In order to explore the effects laws of aquatic plants on flow velocity,the wave-flow-aquatic plant experi-ment is integrated through the aquatic plant-flume integrated system(P-FIS),the hydrodynamic control system(HCS)and the hydrodynamic monitoring system(HMS).The experimental conditions include three types of aquatic plants,six sets of plant densities and eight hydrodynamic conditions.The results show that under the irregular wave condition,the wave elimination and blocking effects of flexible emergent plants and flexible submerged plants are better than those of rigid emergent plants.Under the hydrodynamic condition of wave,the short flexible submerged plants have a stronger flow capability;Under the hydrodynamic condition of flow,the high flexible emergent plants have a stronger flow capa-bility.At the range of measuring location z/H=(0.28±0.04),the fluctuation of the flow velocity reaches its peak val-ue.The flexible emergent plants and flexible submerged plants have luxuriant foliage structures below the water surface,and the planting density will significantly influence the water velocity.The research results can provide the basis for planting suitable and appropriate aquatic plants to maintain the fluidity of the water body,meanwhile reducing the erosion of sediment and improving the water quality.
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万方数据
维普
