We present an efficient implementation of the Lattice Boltzmann method (LBM) for the numerical simulation of the propagation of long ocean waves (e.g., tsunamis), based on the Nonlinear Shallow Water (NSW) wave equation. The LBM solution of NSW equations is fully nonlinear and it is assumed that the surface elevation is single-valued (hence, waves do not break or overturn). For the treatment of...

This paper presents a method to simulate the melting and flowing phenomena with different materials in multiple phases. In such a multiphase environment, solid objects are melted because of heating and the melted liquid flows while interacting with the ambient air flow. Our simulation is based on a modified lattice Boltzmann method (LBM), where the fluid dynamics of the air flow and the melted ...

This paper studies the three dimensional (3D) simulation of fluid flows through the ball grid array (BGA) to replicate the real underfill encapsulation process. The effect of different solder bump arrangements of BGA on the flow front, pressure and velocity of the fluid is investigated. The flow front, pressure and velocity for different time intervals are determined and analyzed for potential ...

In the last two decades, the Lattice Boltzmann method (LBM) has emerged as a promising tool for modelling the Navier-Stokes equations and simulating complex fluid flows. LBM is based on microscopic models and mesoscopic kinetic equations. In some perspective, it can be viewed as a finite difference method for solving the Boltzmann transport equation. Moreover the Navier-Stokes equations can be ...

BACKGROUND AND AIMS Nutritional status is a prognostic factor for survival in amyotrophic lateral sclerosis (ALS) patients. We investigated the contribution of some of the components contributing to resting energy expenditure (REE) in order to determine whether potentially higher energy needs should be considered for these patients. METHODS Thirty three ALS patients and 33 age- and gender-mat...

The recently introduced inertial-range IR consistent Smagorinsky model and the classical Smagorinsky model are applied to the large-eddy simulation LES of decaying homogeneous isotropic turbulence based on the lattice Boltzmann method LBM , which is implemented using the 19-velocity D3Q19 lattice model. The objectives of this study are to examine the effectiveness of the LES-LBM technique for s...

OBJECTIVE To determine the relative contribution of the gender difference in body composition, blood hemoglobin concentration, and cardiac dimension and function at rest and exercise of the gender difference in maximal oxygen uptake (O(2)max) in 10- to 12-year-old children. SUBJECTS Thirty-five healthy children (17 girls and 18 boys; mean +/- SD age, 10.5 +/- 0.4 years). EXPERIMENTAL DESIGN...

In this study, computational fluid dynamics (CFD) simulations of fluid-particle motion on flat and textured solid surfaces with homogeneous or heterogeneous wettability are conducted by using a diffuse-interface tracking method [1, 2] for better understanding microscopic multiphase fluid flow phenomena in various scientific and engineering fields. The CFD method employs phase-field model (PFM) ...

The lattice Boltzmann method (LBM) is an innovative and promising approach in computational fluid dynamics. From an algorithmic standpoint it reduces to a regular data parallel procedure and is therefore well-suited to high performance computations. Numerous works report efficient implementations of the LBM for the GPU, but very few mention multi-GPU versions and even fewer GPU cluster implemen...