ESTIMATION OF SHEAR STRESS WORKING ON SUBMERGED HOLLOW FIBRE MEMBRANE BY CFD METHOD IN MBRs
スポンサーリンク
概要
- 論文の詳細を見る
This study was conducted to evaluate shear stress working on submerged hollow fibre membrane by CFD (Computation Fluid Dynamics) method in MBRs. Shear stress on hollow fibre membrane caused by aeration was measured directly using a two-direction load sensor. The measurement of water-phase flow velocity was done also by using laser doppler velocimeter. It was confirmed that the shear stress was possible to be evaluated from the water-phase flow velocityby the result of comparison of time average shear stress actually measured with one hollow fibre membrane and the one calculated by the water-phase flow velocity. In the estimation of the water-phase flow velocity using the CFD method, time average water-phase flow velocity estimated by consideration of the fluid resistance of the membrane module nearly coincided with the measured values, and it was shown that it was possible to be estimated also within the membrane module. Moreover, the measured shear stress and drag force well coincided with the values calculated from the estimated water-phase flow velocity outside of membrane module and in the center of membrane module, and it was suggested that the shear stress on the hollow fibre membrane could be estimated by the CFD method in MBRs.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
- Free in-plane vibration of nonuniform arches with various shapes of axis and initial loads.
- Geometrically nonlinear analysis of nonuniform arches of any shape.
- STUDY ON THE OPTIMUM SIZE OF RAILWAY SLEEPER FOR BALLASTED TRACK
- Geometrically and materially nonlinear analysis of nonprismatic arches of any shape.
- タイトル無し