A frequency-wavenumber-domain formulation is presented in this paper for calculation of the Green's functions and wave propagation modes in a stratified fluid body underlain by a layered viscoelastic soil medium. The Green's functions define the solid and fluid displacements and fluid pressures due to uniform disk loads acting in either the soil or fluid media. The solution is in the frequency ...

Animal momentum and heat transfer analysis has historically used direct animal measurements or approximations to calculate drag and heat transfer coefficients. Research can now use modern 3D rendering and computational fluid dynamics software to simulate animal-fluid interactions. Key questions are the level of agreement between simulations and experiments and how superior they are to classical...

this study investigated the performance and aeroelastic characteristics of a wind turbine blade based on strongly coupled approach (two-way fluid structure interaction) to simulate the transient fsi1 responses of hawt2. aerodynamic response was obtained by 3d cfd-urans approach and structural response was obtained by 3d finite element method. aeroelastic responses of the blade were obtained by ...

The plasma-solid interaction has been generally studied by experimental, theoretical and computational methods. The increasing performance of computers allows to introduce new and more powerful computational methods. However, fully three-dimensional particle simulations are still extremely demanding and therefore usually restricted to supercomputers, etc. To overcome this difficulties, more sop...

The non-powered separator is one of the key equipment in dry sand production line, which responsible for separation coarse and fine materials. In this paper, based on turbulence Standard Model, air powder three-phase fluid model simplified to gas-solid-solid flow, 3D was built. process simulated by using Fluent software. It found that larger volume control valve blade angle is, more removed, ca...

Over the past decade a growing number of high resolution, three-dimensional, X-ray computed tomography images of multiphase porous media systems have become available, as have the number of algorithms to analyze both the pore space and the fluid partitioning imaged within the voids. Here we consider the measurement of fluid-fluid and fluid-solid surfaces at residual fluid conditions in a Berea ...

Fluidized beds have been widely used in power generation and in the chemical, biochemical, and petroleum industries. The 3D simulation of commercial scale fluidized beds has been computationally impractical due to the required memory and processor speeds. However, in this study, 3D Computational Fluid Dynamics simulation of a gas-solid bubbling fluidized bed is performed to investigate the effe...

We present a meshless simulation method for multiphase fluid-particle systems using Smoothed Particle Hydrodynamics (SPH) and the Discrete Element Method (DEM). Rather than fully resolving the interstitial fluid, which is often infeasible, we use an unresolved fluid model based on the locally averaged Navier Stokes equations. A variable-h SPH formulation is used to calculate the fluid phase, wh...

This paper deals with the reflection and transmission of elastic waves from imperfect interface separating a micropolar elastic solid half-space and a fluid saturated porous solid half-space. Longitudinal and transverse waves impinge obliquely at the interface. Amplitude ratios of various reflected and transmitted waves are obtained and computed numerically for a specific model and results obta...