Tianjun Han
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View article: Wavenumber affects the lift of ray-inspired fins near a substrate
Wavenumber affects the lift of ray-inspired fins near a substrate Open
Rays and skates tend to have different fin kinematics depending on their proximity to a ground plane such as the sea-floor. Near the ground, rays tend to be more undulatory (high wavenumber), while far from the ground, rays tend to be more…
View article: Tailoring formations of self-organising hydrofoil schools towards high-efficiency
Tailoring formations of self-organising hydrofoil schools towards high-efficiency Open
We present new unconstrained simulations and constrained experiments of a pair of pitching hydrofoils in a leader–follower in-line arrangement. Free-swimming simulations with matched pitching amplitudes show self-organisation into stable f…
View article: Fluid-solid coupled crack propagation simulation of concrete microstructure
Fluid-solid coupled crack propagation simulation of concrete microstructure Open
View article: Tailoring formations of self-organizing hydrofoil schools towards high-efficiency
Tailoring formations of self-organizing hydrofoil schools towards high-efficiency Open
We present new unconstrained simulations and constrained experiments of a pair of pitching hydrofoils in a leader-follower in-line arrangement. Free-swimming simulations of foils with $matched$ pitching amplitudes show self-organization in…
View article: Revealing the mechanism and scaling laws behind equilibrium altitudes of near-ground pitching hydrofoils
Revealing the mechanism and scaling laws behind equilibrium altitudes of near-ground pitching hydrofoils Open
A classic lift decomposition (von Kármán & Sears 1938) is conducted on potential flow simulations of a near-ground pitching hydrofoil. It is discovered that previously observed stable and unstable equilibrium altitudes are generated by a b…
View article: Critical appraisal of international guidelines for the prevention and treatment of pregnancy-associated venous thromboembolism: a systematic review
Critical appraisal of international guidelines for the prevention and treatment of pregnancy-associated venous thromboembolism: a systematic review Open
In summary, the quality of pregnancy-associated VTE guidelines varied widely, especially in Rigor of development and Editorial independence. Recommendations were inconsistent both in prevention and treatment across guidelines. Increased ef…