D3Q27 · CLBM · CUDA · AMR
Cumulant LBM ROV Solver
GPU-accelerated cumulant lattice Boltzmann solver with adaptive mesh refinement and interpolated bounce-back boundaries, built for simulation of turbulent channel flows with high Reynolds numbers.
Bio
I’m an Assistant Professor at The University of Osaka. My research combines multibody dynamics, computational fluid dynamics (CFD) and high-performance numerical methods to tackle dynamical problems in ocean engineering. At Marine Hydro-Science and Engineering Lab, we have a diverse team studying the dynamics of marine systems, including tethered subsea vehicles, riserless drill strings, dynamic power cables and moorings. My particular focus is on developing efficient simulation techniques for large-scale, high-fidelity simulations of coupled dynamics of interconnected rigid–flexible bodies and their interactions with the surrounding fluid. I'm also eager to extend these approaches beyond the ocean to numerical modeling of bio-inspired morphing wings, tethered airborne wind energy systems, and electric solar wind sails (E-sails).
Updates & News
Recent updates and news about the research group and its activities.
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Mini lecture on ``Simulation of turbulent channel flows using a GPU-accelerated cumulant lattice Boltzmann method"
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Chairing “Modeling, Formalisms, and Computational Methods” technical session at the ACMD2026 conference
Latest Publications
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An efficient ANCF framework for large-scale simulation of offshore flexible slender structures: CPU–GPU heterogeneous computing
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Genetic Algorithm optimization of lazy wave dynamic cables via multibody formalism and element-level parallelism on GPU
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Understanding the Magnus effect and fluid-structure interaction of a rotating pipe in subcritical flow
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On rotating drill pipe dynamics induced by stick–slip behavior
Projects
ANCF · Natural coordinates· Contact Mechanics
ANCF Cable–Vehicle Coupling
Coupled dynamics of ROV, its tether in application to offshore wind farm inspection and maintenance.
Supervising
ANCF, drill pipe dynamics, cumulant LBM
Supervising international students at our lab on their research projects and guiding them through the fundamentals of computational fluid dynamics and multibody dynamics in English, Japanese and Burmese.
CFD Results
Flow visualisations from the cumulant lattice Boltzmann solver.
Hobbies
I go hiking frequently. I climbed Mt. Fuji in 2018, which was a thrilling and memorable experience. I've hiked quite a few trails through mountains (Mt. Horai, Mt. Inari, Mt. Takao, Mt. Rokko, Mt. Ponpon, Nunobiki Falls) located in the Shiga and Hyogo regions. I recommend Mt.Horai and Mt. Inari for their seceneic routs and breath-taking views of Biwako Lake and Kyoto city.
Contact
Reach me at tzhtun@naoe.eng.osaka-u.ac.jp