What is it about?
Flow over a bluff body creates a Von Karnman street. The intriguing aspect is the shedded vortices arrange themselves and led to the shear layer in the far downstream and result into another vortex street called secondary vortex street. In this study, we analyzed what is the physical mechanism led to this and how this frequency related to primitive variables like pressure, temperature and velocity
Photo by Syed Hussaini on Unsplash
Why is it important?
Flow over bluff body is canonical study which has varied applications in the flow over tall buildings, heat exchangers and many complicated flows can be modeled as canonical flows. For example, jets in cross flow can be modeled as a flow over a small vertical cylinders, movement of the micro organisms (spherical in shape) is similar to flow over a cylinder in 2D
Read the Original
This page is a summary of: On the development of low frequency structures in near and far laminar wakes, Physics of Fluids, February 2019, American Institute of Physics, DOI: 10.1063/1.5081050.
You can read the full text:
The following have contributed to this page