| Turbine blade is very important in the hot component of aviation engine. And it is operating in the circumstance of high pressure, rotation speed and temperature. In order to increase the efficiency of aviation engine, we always raise the temperature of gas before turbine Then it makes more heavy work load for blade. So it is very necessary to find out the situation of blade. Which accurately predict the temperature field of the blades to extend its life and improve the aerodynamic performance of the blade is very important.CFD(computational fluid dynamics) in many fields has been widely used. And it can obtain data which is difficult to find out in experiment. This paper will use the technology of CFD numerical simulation to obtain the temperature and flow field of blade.Firstly, the flow field of one blade was calculated to obtain the distribution of the temperature, pressure and Mach number. Secondly, taking the impact of other blades into account, the simulation of many turbine blades was made to analyze the field of its temperature, pressure and Mach number. Then on this basis, this paper calculated the situation of the blade of Mark ? by using the technology of fluid-structure interaction. Considering the actual structure of the blade, the blade who has three-dimensional structure was simulated by using the technology of one-way fluid-structure interaction. Similarly, the field of Mach number and the temperature was made to find out the situation of blade. Finally, the numerical results were summarized to provide some suggestion about the structural optimization of blade, this paper also elaborated MDO system which to be used in the structural optimization of the blade. |
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