Research On Back Bend Duct Buoy Wave Power Generation Device Of Amphibious Vehicle

Humankind's demand for energy is increasing,but traditional fossil fuel resources are increasingly depleted,and the energy problem has gradually become prominent.The transportation sector is a "big consumer" of energy,especially the energy consumption of vehicles is increasing year by year,and the impact on the environment is also increasing.The society's demand for clean energy is becoming more and more urgent.Ocean energy has attracted much attention due to its huge density,abundant reserves,and clean renewable energy.Combining ocean energy with vehicles can alleviate energy pressure to a certain extent,and has research significance for the application of ocean energy and the application of new energy to vehicles.This article puts forward the concept of a new type of amphibious vehicle based on the combination of marine energy and vehicles.It is a new type of vehicle that combines a rear-bent tube wave energy generating device with an amphibious vehicle.Under the marine conditions of the amphibious vehicle,the back-bent tube wave energy power generation device is used to capture ocean energy to generate electricity,thereby providing energy for the amphibious vehicle.Using a combination of numerical simulation and physical experiment to study the efficiency of the back-bend power generation device from capturing ocean energy to aerodynamic energy(first-level conversion efficiency);and then through numerical simulation,the turbine mechanism proposed by the institute corresponds to Power generation performance under working conditions(secondary conversion efficiency);finally,the research results are verified through the overall model power generation physical experiment.For the research on the first-stage rotation efficiency of the back-bend wave energy power generation device,the numerical flume established by FLUENT is used to simulate and analyze the scaled model.The waves in the numerical flume are realized by the boundary wave making method and the resistance source term wave elimination method;the flume model is based on the Realizable k-? turbulence model and the VOF model.In the simulation analysis of the model,the influence of the shape parameters on the efficiency of the back bending device is mainly studied,and the analysis and research are carried out from four aspects: the draft,the shape of the front wave surface,the shape of the air chamber and the length of the horizontalpipe.At the same time,a corresponding physical experiment model was built,and the results obtained by the two collections were compared and analyzed.In view of the research on the two-stage rotation efficiency of the back-bend wave energy power generation device,the model of two new-type impingement turbines with fixed baffle and symmetrical wing impingement turbines with fixed baffles is compared,and the flow channel is established in FLUENT.Numerical simulation research.UDF is used to input the alternating air flow conditions at the inlet of the runner velocity to study the response of the above-mentioned turbine under the operating conditions.And generate electricity by building physical experiment models.The BBDB(Backward Bend Duct Buoy)wave energy generation device of amphibious vehicle studied in this paper has a certain power generation capacity.The wave energy conversion efficiency of the prototype proposed can reach 37.5%,which can supply energy for some small electrical equipment on amphibious vehicle.The BBDB wave energy generation device has reference significance for energy development and utilization direction of new energy vehicle.