Flow structure around and heat transfer from cylinders modified from square to circular

F Zafar, MM Alam - Physics of Fluids, 2019 - pubs.aip.org
This work aims at numerically investigating the influence of corner modification on the flow
structure around and heat transfer from a square cylinder at a Reynolds number Re= 150 …

Machine learning-aided design optimization of a mechanical micromixer

FJ Granados-Ortiz, J Ortega-Casanova - Physics of Fluids, 2021 - pubs.aip.org
In real-life mechanical engineering applications, it is often complex to achieve an optimal
multi-objective design, because of the costs related to fabrication and test of different …

Control of vortex-induced vibration of an elastically mounted cylinder with a pair of porous rods

J Chen, J Wu - Physics of Fluids, 2022 - pubs.aip.org
In this work, the control of vortex-induced vibration (VIV) of an elastically mounted cylinder
with a pair of porous rods is numerically investigated at a Reynolds number of 150. To …

A further investigation on the data assimilation-based small-scale reconstruction of turbulence

Y Wang, Z Yuan, J Wang - Physics of Fluids, 2023 - pubs.aip.org
Existing works have shown that the small-scale errors of turbulence can be completely
eliminated through data assimilation (DA), provided that all the large-scale Fourier modes …

Machine learning for adjoint vector in aerodynamic shape optimization

M Xu, S Song, X Sun, W Chen, W Zhang - Acta Mechanica Sinica, 2021 - Springer
Adjoint method is widely used in aerodynamic design because only once solution of flow
field is required for it to obtain the gradients of all design variables. However, the …

Temporally sparse data assimilation for the small-scale reconstruction of turbulence

Y Wang, Z Yuan, C Xie, J Wang - Physics of Fluids, 2022 - pubs.aip.org
Previous works have shown that the small-scale information of incompressible
homogeneous isotropic turbulence is fully recoverable as long as sufficient large-scale …

Optimal design of an autonomous underwater helicopter's shape based on combinatorial optimization strategy

Q Wen, R Feng, X An, Y Chen, H Huang - Ocean Engineering, 2022 - Elsevier
In this study, the shape of the autonomous underwater helicopter (AUH) was optimized. AUH
is a new type of disc autonomous underwater vehicle with good maneuverability and …

Three-dimensional shape optimization of a submerged body under wave diffraction

C Lu, J Liu, A Guo - Physics of Fluids, 2023 - pubs.aip.org
This study explores the use of shape optimization to reduce wave forces on a submerged
floating body subjected to wave diffraction. To this end, gradient-based shape optimization is …

Vortex-induced vibrations of flexible cylinders predicted by wake oscillator model with random components of mean drag coefficient and lift coefficient

YL Feng, DY Chen, SW Li, Q Xiao, W Li - Ocean Engineering, 2022 - Elsevier
In the present study, vortex-induced vibrations in both In-Line and Cross-Flow directions of
long flexible cylinders within a uniform flow are predicted by a modified wake oscillator …

Passive control of cylinder aeolian tone by surface protrusions at low Reynolds number

K Kusano - Physics of Fluids, 2023 - pubs.aip.org
Aerodynamic noise control is important for various engineering applications, including
automobiles. To develop effective control methods for the flow and sound of bluff bodies …