Mechanisms of wake asymmetry and secondary structures behind low aspect-ratio wall-mounted prisms

S Goswami, A Hemmati - Journal of Fluid Mechanics, 2022 - cambridge.org
The wake of a wall-mounted finite prism is numerically studied and characterized with an
aspect ratio (height-to-width) of) that interact with the detaching side shear layers. Alternate …

The unsteady wake transition behind a wall-mounted large-depth-ratio prism

A Zargar, A Tarokh, A Hemmati - Journal of Fluid Mechanics, 2022 - cambridge.org
The wake of a long rectangular wall-mounted prism is investigated at Reynolds numbers of,
horseshoe vortices transformed to vortex loops. There were hairpin-like structures formed on …

On the wake of a large depth ratio wall-mounted prism at a normal incident angle

A Zargar, S Goswami, A Hemmati - Journal of Wind Engineering and …, 2022 - Elsevier
The wake characteristics of a large depth-ratio (depth-to-height) prism at the incident angle
of 90° is numerically examined at Reynolds number of 250. An arc type, symmetric vortex …

[HTML][HTML] The steady wake of a wall-mounted rectangular prism with a large-depth-ratio at low Reynolds numbers

A Zargar, A Tarokh, A Hemmati - Energies, 2021 - mdpi.com
The wakes of wall-mounted small (square) and large (long) depth-ratio rectangular prisms
are numerically studied at Reynolds numbers of 50–250. The large depth-ratio significantly …

Direct numerical simulation of laminar boundary layer interaction with a wall-mounted circular cylinder at low-Reynolds number

E Asgari, M Saeedi - Physics of Fluids, 2024 - pubs.aip.org
In our current study, we employ direct numerical simulation to investigate the interaction
between a laminar boundary layer flow and a wall-mounted circular cylinder with an aspect …

Mean wake evolution behind low aspect-ratio wall-mounted finite prisms

S Goswami, A Hemmati - International Journal of Heat and Fluid Flow, 2023 - Elsevier
The evolution in the mean wake of wall-mounted prisms with varying depth-ratio (length-to-
width) between 0.016 and 4 is examined numerically over a range of Reynolds numbers …

Wake of elongated low-rise building at oblique incidences

F Wang, KM Lam - Atmosphere, 2021 - mdpi.com
We investigated the turbulent wake of an elongated low-rise building at oblique wind
incidence via wind tunnel experiments and numerical simulations. The deflection …

Helical Structures in the Wake of Long Wall-Mounted Prisms at High Incident Angles

A Zargar, A Hemmati - Progress in Turbulence IX: Proceedings of the iTi …, 2021 - Springer
The coherent wake structures behind a rectangular prism at different incidence angles are
numerically studied at Re= 250 R e= 250. The results indicated that changing the incidence …