Journal ArticleDOI
Vortex shedding from a turbulent jet in a cross-wind
TLDR
In this paper, the Strouhal numbers for flow past a circular and a blunt jet are in qualitative agreement with those for corresponding solid bodies, provided that the width of the spreading jet some distance from the surface is used rather than the jet exit plane dimension.Abstract:
Measurements in the wake behind turbulent jets exhausting from a solid surface into a cross-wind indicate that vortex shedding occurs as in the case of flow past solid bluff bodies. The Strouhal numbers for flow past a circular and a blunt jet are in qualitative agreement with those for corresponding solid bodies, provided that the width of the spreading jet some distance from the surface is used rather than the jet exit plane dimension.read more
Citations
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Journal ArticleDOI
Vortical structure in the wake of a transverse jet
T. F. Fric,Anatol Roshko +1 more
TL;DR: In this article, structural features resulting from the interaction of a turbulent jet issuing transversely into a uniform stream are described with the help of flow visualization and hot-wire anemometry.
Journal ArticleDOI
An experimental study of round jets in cross-flow
TL;DR: In this article, the structure of round jets in cross-flow was studied using flow visualization techniques and flying-hot-wire measurements, restricted to jet to freestream velocity ratios ranging from 2.0 to 6.0.
Journal ArticleDOI
Experimental investigation of jets in a crossflow
J. Andreopoulos,Wolfgang Rodi +1 more
TL;DR: In this article, measurements of the flow generated by a jet issuing from a circular outlet in a wall into a cross-stream along this wall were performed with a three-sensor hot-wire probe.
Journal ArticleDOI
The near field in the mixing of a round jet with a cross-stream
TL;DR: In the mixing of a jet with a cross-stream, it is found that in the near field, defined as the region of the flow from the jet exit to a distance of a few diameters downstream of this exit, a considerable amount of dynamical adjustment takes place as discussed by the authors.
Journal ArticleDOI
Mixing of multiple jets with a confined subsonic crossflow
TL;DR: In this article, an account of experimental and computational results on the mixing of single, double, and opposed rows of jets characterized by an either isothermal or variable temperature mainstream in a confined subsonic crossflow was given.
References
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Journal ArticleDOI
Experiments on the flow past a circular cylinder at very high Reynolds number
TL;DR: For R > 3.5 × 10^6, definite vortex shedding occurs, with Strouhal number 0.27 as discussed by the authors, while for R > 0.7, the vortex shedding rate becomes constant.
DissertationDOI
On the development of turbulent wakes from vortex streets
TL;DR: In this article, the authors investigated the wake development behind circular cylinders at Reynolds numbers from 40 to 10,000 in a low-speed wind tunnel and found that in the stable range the vortex street has a periodic spanwise structure.
On the drag and shedding frequency of two-dimensional bluff bodies
TL;DR: In this paper, a semi-empirical study of the bluff body problem is presented, where interference elements in the wake close behind a cylinder demonstrate the need for considering that region in any complete theory.
Journal ArticleDOI
On the Wake and Drag of Bluff Bodies
TL;DR: In this article, a modification to Kirchhoff's free streamline introduces the parameter k = √(1-C_ps), which allows arbitrary base pressure and which must depend on the dynamics of the wake.
Journal ArticleDOI
Profiles of the Round Turbulent Jet in A Cross Flow
TL;DR: The shape of a jet issuing normal to a uniform cross wind has been studied experimentally for a large range of jet-to-wind velocity ratios, R, and over a large distance downstream of the source as mentioned in this paper.