Subjects: Physics >> Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics submitted time 2023-12-18 Cooperative journals: 《应用力学学报》
Abstract:
Based on computational fluid dynamics(CFD),the floating state and sailing resistance of amphibious desilting robot were analyzed.The draft depth and pitch angle were obtained by calculating the floating state with the overlapping mesh method.The static mesh method and overlapping mesh method were used to predict the sailing resistance of amphibious desilting robot and the two methods were compared.The results show that the draft depth and pitch angle of the amphibious desilting robot can be calculated effectively by using the overlapping mesh method.Both the static grid method and the overlapping mesh method can predict the sailing resistance of amphibious desilting robot.The static mesh method has high efficiency,but can only apply to the situation of the low sailing speed.While the overlapping mesh method is suitable for sailing resistance prediction under different sailing speed,it has low efficiency.The results are of great reference value to the design and improvement of amphibious desilting robot.