In this paper, sediment deposition and trapping efficiency in shallow rectangular reservoirs were numerically estimated considering secondary flows. In order to do this, three dimensional (3D) steady, incompressible, Reynolds-averaged Navier-Stokes (RANS) equations with the standard $k-\epsilon$ turbulence model were used as the governing equations. The drift-flux model also was used to model the solid phase. In the next step, the developed model was validated using the available data. Then it was used to simulate the sediment deposition and trapping efficiency in shallow rectangular reservoirs, considering secondary flows. The results show the sediment is trapped in the inlet corner of the reservoir, and two pairs of large vortices on the sides and two pairs of small vortices at the inlet corner of the reservoir are observed. Finally, the effects of the input angle of the reservoir to the trapping efficiency are evaluated and the results are discussed.

在本文中，考虑了二次水流，对矩形浅水库的泥沙沉积和捕集效率进行了数值估算。为此，请使用标准的三维（3D）稳定，不可压缩，雷诺平均Navier-Stokes（RANS）方程$ķ-\epsilon$湍流模型被用作控制方程。漂移通量模型也用于建模固相。下一步，使用可用数据验证开发的模型。然后，它被用于模拟考虑了二次水流的浅矩形储层中的沉积物沉积和捕集效率。结果表明，沉积物被捕集在储层进口角处，在储层进口角处观察到两对大涡旋和两对小涡流。最后，评估了油藏输入角对捕集效率的影响，并讨论了结果。