12 papers
Adaptive Time Windows for Discrete Adjoint Topology Optimization of Unsteady Flows
Zongyuan Liu, Kentaro Yaji, Musaddiq Al Ali +1
Rather than prescribing an evaluation interval a priori, the proposed framework characterizes each evolving unsteady flow using a sequence of time windows. A consecutive-window con…
4D Topology optimization of moving rigid bodies in fluid flows
Yuta Tanabe, Kentaro Yaji, Kuniharu Ushijima
This study applies , a framework for simultaneously optimizing the morphology and motion of a system, to a rigid body that induces fluid flow. Th…
Topology optimization of two-fluid turbulent heat exchangers: A Darcy flow-based multifidelity approach
Hiroki Kawabe, Kaito Ohtani, Kentaro Yaji +2
This paper presents a topology optimization method for designing two-fluid heat exchangers under turbulent conditions using a Darcy flow-based low-fidelity (LF) model. The LF model…
Distortion-minimized de-homogenization for optimization of cell-size distribution in TPMS structures
Hiroki Kawabe, Kaito Ohtani, Yusibo Yang +2
This paper presents a homogenized topology optimization (TO) method for spatially optimizing cell-size distribution of triply-periodic minimal surface (TPMS) structures, with high…
Topology optimization of passively moving rigid bodies in unsteady flows
Yuta Tanabe, Kentaro Yaji, Kuniharu Ushijima
This study proposes the topology optimization method for moving rigid bodies subjected to forces from fluid flow, such as sails and turbines, with an unsteady time-dependent formul…
Homogenization-based optimization of wall thickness distribution for TPMS two-fluid heat exchangers
Kaito Ohtani, Hiroki Kawabe, Kentaro Yaji +2
Triply Periodic Minimal Surface (TPMS) structures are attracting growing attention as promising geometries for next-generation high-performance heat exchangers (HXs), due to their…