R Ma, Z Gao, S Chen, D Li - Physics of Fluids, 2023 - pubs.aip.org
Spanwise wall oscillation is an easily implemented active control scheme. It can delay the transition to turbulent flows in incompressible boundary layers under appropriate control …
K Kundu, UK Sarkar - Physics of Fluids, 2022 - pubs.aip.org
A fully developed laminar flow through semi-elliptic annulus formed between two confocal elliptical ducts, driven by a constant pressure-gradient, has been analyzed. The elliptic …
Understanding how to decrease the friction drag exerted by a fluid on a solid surface is becoming increasingly important to address key societal challenges, such as decreasing the …
This work presents systematical investigations on the skin-friction drag reduction (DR) of turbulent channel flow subjected to spanwise wall oscillation using direct numerical …
A one-dimensional mathematical model is developed for an unsteady incompressible laminar flow in a circular pipe subjected to a rapid change in the flow rate from an initial flow …
Y Bengana, Q Yang, G Tu, Y Hwang - Journal of Fluid Mechanics, 2022 - cambridge.org
A set of several exact coherent states in plane Couette flow is computed under spanwise wall oscillation control, with a range of wall oscillation amplitudes and periods. The exact …
PT Nagy, M Kiss, G Paál - Fluid Dynamics Research, 2022 - iopscience.iop.org
A partial differential equation has usually a regular solution at the initial time if the initial condition is smooth in space, fulfills the governing equations and is compatible with the …
H Zheng, Y Zhengyin - Chinese Journal of Theoretical and …, 2021 - lxxb.cstam.org.cn
As inspired by the flexible characteristics of the feathers of birds, the influence of an anisotropic compliant wall on the spatial evolution of the TS wave in the subsonic boundary …