The current empirical study was conducted to investigate the wall neighborhood impact on the two-dimensional flow structure and heat transfer enhancement behind a square cylinder. The low- velocity open-circle wind tunnel was used to carry out the study tests considering the cylinder diameter (D)-based Reynolds number (ReD) of 5130. The selected items to compare were different gap he...

Laminar stagnation flow, axi-symmetrically yet obliquely impinging on a rotating circular cylinder, as well as its heat transfer is formulated as an exact solution of the Navier-Stokes equations. Rotational velocity of the cylinder is time-dependent while the surface transpiration is uniform and steady. The impinging stream is composed of a rotational axial flow superposed onto irrotational rad...

We address the asymptotic behavior of ?-Gauss curvature flow, for ?>1/2, with a complete non-compact convex initial hypersurface which is contained in cylinder bounded cross section. show that flow converges, as t?+?, locally smoothly to translating soliton uniquely determined by hypersurface.

Vortex formation from a horizontal cylinder coincident with a free surface of a shallow water flow having a depth of 25.4 mm was experimentally investigated using the particle image velocimetry technique. Instantaneous and time-averaged flow patterns in the wake region of the cylinder were examined for three different cylinder diameter values under the fully developed turbulent boundary layer c...

The flow around heated cylinders has already been investigated by many researchers. Object of the present examination is an electrically heated circular cylinder placed in a parallel flow in a wind tunnel. The experimental tests were carried out at low Reynolds numbers (Re<200), thus the flow field was approximately two dimensional (same flow in every normal plan of the heated circular cylinder...

In this work, result of experimental investigation on interaction of fuel spray generated by a swirled type injector, with air motion in a prototype cylinder are presented. Experiments were carried out by planar imaging and particle image velocimetry (PIV) techniques in order to provide information about the spray structure evolution and instantaneous velocity distribution of air motion and ...

The 3D structure of the wake behind a circular cylinder in cross-flow is studied experimentally using stereo PIV technique, Reynolds number was around 5 thousands. statistical characteristics along axis are effectively constant and thus 2D, however instantaneous flow-field fully 3D. Within dynamical flow, streamwise vortices spots velocity component pulsations detected.