Of Missiles With Strake Configurations At Supersonic Mach Numbers
Usta, Engin; Kıvanç, Arslan; Tuncer, İsmail Hakkı (2015-09-10)
Missiles having very low aspect ratio fins are generally difficult to model by using engineering level aerodynamics tools and linear theories break due to complex nature of the flow adjacent to the mutual interference of the body and fin. For this reason fast prediction methods are not very successful in most of the cases, and there is a need for research. In this paper, computational methods are used to predict normal force and center of pressure of missiles with very low aspect ratio fin configuration. A ...
Aerodynamic characterization of 'DelFly Micro' in forward flight configuration by force measurements and flow field visualization
Deng, Shuanghou; Perçin, Mustafa; van Oudheusden, Bas (2015-01-01)
This study explores the flow structures and unsteady force generation mechanisms of a flapping-wing micro air vehicle 'DelFly Micro' in forward flight configuration. Stereoscopic Particle Image Velocimetry (Stereo-PIV) measurements were performed to acquire three dimensional flow fields in the wake. Six components of forces and moments were captured simultaneously by use of a miniature force sensor.
Aerodynamic modeling and parameter estimation of a quadrotor helicopter
Kaya, Derya; Kutay, Ali Türker (2014-01-01)
This study focuses on aerodynamic modeling of a quadrotor helicopter and the estimation of the model parameters in wind tunnel tests for hover, vertical climb, and forward flight conditions. The motion of a quadrotor is mainly affected by the aerodynamic forces and moments generated by rotors. Accurate calculation of rotor loads is essential for high fidelity simulation of a quadrotor. Momentum and blade element theories are used to obtain expressions for rotor forces and moments for a traveling vehicle. Th...
Citation Formats
O. E. Vatandaş, “Aerodynamic performance predictions of two and three dimensional configurations by using a finite element package,” Middle East Technical University, 1998.