1606 チャネル内粒子分散流におけるturbophoresisと運動量バランスについて(G05-2 流体工学(2)混相流・界面,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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An idealized gas-liquid annular flow in a vertical rectangular channel is considered. Point sources of solid spheres are located on the walls to represent atomizing wall films. Feedback and inter-particle collisions are not considered. Statistics for fluid turbulent flow seen by particles were determined in the calculations in which a direct numerical simulation was used to calculate the fluid turbulence. The influence of a very wide range of particle sizes on the statistics is shown. The momentum balance between the mean value of the wall-normal fluid velocities that are seen by particles and the turbophoresis, in the fully-developed concentration field, demonstrates defects of the models for these effects.
一般社団法人日本機械学会の論文
2008-08-02