Abstract The transient flow of a circular liquid jet impinging on horizontal disk, and the hydraulic jump formation, are examined theoretically numerically. interplay between inertia gravity is particularly emphasised. governed by thin-film equations, which solved along with force balance across jump. unsteadiness caused linearly accelerating from an initial to final steady state. To validate p...

Usually, vertical drains are widely used to improve land reclamation and construction of urban planning, transport road construction, agriculture. Vertical drainage systems that use pumped wells, open dug or tube wells. There calculation methods based on pumping curves the filtration equation hydraulic drainage. In proposed system, jet apparatus is in systems. Jet pumps designed such a way they...

While flame propagation through obstacles is often associated with turbulence and/or shocks, Bychkov et al. [V. Bychkov et al., Phys. Rev. Lett. 101, 164501 (2008)10.1103/PhysRevLett.101.164501] have revealed a shockless, conceptually laminar mechanism of extremely fast flame acceleration in semiopen obstructed pipes (one end of a pipe is closed; a flame is ignited at the closed end and propaga...