【摘要】 采用Ansys中的声学流体单元模拟库水,进行了某重力坝与库水的流固耦合分析。考虑了库底吸收系数对坝库耦合系统动力响应的影响,计算结果表明:库底吸收性显著降低了动水压力,吸收系数越大,效果越明显;位移反应也有所减小。比较了Ansys与Adina的计算结果及效率,结果表明:两者的计算结果基本一致,Adina的计算效率高于Ansys,但Ansys的前后处理较Adina高效。更多还原

【Abstract】 Fluid-solid coupling analysis was carried out for a gravity dam and reservoir,the reservoir was simulated by acoustic fluid element in Ansys.The influence of reservoir-bottom absorption coefficient to dynamic response of dam-reservoir coupling system was considered.The results show that the absorption capability reduces the hydrodynamic pressure significantly.The bigger the absorption coefficient,the more obvious the effect is,and the displacement response also decreases slightly.The computational results and efficiency were compared between Ansys and Adina.They both have accordant computational results.The computational efficiency of Adina is higher than Ansys,but Ansys has higher efficiency in pre-processing and post-processing.更多还原