Flow visualization in fluid mechanics

1993 ◽  
Vol 64 (1) ◽  
pp. 1-18 ◽  
Author(s):  
Peter Freymuth
2009 ◽  
Author(s):  
Jean Hertzberg ◽  
Alex Sweetman

For the past six years, a course on flow visualization has been offered to mixed teams of graduate and undergraduate engineering and fine arts photography students at the University of Colorado. The course has significant technical content on flow visualization and photographic techniques, and includes some emphasis on documentation and the interpretation of results, particularly with respect to atmospheric dynamics as revealed by clouds. What makes this course unusual is the emphasis on the production of images for aesthetic purposes: for art. While a number of art/science collaborations are growing worldwide, both in professional and academic communities, typically scientists are expected to contribute technical support while artists produce art. A particularly unusual aspect of this course is that all students are expected to demonstrate both aesthetic sensibility and scientific discipline. Another is that students are not constrained to study specific phenomena or use specific techniques; instead, creativity is required. A major outcome from this course is a series of stunning images. In addition, anecdotal evidence suggests that this course has a lasting impact on students’ perception of fluid physics, which can be contrasted to the effect of traditional introductory fluids courses. This raises the question of whether this impact is significant with respect to students’ understanding and appreciation of fluid mechanics, and if so, what aspect of the flow visualization course is most important? A survey instrument is being designed to quantify whether students’ awareness of fluid mechanics in the world around them changes when they take these courses and if students’ attitudes towards fluids is changed when they take these courses.


2020 ◽  
Author(s):  
Ricardo Medina ◽  
Ashkan Motamedi ◽  
Murat Okcay ◽  
B. Oztekin ◽  
Gustavo Menezes ◽  
...  

1982 ◽  
Vol 104 (4) ◽  
pp. 513-517 ◽  
Author(s):  
M. M. Zdravkovich

One aspect of the synchronization phenomenon, which has attracted little attention so far, is the timing of vortex shedding in relation to the displacement of a bluff body. Systematic analysis of flow visualization within the synchronization range revealed that the jump in fluctuating forces had a simple fluid mechanics origin. The oscillating cylinder imposed not only its frequency to the wake behind it but also the timing of the vortex shedding. In the lower region of the synchronization range, the vortex formed on one side of the cylinder was shed when the cylinder was near to the maximum amplitude on the opposite side. This timing changed suddenly in the upper synchronization range where the vortex of the same circulation as before was shed when the cylinder reached the maximum amplitude on the same side.


Volume 1 ◽  
2004 ◽  
Author(s):  
Alfred D. Parr

This paper describes a laboratory set-up that introduces undergraduate fluid mechanics student to the concept of two-dimensional flow at bridges. The experiment involves mostly flow visualization using dye injection. The students are asked to identify angles of attack through the bridge opening, areas of ineffective flow and location with dominant eddies.


2010 ◽  
Vol 21 (1) ◽  
pp. 91 ◽  
Author(s):  
Ivan Marusic ◽  
Alexander J. Smits

Tony Perry was one of Australia's most outstanding researchers in fluid mechanics, particularly in the study of turbulent fluid motion. He was a gifted experimentalist who advanced the techniques of hot-wire anemometry and quantitative flow visualization to make measurements of unparalleled accuracy to answer fundamental scaling questions. He also made seminal theoretical contributions to the physical modelling of wall-bounded turbulence, and pioneered flow topology approaches for the classification and description of fluid motions. He was a gifted lecturer, devoted supervisor to twenty PhD students, and a passionate and enthusiastic influence on numerous colleagues around the world.


2018 ◽  
Author(s):  
Gregory Falkovich
Keyword(s):  

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