Influence Of Ansys-based Submarine Propellants On Environmental Sound Velocity Fields

Submarine plays an important role in naval operations,the design of submarine needs excellent concealment and long-term endurance.Among them,and the invisibility of submarine is an important concern of submarine design,and the internal waves generated by submarine wake and the turbulence generated by turbulent flow have an important influence on ocean observation,and the characteristics of wake disturbance can provide reliable basis for underwater submarine detection and ocean information processing.In view of the difficulty of related experiments,this kind of problem is studied by simulation.The fluid model is established by finite element method,environmental conditions and external loads can be set,and the classical calculation theory is used as the calculation guide to simulate the more accurate simulation results.In this paper,the finite element method is used to study the evolution characteristics of wake field generated by propeller rotation,which is the basic research of acoustic detection of underwater moving submerged body.it is of great significance in the preliminary study of acoustic detection of underwater sports submergence.Based on the theory of fluid dynamics,the simulation is studied and analyzed by using the computational fluid dynamics method and the relevant theoretical knowledge of turbulent flow.The research status of submarine wake and internal waves and the subject theory involved in this paper are described.In this paper,the finite element analysis method of fluid mechanics combines theoretical analysis and research simulation into simulation research,the propeller model was established based on ANSYS finite element simulation,and the temperature distribution and velocity distribution of submarine propeller wake were calculated by computational fluid dynamics.Combining the analysis methods of acoustics and fluid dynamics,the innovative results are obtained by using the advantages of interdisciplinary,which will have a certain degree of promotion to the detection and design of the submerged body.