| The torpedo is one of the main aquatic weapon in fighting back submarine and warship. And the combustion chamber is an important part of torpedo's Power & Propelling System. In studying the working process of the combustion chamber, theories of dynamics,heat transfer,chemical reaction have to be applied. In the past years,the design of the combustion chamber always depends on experimentation.Howreve,with the rapid development of combustion and computational fluid dynamics,in addition of the application of the computational fluid dynamics in combustion, the simulation become one of the main way in staying combustiomn,as provide strong tool of forecasting the capability and the project design.The spray combustion chamber model was established and boundary conditions was set up in the paper,based on research of the character on rotating combustion chamber and liquid monopropellant. Then the process of spray combustion was simulated by Fluent of computational fluid dynamics.The standard k-ε model,species transport model,discrete phase model and radiation was used and the simple arithmetic was used to couple of pressure and velocity in the paper.The standard k-ε model,species transport model,discrete phase model and radiation model were used and the SIMPLE arithmetic was used in compling the pressure and velocity in the paper. Then the pressure field,temperature field,velocity field and the mass fraction field fuel and product were computed with these models in different rotating velocity in the specific ratating combustion chamber .Then the combustion chanmber was optimized by analyzing the fields. To prove the result,the same fields were simulated in the same conditions in the new rotating combustion chanmber. By the frontal result constrast with the back result,the conductions were obtained:Rotating lengthen the path of fuel in combustion chamber and accelerate combustion.The total pressure and the outlet axial velocity were raised in new combustion... |
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