Viscous flow solutions over CN-235 cargo aircraft



Viscous-inviscid interaction method for unsteady low-speed airfoil flows
Tuncer, İsmail Hakkı; Platzer, Max F. (American Institute of Aeronautics and Astronautics (AIAA), 1995-01-01)
Quaternion-based nonlinear attitude control of quadrotor formations carrying a slung load
Ariyibi, Segun O.; Tekinalp, Ozan (Elsevier BV, 2020-10-01)
Control of a pair of quadrotors carrying a slung load is addressed. A hierarchical control algorithm is implemented on the leader quadrotor. The control system features a linear quadratic tracking controller on its outer loop for velocity command tracking and generates the thrust vector commands for the inner loop. The inner loop uses the to-go quaternion calculated from the thrust vector commands to control the attitude. The second quadrotor, designated as the follower quadrotor, has another hierarchical c...
Effect of turbulence modeling for the prediction of flow and heat transfer in rotorcraft avionics bay
Akin, Altug; Kahveci, Harika Senem (Elsevier BV, 2019-12-01)
In this paper, four turbulence models are compared on the basis of the predictions they produce for the flow and heat transfer in the avionics bay area of a rotorcraft. The turbulence models studied are the standard k-s, Renormalization Group (RNG) k-epsilon, realizable k-epsilon, and Shear-Stress Transport (SST) k-omega model. The avionics bay used in the study houses avionics equipment mounted on the floor and on a rack inside the bay to mimic a realistic distribution of equipment in actual rotorcraft. Th...
Low velocity impact analysis of a composite mini unmanned air vehicle during belly landing
Yüksel, Serhan; Kayran, Altan; Department of Aerospace Engineering (2010)
Mini unmanned Air Vehicles (UAV) have high significance among other UAV's, in different categories, due to their ease of production, flexibility of maintenance, decrease in weight due to the elimination of landing gear system and simplicity of use. They are usually built to meet 'hand launching' and 'belly landing' criteria in order to have easy flight and easy landing features. Due to the hand take-off and belly landing features there is no need to have a runway and this feature is a very significant advan...
Active flow control studies over an elliptical profile
Erler, Engin; Tuncer, İsmail Hakkı; Department of Aerospace Engineering (2008)
Active flow control by a jet over a 12.5% thick elliptic profile is investigated numerically. Unsteady flowfields are calculated with a Navier Stokes solver. The numerical method is first validated without the jet and with the presence of steady-blowing and pulsating jets. Three jet types, namely steady, pulsating and synthetic jets, are next compared with each other and it is shown that the most drag reduction is achieved by a synthetic jet and the most lift enhancement is achieved by a steady jet. The inf...
Citation Formats
M. Uygun and İ. H. Tuncer, “Viscous flow solutions over CN-235 cargo aircraft,” JOURNAL OF AIRCRAFT, pp. 940–944, 2004, Accessed: 00, 2020. [Online]. Available: