404 工学的設計のための複雑形状製品の流体解析法の研究(計算力学と数値シミュレーション,オーガナイズドセッション)

概要

論文の詳細を見る
The role of numerical simulation in the design process is changing from confirming the results of the design to designing the function of the product. However, designing more complicated products using numerical simulation is problematic. The purpose of our work was to develop a numerical simulation method for complicated shaped products such as household appliances and information appliances. We have developed a fluid simulation method that can easily be applied to complicated shapes and [inspected/investigated?] the modeling of [fluid function parts (standard term?)], including fans and filters. The simulation method is based on a Cartesian grid method and can be used for high-speed, large-scale simulation. However, using a Cartesian grid can cause shape errors. We investigated the effect of the shape errors on the modeling of fans and filters. A geometric comparison between the product shape using our Cartesian grid method and 3D CAD model showed the necessity of adjusting the model coefficients. We also carried out fluid simulation of a liquid crystal projector with four cooling fans, measured the internal pressure of an actual projector, and compared it with the result from analysis. The results demonstrated that the proposed simulation method using a fan model can predict the pressure level with a maximum error of 11%.
一般社団法人日本機械学会の論文
2008-09-12