Numerical Analysis of the Diffusion Process of Intake Mixture in Dual-Intake Valve Engines.

Effect of Material and Thickness about Tail Fins on Propulsive Performance of a Small Fish Robot

“…Here, it is assumed that the fluid is an incompressible fluid and the flow is laminar. The GTT code, we used, is based on the finite volume method with a boundary-fitted structured grid [8]. The physical space to be analyzed is divided into small control volumes of arbitrary hexahedrons, and each control volume is converted into a cubic control volume in the calculation space by general curvilinear coordinate transformation.…”

High-resolution in-situ LDV monitoring system for measuring velocity distribution in blood vessel

“…The equations [Eq. (5)] with dependent variables are solved using the generalized tank and tube (GTT) method [37], which is based on the finite volume method. The pressure correction equation is calculated using the computational fluid dynamic technique with the SIMPLER method [38].…”

Investigation of the Shape of the Anode Flow Channel in a Direct Ethanol Polymer Electrolyte Fuel Cell -Optimization of the Sharp Turn Corner Shape by Numerical Flow Analysis with a Genetic Algorithm-

“…As a method to improve the performance, it is necessary to investigate the flow pattern of fuel aqueous solution in the anode flow channel with many sharp turn corners in the fuel cell, and the flow channel shape needs to be improved. Therefore, in this study, in order to clarify the flow pattern of the ethanol aqueous solution (the concentration of ethanol is about 3%) in a flow channel with sharp turn corners, firstly the velocity distribution of the water flow in a flow channel with a corner (micro-channel of 1 mm in width) was numerically analyzed using the authors' numerical analysis code of thermo-fluid (GTT code (3) ), and secondly the calculated results were verified by velocity measurement with a line LDV system (4) . For reducing the pressure loss in consideration of the suppression of flow stagnation in the channel as much as possible, it was attempted to optimize the sharp turn corner shape by three-dimensional numerical flow analysis with a genetic algorithm (GA) (5) (6) .…”