Experimental and numerical study on the wave force calculation of a partially immersed horizontal cylindrical float

Taking the cylindrical float of the floating fence of a floating litter collection device as the research object, based on the shallow immersion characteristics of the cylindrical float, the Morison equation is modified, and the interaction between regular waves and the partially immersed horizontal cylindrical float is discussed in combination with scale model test. The results show that the modified Morison equation can accurately predict the wave force of the horizontal cylindrical float and reveal the influence of amplitude, immersion depth and period on the wave force of the cylindrical float. For partially immersed cylindrical floats, the wave force increases with the increase in wave height and decays with the increase in period. The positive value distribution of the wave force is larger than that of the negative direction, and the difference between the positive and negative directions is mainly affected by the immersion depth. •The Morison equation is improved to accurately calculate the wave forces of a shallow submerged horizontal cylinder.•The scale model test also been adopted to verify theory.•We studied the effects of wave parameters of wave force.•The wave force increases with the increase in wave height and decays with the increase in period.