Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 15, 2018 - October 16, 2018
In the topology optimization of fluid problem, there are many prior studies targeting laminar flow, but due to the complexity of the discussion and the high calculation cost, there is little preceding research on turbulent flow, which accounts for most of the real flow. Therefore, as a fundamental study on topology optimization for turbulent flows, this paper presents the verification of Brinkman model, which is generally used to topology optimization for laminar flow to simplify treatment of walls of flow path. In this study, several flow tubes that are typical examples of structural optimization problems are adopted to compare Brinkman model’s flow and actual turbulent flow. Since it is difficult to describe and analyze turbulence using Navier-Stokes equations, low Reynolds number k-ε model which is a kind of RANS equations is used. The finite element method is applied to solve that governing equations.
