A vortex is intuitively recognized as the rotational/swirling motion of fluids, but a rigorous and
universally-accepted definition is still not available. Vorticity tube/filament has been …

Vortex is one of typical structures of the unsteady flow inside the hydroturbines, leading to
significant pressure fluctuation, prominent vibration of the units, and fatigue of turbine …

A vortex is intuitively recognized as the rotational/swirling motion of the fluids. However, an
unambiguous and universally accepted definition for vortex is yet to be achieved in the field …

Turbulence modeling is a critical component in numerical simulations of industrial flows
based on Reynolds-averaged Navier-Stokes (RANS) equations. However, after decades of …

Most of the current Eulerian vortex identification criteria, including the Q criterion and the λ ci
criterion, are exclusively determined by the eigenvalues of the velocity gradient tensor or the …

Rotationally coherent Lagrangian vortices are formed by tubes of deforming fluid elements
that complete equal bulk material rotation relative to the mean rotation of the deforming fluid …

Incompressible Flow The latest edition of the classic introduction to fluid dynamics This
textbook offers a detailed study of fluid dynamics. Equal emphasis is given to physical …

水轮机作为水电能源开发的核心机械装备, 其性能的优劣决定了水电能源的开发利用率.
在现代科技进步的推动下, 水轮机技术也取得了长足发展. 我国水轮机技术的发展经历了引进 …

A small amount of polymer additives can cause substantial reduction in the energy
dissipation and friction loss of turbulent flow. The problem of polymer-induced drag …

Wall-bounded turbulent flows at high Reynolds numbers have become an increasingly
active area of research in recent years. Many challenges remain in theory, scaling, physical …