Influence of geometrical arrangement of piles on morphology around permeable groyne
In this study, the bed topography changes around a single and two-rows opened groins experimentally studied. The experiments carried out for different percentages of opening, different distances of two rows of rods and differents Froude Numbers. The two-row rods groins considered by two geometrical arrangement, in one condition the two rows of rods of opened groin placed Zigzag and, in the other case, the two-row rods placed along with each other. The results showed that the effect of increasing the Froude number on the maximum scour depth in the case of two-row along each other groin is greater than zigzag. So, As the Froude number increases from 0.22 to 0.3, the maximum scour depth in the two-row along each other case becomes 86% more than the zigzag groin. The results also show that for different per cent of opening, the maximum scours depth in the two-row along each other is about 85% more than the zigzag groin. However, as the percentage of openness decreases from 70% to 30% in the two-step open breakwater, the Zigzag rate of increase of the maximum scour depth is almost the same.
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.