Stepped spillways are designed to increase the rate of energy dissipation on the chute and to reduce the size of the downstream energy dissipator. It is essential to predict accurately the turbulent dissipation above the steps for large discharges per unit width corresponding to the skimming flow regime. New measurements were conducted in a large facility with a channel slope of 21.8o and a ste...

The views expressed in this paper are those of the authors and do not necessarily reflect the position of the Federal Reserve Board, the Federal Reserve Bank of Philadelphia, or Freddie Mac. We Abstract Depository institutions may use information advantages along dimensions not observed or considered by outside parties to " cream‐skim, " meaning to transfer risk to naïve, uninformed, or unconce...

Three-dimensional (3D) simulations using the smoothed particle hydrodynamics (SPH) method were performed for smooth and stepped spillways with converging walls, in order to evaluate influence of wall deflection step macro-roughness on main non-aerated flow properties. The encompassed a 1V:2H sloping spillway, convergence angles 9.9° 19.3°, discharges corresponding skimming regime, chute. overal...

JEM-EUSO is a mission to study ultrahigh-energy cosmic rays (UHECRs) by measuring the fluorescence light from giant air showers at the altitude of the International Space Station. In the tilted mode, JEM-EUSO will become very sensitive to the Čerenkov light from the earth skimming tau neutrinos at the energy range of 10eV. In this paper we will discuss high-energy tau neutrinos from nearby gamm...

Drag-reducing polymers (DRPs) significantly increase blood flow, tissue perfusion, and tissue oxygenation in various animal models. In rectangular channel microfluidic systems, DRPs were found to significantly reduce the near-wall cell-free layer (CFL) as well as modify traffic of red blood cells (RBC) into microchannel branches. In the current study we further investigated the mechanism by whi...