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The main interest of geometry in the current study is a square cylinder with side lengthD. Square cylinder is accounted as the principal body for the wind harvester. This generic and simple geometry is opted as the baseline case due to its wide application in engineering structures54. However,...
By using a fluid dynamic analogy between a single particle in a tube and a multiparticle suspension previously derived, a relationship for the wall effect on the terminal settling velocity of a single particle in a cylindrical tube is obtained. Unlike previous relationships, this one is valid for...
(u-ug)dA=∫∂VΓ∇ϕdA+∫VSϕdVwhere ρ is the fluid density, u the flow velocity vector, ug the mesh velocity of the moving mesh, Γ the diffusion coefficient, Sϕ the source term of ϕ, ∂V is used to represent the boundary of the control volume V, and A is the ...
Velocity gradient is typically estimated in Particle Image Velocimetry (PIV) by differentiating a measured velocity field, which amplifies noise in the measured velocities. If gradients near a boundary are sought, such noise is usually greater than in bulk fluid, because of small tracer displacement,...
This work involves numerical experiments that were conducted in a turbulent channel flow using direct numerical simulation in conjunction with the tracking of thermal markers released from a single instantaneous line source at the wall of the channel. The simulations were conducted atReτ= 300 and for...
According to our model, the shear wave traveltime in a 120 km thick lithosphere is about 26.7 s (the average S-wave velocity is ~ 4.5 km/s) associated with the 4% anisotropy, then the traveltime delay between the fast and low S-wave is ~ 1.1 s. The average time delay of...
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