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Showing 1 to 8 of 8 for “"junction flow"”.
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The effect of a fillet on a wing/body junction flow
Time-averaged properties of a wing-body-junction flow surrounding a cylindrical wing with a 1.5:1 elliptical nose and a NACA 0020 tail have been compared to those for the above wing with a 1.5 inch radius fillet normal to the wing's surface. An attempt was made to determine the effectiveness of the …
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Measurements in the bimodal region of a wing-body junction flow with a rapidly-scanning two-velocity-component laser-Doppler velocimeter
The structure and behavior of the bimodal flow of the horseshoe vortex at the nose of a wing-body junction flow was studied. The wing consists of a 3:2 elliptic nose and a NACA 0020 tail joined at the maximum thickness (t). Measurements were performed with an approach flow conditions of …
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Understanding Unsteady Corner Separation Within Wing-Body Junction Flows
<p>Wing-body junction flows, formed at the interface between a wing and fuselage surface, are a complex, coupled, three-dimensional, turbulent flow field. This thesis focused on the unsteady corner separation that develops at the trailing edge of this wing-body junction under certain conditions. A …
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An experimental study of the relationship between velocity and pressure fluctuations in a wing-body junction
… in the plane of symmetry in front of a wing-body junction at an approach free-stream velocity U<sub>ref</sub>=28.3 m/s and momentum thickness Reynolds number Re<sub>θ</sub>=6900. The cylindrical wing shape was a 3:2 elliptic nose attached to a NACA 0020 tail at maximum thickness. A two component …
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Numerical investigations of flow behavior and energy losses in open channel junctions
Understanding the behavior of combining flows in open-channel junction is of interest in environmental and hydraulic engineering. The complexity of the junction flow problem stems from flow mixing, secondary circulation, post-confluence flow separation, contraction and backwater effects. These …
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An experimental study of a three-dimensional pressure-driven turbulent boundary layer
… boundary layer created by an idealized wing-body junction flow is experimentally studied. The body used is a 3 : 2 elliptical nosed NACA 0020 tailed symmetric profile which has a chord length of 30.5 cm (12 inches), maximum thickness of 7.17 cm (2.824 inches) , height of 22.9 cm (9.016 inches). …
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Numerical Prediction of the Interference Drag of a Streamlined Strut Intersecting a Surface in Transonic Flow
In transonic flow, the aerodynamic interference that occurs on a strut-braced wing airplane, pylons, and other applications is significant. The purpose of this work is to provide relationships to estimate the interference drag of wing-strut, wing-pylon, and wing-body arrangements. Those equations …
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Structure of 2-D and 3-D Turbulent Boundary Layers with Sparsely Distributed Roughness Elements
… distribution, thus studying the response of the flow to a sequence of perturbations; and in Part 3, the distributions were subjected to 3-D turbulent boundary layers, thus examining the effects of streamwise and spanwise pressure gradients on the same perturbed flows as considered in Part 2. The …