Analytical Model of Hydraulic Geometry Functions in Meander River [PDF]
Regime and hydraulic geometry are two of the most important proposed models over the past century in the related disciplines of river engineering and fluvial geomorphology.
Mojgan Shahosainy +2 more
doaj +1 more source
New Insights into Flow for a Low-Bypass-Ratio Transonic Fan with Optimized Rotor
In this paper, a three-dimensional aerodynamics optimization system is built and applied to optimize a rotor blade to balance the conflicts between stall margin, total pressure ratio, adiabatic efficiency, and mass flow rate for the high-loading and ...
Mingjun Liu +6 more
doaj +1 more source
Nonlocal Granular Rheology: Role of Pressure and Anisotropy
We probe the secondary rheology of granular media, by imposing a main flow and immersing a vane-shaped probe into the slowly flowing granulate. The secondary rheology is then the relation between the exerted torque T and rotation rate \omega of our probe.
van Hecke, Martin, Wandersman, Elie
core +2 more sources
Practical design considerations for secondary air injection in wood-burning cookstoves: An experimental study [PDF]
Billions of households worldwide cook using biomass fires and suffer from the toxic smoke emitted into their homes. Laboratory studies of wood-burning cookstoves demonstrate that secondary air injection can greatly reduce the emission of harmful air ...
Caubel, JJ +3 more
core +1 more source
Influence of global rotation and Reynolds number on the large-scale features of a turbulent Taylor–Couette flow [PDF]
We experimentally study the turbulent flow between two coaxial and independently rotating cylinders. We determined the scaling of the torque with Reynolds numbers at various angular velocity ratios Rotation numbers and the behavior of the wall shear ...
DELFOS, René +2 more
core +6 more sources
Viscoelastic Effects in Multilayer Polymer Extrusion
The effect of viscoelasticity on multilayer polymer extrusion is discussed. In these coextrusion processes predetermined patterns are created with a remarkable breadth of complexity even in geometrically simple dies via elastic rearrangements caused by ...
Anderson Patrick D. +2 more
doaj +1 more source
A transonic centrifugal compressor with a ruled-impeller (that is, impeller blades are generated by a set of points swept by a moving straight line) was used as the baseline, and the impeller blades were redesigned using non-ruled surfaces (referred to ...
Zi-liang Li +3 more
doaj +1 more source
Controlling secondary flow in Taylor-Couette turbulence through spanwise-varying roughness [PDF]
Highly turbulent Taylor-Couette flow with spanwise-varying roughness is investigated experimentally and numerically (direct numerical simulations (DNS) with an immersed boundary method (IBM)) to determine the effects of the spacing and axial width $s$ of
Bakhuis, Dennis +9 more
core +3 more sources
Influence of the enclosed fluid on the flow over a microstructured surface in the Cassie state
Analytical expressions for the flow field as well as for the effective slip length of a shear flow over a surface with periodic rectangular grooves are derived.
Baier, Tobias +2 more
core +1 more source
Three-Dimensional Navier-Stokes Simulation of Space Shuttle Main Propulsion 17-inch Disconnect Valves [PDF]
A steady incompressible three-dimensional viscous flow analysis has been conducted for the Space Shuttle external tank/orbiter propellant feed line disconnect flapper valves with upstream elbows.
Kandula, M., Pearce, D. G.
core +2 more sources

