By M. Samimy, K. S. Breuer, L. G. Leal, P. H. Steen
The visualization of fluid movement has performed a tremendous function within the improvement of fluid dynamics and its functions, from the evolution of flight to monitoring climate, and figuring out the circulation of blood. The Fluid Dynamics department of the yank actual Society sponsors an annual pageant for awesome photos of fluid circulate. This quantity contains a collection of winners from 1985 to the current. each one snapshot is observed via a few explanatory textual content, making the amount a huge acquisition for an individual interested by fluid move study.
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Extra info for A Gallery of Fluid Motion
Williamson, “Turbulence in the wake of a delta wing,” in Advances in Turbulence VI, (ed. S. Gavrilakis, L. Machiels and P. A. Monkewitz), Kluwer, 187 (1996). 3 S. C. Crowe, “Stability theory for a pair of trailing vortices,” AIAAJ. 8, 2172 (1970). A Gallery of Fluid Motion, ed. M. Samimy et al. Published by Cambridge University Press. © Cambridge University Press, 2003. Vortices 19 Figure 1 Model study (end view). Figure 2 Model study (cross-sectional view). Aircraft trailing vortices and downwash phenomenon Hiroshi Higuchi Syracuse University A simple water channel experiment shows the phenomenon of tip vortices and downwash similar to that behind an aircraft despite large diﬀerences in scaling parameters.
The composition was typically 94% tap water, 5% glycerine, and 1% liquid soap. Lighting from an overhead ﬂuorescent lamp yields shadowgraph images of the ﬂexural mode patterns when the ﬁlm is relatively thick as in Fig. 1. As the ﬁlm thins by evaporation, vortex motions are observed through colored fringe interference patterns as in Fig. 2. Figure 2 Thin ﬁlm interferences fringes. Many of the mode patterns are spatially stationary. However, the pattern in 1(c) pulsated and the pattern in 1(d) oscillated as a whole chaotically, back and forth in the azimuthal direction.
M. Weislogel NASA Lewis Research Center and S. Lichter Northwestern University A qualitative study of the bursting of water balloons in a simulated low-gravity environment was conducted aboard NASA Lewis’s DC-9 aircraft. Following rupture by a syringe needle, the balloon retracts tangent to the water surface leaving a smooth surface near the puncture location, Fig. 1. Asymmetries soon develop as the membrane rips apart, ejecting a directional spray from the surface. When the balloon parts from the drop entirely, it causes a large deformation of the remaining liquid mass leading to signiﬁcantly underdamped oscillations which persist for the duration of the simulation.