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本文基于Bagnold水流功率原理,考虑到非线性波传播质速度的影响,导出了在波浪单独作用下推移质净输沙率公式,该公式体现了有限水深前进波在沙质床面上波浪掀沙、水流输沙的机理,并得到试验资料的验证.在此基础上进一步推导了波、流联合作用下推移质单宽输沙率公式,并与现有的波流输沙率公式作了比较,计算结果适中.上述公式具有一定理论基础,概念清晰,结构简明,使用方便,可适用于非破碎带输沙计算.
Based on the Bagnold flow power principle and taking into account the influence of nonlinear wave velocity, the formula of net net sediment transport rate under different wave actions is deduced. The formula shows that the water wave with limited water depth moves on the sandy bed , And the mechanism of sediment transport by water and verified by the experimental data.On the basis of this, the formula of single-width sediment transport rate with push-slip and flow combination is further deduced and compared with the existing formula , The calculation result is moderate.The above formula has a certain theoretical basis, the concept is clear, the structure is concise, the use is convenient, and it can be applied to the calculation of sediment transport in non-broken zone.