[HTML][HTML] A review on turbulent flow over rough surfaces: Fundamentals and theories
Surface roughness can significantly influence the fluid dynamics and heat transfer in
convective flows by inducing perturbations in the velocity profile which affect surface drag …
convective flows by inducing perturbations in the velocity profile which affect surface drag …
Predicting the drag of rough surfaces
Reliable full-scale prediction of drag due to rough wall-bounded turbulent fluid flow remains
a challenge. Currently, the uncertainty is at least 10%, with consequences, for example, on …
a challenge. Currently, the uncertainty is at least 10%, with consequences, for example, on …
Large-eddy simulation of the atmospheric boundary layer
Over the last 50 years the large-eddy simulation (LES) technique has developed into one of
the most prominent numerical tools used to study transport processes in the atmospheric …
the most prominent numerical tools used to study transport processes in the atmospheric …
[HTML][HTML] Super-resolution reconstruction of turbulent flow fields at various Reynolds numbers based on generative adversarial networks
This study presents a deep learning-based framework to recover high-resolution turbulent
velocity fields from extremely low-resolution data at various Reynolds numbers by utilizing …
velocity fields from extremely low-resolution data at various Reynolds numbers by utilizing …
Prandtl's secondary flows of the second kind. Problems of description, prediction, and simulation
NV Nikitin, NV Popelenskaya, A Stroh - Fluid Dynamics, 2021 - Springer
The occurrence of turbulent pulsations in straight pipes of noncircular cross-section leads to
the situation, when the average velocity field includes not only the longitudinal component …
the situation, when the average velocity field includes not only the longitudinal component …
Reorganisation of turbulence by large and spanwise-varying riblets
We study the flow above non-optimal riblets, specifically large drag-increasing and two-
scale trapezoidal riblets. In order to reach large Reynolds numbers and large scale …
scale trapezoidal riblets. In order to reach large Reynolds numbers and large scale …
The effect of spanwise wavelength of surface heterogeneity on turbulent secondary flows
DD Wangsawijaya, R Baidya, D Chung… - Journal of Fluid …, 2020 - cambridge.org
The effect of spanwise wavelength of surface heterogeneity on turbulent secondary flows Page
1 J. Fluid Mech. (2020), vol. 894, A7. c The Author(s), 2020. Published by Cambridge University …
1 J. Fluid Mech. (2020), vol. 894, A7. c The Author(s), 2020. Published by Cambridge University …
The instantaneous structure of secondary flows in turbulent boundary layers
Secondary flows can develop in turbulent boundary layers that grow over surfaces with
spanwise inhomogeneities. In this article, we demonstrate the formation of secondary flows …
spanwise inhomogeneities. In this article, we demonstrate the formation of secondary flows …
Secondary currents and very-large-scale motions in open-channel flow over streamwise ridges
It is widely acknowledged that streamwise ridges on the bed of open-channel flows generate
secondary currents (SCs). A recent discovery of meandering long streamwise counter …
secondary currents (SCs). A recent discovery of meandering long streamwise counter …
Effects of heterogeneous surface geometry on secondary flows in turbulent boundary layers
T Medjnoun, C Vanderwel… - Journal of Fluid …, 2020 - cambridge.org
The effect of spanwise heterogeneous surface geometry on turbulent boundary layer
secondary flows and on skin friction is investigated experimentally. The surfaces consist of …
secondary flows and on skin friction is investigated experimentally. The surfaces consist of …