Abstract

The work presented in this thesis documents the simulation of wave induced forces on semi submerged horizontal cylinders in OpenFOAM, utilizing the blending method for generation and damping of waves. The blending method is not included with OpenFOAM and thus required development before it could be employed. Both a linear Airy wave model and a fifth order stokes wave model are implemented. The ...

Due to its unique environmental and geological traits, Poyang Lake Nature Reserve in China was chosen for studying the characteristics of a Potamogeton community. The results were as follows: (1) two emergent and four submerged macrophytes were identified in the Potamogeton malaianus community, in which four growth forms (herbids, magnopotamids, parvopotamids, vallisneriids) were classified. Po...

The characteristics of submerged flow below vertical gate with sill upstream of horizontal diverging channel reach are analyzed based on experimental investigation. The experimental program is conducted in a laboratory flume with 10 cm wide, 31 cm deep and 3.0 m long. A diverging channel reach with fixed length and constant divergence angle is used. Polygonal sills with constant height, constan...

The placement of dental implants in the anterior maxilla is a challenge for clinicians because of patients’ exacting esthetic demands and difficult pre-existing anatomy. This article presents anatomic and surgical considerations for these demanding indications for implant therapy. First, potential causes of esthetic implant failures are reviewed, discussing anatomic factors such as horizontal o...

The flow field, bubble distribution and solidified shell in slab mold are numerically simulated with large eddy simulation (LES) under different electromagnetic braking (EMBr) conditions, assisted high-temperature quantitative velocity measurement. calculated velocities on the surface good agreement measured values of industrial experiment at high temperature rod deflection method EMBr conditio...

This paper studies the interaction of two droplets splashing on a stationary film. A source term is included in large-density-ratio pseudopotential lattice Boltzmann method to achieve tuneable surface tension. model offers excellent numerical accuracy and stability for droplet impacts liquid films. The influence Reynolds number, Weber film thickness, horizontal/vertical distance between crown g...