FLOW-MEDIATED INTERACTIONS BETWEEN TWO SELF-PROPELLED FLEXIBLE FINS NEAR SIDEWALLS
Young Dal Jeong, Jae Hwa Lee & Sung Goon Park
Journal of Fluid Mechanics, Vol.913, A39, 2021
We investigate the schooling behaviors of two self-propelled flexible fins in the tandem configuration near a single wall (1W) and two parallel walls (2W).
LARGE-EDDY SIMULATIONS OF COMPLEX AERODYNAMIC FLOWS OVER MULTI-ELEMENT ICED AIRFOILS
Young Mo Lee, Jae Hwa Lee, Lawrence Prince Raj, Je Hyun Jo & Rho shin Myong
Aerospace Science and Technology, Vol.109, 106417, 2021
Large-eddy simulations of flows over two types of iced airfoils with three multi-elements are performed to investigate the aerodynamic characteristics and complex interactions between flows genera…
SPACE–TIME FORMATION OF VERY-LARGE-SCALE MOTIONS IN TURBULENT PIPE FLOW
Jae Hwa Lee, Hyung Jin Sung & Ronald J. Adrian
Journal of Fluid Mechanics, Vol.881, pp.1010-1047, 2019
We examine the origin of very-large-scale motions (VLSMs) in fully developed turbulent pipe flow at friction Reynolds number, Reτ = 934, using data from a direct numerical simulation.
WAKE TRANSITIONS OF FLEXIBLE FOILS IN A VISCOUS UNIFORM FLOW
Min Je Kim & Jae Hwa Lee
Physics of Fluids, Vol.31, 111906, 2019
The effects of flexibility on the wake structures of a foil under a heaving motion in a viscous uniform flow are numerically studied using an immersed boundary method.
DIRECT NUMERICAL SIMULATION OF A TURBULENT COUETTE-POISEUILLE FLOW WITH A ROD-ROUGHENED WALL
Young Mo Lee, Jung Hoon Kim & Jae Hwa Lee
Physics of Fluids, Vol.30, 105101, 2018
A direct numerical simulation of a fully developed turbulent Couette-Poiseuille flow with a rod-roughened wall is performed to investigate the impact of the surface roughness on the flow characterist…
SECONDARY FLOWS IN TURBULENT BOUNDARY LAYERS OVER LONGITUDINAL SURFACE ROUGHNESS
Hyeon Gyu Hwang & Jae Hwa Lee
Physical Review Fluids, Vol.3, 014608, 2018
Direct numerical simulations of turbulent boundary layers over longitudinal surface roughness are performed to investigate the impact of the surface roughness on the mean flow characteristics related …