The Internal Flow Induced Deflections of Ocean Outfall Pipeline

C. X. Wang†, F. Feng†*, J. J. Tu†, & L. Raissouni‡

†Collage of Shipbuilding Engineering, Haerbin Engineering University, Harbin, Heilongjiang, China
‡Faculty of Sciences and Technologies, Abdelmalek Essaadi University, Tangier, Morrocco

ABSTRACT: The structural safety of the ocean outfall pipeline is the critical factor to insure the waste water can be transferred to the depopulated area, the equations of deflections induced by the internal flow on the pipeline have not yet formulated in executive designing standard of China. The numerical model was based on the ocean outfall engineering in Yantai, China. To develop the deflections induced by internal flow, the Reynolds-Averaged Navier-Stokes (RANS) model of computational fluid dynamics (CFD) was applied in numerical simulation. The loads on the pipe were treated theoretically and the deflections of different cross sections were computed, the maximum deflection occur at the junction section and the deflections of pipeline which installed on the sea bed approximately equal

Keywords: Cfd; Turbulence; Pipeline; Numerical simulation; Deflection.