Recent advancements in fluid dynamics: drag reduction, lift generation, computational fluid dynamics, turbulence modelling, and multiphase flow
FZ Wang, IL Animasaun, T Muhammad… - Arabian Journal for …, 2024 - Springer
By improving the understanding of fluid behaviour and allowing the development of cutting-
edge technologies that enhance fluid-related processes in various sectors, advances in fluid …
edge technologies that enhance fluid-related processes in various sectors, advances in fluid …
Turbulent flow around a square cylinder at Reynolds number 22,000: A DNS study
The turbulent flow around a square cylinder at Reynolds number 22, 000 (based on the
cylinder diameter and the inflow velocity) is studied by means of direct numerical simulation …
cylinder diameter and the inflow velocity) is studied by means of direct numerical simulation …
Turbulence and secondary motions in square duct flow
We study turbulent flows in pressure-driven ducts with square cross-section through direct
numerical simulation in a wide enough range of Reynolds number to reach flow conditions …
numerical simulation in a wide enough range of Reynolds number to reach flow conditions …
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 …
[HTML][HTML] High-fidelity simulations in complex geometries: Towards better flow understanding and development of turbulence models
R Vinuesa - Results in Engineering, 2021 - Elsevier
The present review shows a summary of current trends in high-fidelity simulations of
turbulent flows in moderately complex geometries. These trends are put in the historical …
turbulent flows in moderately complex geometries. These trends are put in the historical …
Secondary flow in turbulent ducts with increasing aspect ratio
Direct numerical simulations of turbulent duct flows with aspect ratios 1, 3, 5, 7, 10, and 14.4
at a center-plane friction Reynolds number Re τ, c≃ 180, and aspect ratios 1 and 3 at Re τ …
at a center-plane friction Reynolds number Re τ, c≃ 180, and aspect ratios 1 and 3 at Re τ …
An invariances-preserving vector basis neural network for the closure of Reynolds-averaged Navier–Stokes equations by the divergence of the Reynolds stress tensor
S Berrone, D Oberto - Physics of Fluids, 2022 - pubs.aip.org
In the present paper, a new data-driven model is proposed to close and increase accuracy
of Reynolds-averaged Navier–Stokes equations. Among the variety of turbulent quantities, it …
of Reynolds-averaged Navier–Stokes equations. Among the variety of turbulent quantities, it …
[HTML][HTML] Characterization of the secondary flow in hexagonal ducts
In this work we report the results of DNSs and LESs of the turbulent flow through hexagonal
ducts at friction Reynolds numbers based on centerplane wall shear and duct half-height Re …
ducts at friction Reynolds numbers based on centerplane wall shear and duct half-height Re …
Three-dimensional wake transition of rectangular cylinders and temporal prediction of flow patterns based on a machine learning algorithm
A Mashhadi, A Sohankar, MM Moradmand - Physics of Fluids, 2024 - pubs.aip.org
This study investigates the three-dimensional (3D) wake transition in unconfined flows over
rectangular cylinders using direct numerical simulation (DNS). Two different cross-sectional …
rectangular cylinders using direct numerical simulation (DNS). Two different cross-sectional …
Laminar to turbulent transition in a finite length square duct subjected to inlet disturbance
Laminar to turbulent flow transition in a finite length square duct has been carried out by
imposing novel spatiotemporal finite amplitude inlet disturbance on the laminar flow. The …
imposing novel spatiotemporal finite amplitude inlet disturbance on the laminar flow. The …