79 citations · 397 across the 12 of their papers we have counts for
12 papers
Reconstruction of 4D Mitral Regurgitation Hemodynamics from Sparse Planar Data using Deep Operator Networks with Test-Time Adaptation
Jakob Marcel Hoffmann, Yosuke Hasegawa, Alexander Stroh
Quantifying mitral regurgitation severity remains limited by the assumptions of clinical flow convergence methods, while high-fidelity simulation and volumetric velocimetry are too…
Multi-objective optimization of actuation waveform for high-precision drop-on-demand inkjet printing
Hanzhi Wang, Yosuke Hasegawa
Drop-on-demand (DOD) inkjet printing has been considered as one of promising technologies for the fabrication of advanced functional materials. For a DOD printer, high-precision di…
Reinforcement Learning of Control Strategies for Reducing Skin Friction Drag in a Fully Developed Channel Flow
Takahiro Sonoda, Zhuchen Liu, Toshitaka Itoh +1
Reinforcement learning is applied to the development of control strategies in order to reduce skin friction drag in a fully developed turbulent channel flow at a low Reynolds numbe…
Optimization of a Moving Sensor Trajectory for Observing a Point Scalar Source in Turbulent Flow
Constantinos F. Panagiotou, Davide Cerizza, Tamer A. Zaki +1
We propose a strategy for optimizing a sensor trajectory in order to estimate the time dependence of a localized scalar source in turbulent channel flow. The approach leverages the…
Multiscale Parareal Algorithm for Long-Time Mesoscopic Simulations of Microvascular Blood Flow in Zebrafish
Ansel Blumers, Minglang Yin, Hiroyuki Nakajima +3
Various biological processes such as transport of oxygen and nutrients, thrombus formation, vascular angiogenesis and remodeling are related to cellular/subcellular level biologica…
Global energy fluxes in fully-developed turbulent channels with flow control
Davide Gatti, Andrea Cimarelli, Yosuke Hasegawa +2
This paper addresses the integral energy fluxes in natural and controlled turbulent channel flows, where active skin-friction drag reduction techniques allow a more efficient use o…
Global effect of local skin friction drag reduction in spatially developing turbulent boundary layer
A. Stroh, Y. Hasegawa, P. Schlatter +1
A numerical investigation of two locally applied drag reducing control schemes is carried out in the configuration of a spatially developing turbulent boundary layer (TBL). One con…
Does the choice of the forcing term affect flow statistics in DNS of turbulent channel flow?
Maurizio Quadrio, Bettina Frohnapfel, Yosuke Hasegawa
We seek possible statistical consequences of the way a forcing term is added to the Navier--Stokes equations in the Direct Numerical Simulation (DNS) of incompressible channel flow…
Numerical simulation of turbulent duct flows with constant power input
Yosuke Hasegawa, Maurizio Quadrio, Bettina Frohnapfel
The numerical simulation of a flow through a duct requires an externally specified forcing that makes the fluid flow against viscous friction. To this aim, it is customary to enfor…
Prediction of turbulence control for arbitrary periodic spanwise wall movement
Andrea Cimarelli, Bettina Frohnapfel, Yosuke Hasegawa +2
In order to generalize the well-known spanwise-oscillating-wall technique for drag reduction, non-sinusoidal oscillations of a solid wall are considered as a means to alter the ski…
Money versus Time: Evaluation of Flow Control in Terms of Energy Consumption and Convenience
Bettina Frohnapfel, Yosuke Hasegawa, Maurizio Quadrio
Flow control with the goal of reducing the skin friction drag on the fluid-solid interface is an active fundamental research area, motivated by its potential for significant energy…
Changes in turbulent dissipation in a channel flow with oscillating walls
Pierre Ricco, Claudio Ottonelli, Yosuke Hasegawa +1
Harmonic oscillations of the walls of a turbulent plane channel flow are studied by direct numerical simulations to improve our understanding of the physical mechanism for skin-fri…