Modeling method for turbine blade pneumatic-dehumidification-cooling test

Abstract

The invention discloses a modeling method for turbine blade pneumatic-dehumidification-cooling test. The modeling method comprises a turbine blade pneumatic test modeling method, a turbine blade dehumidification test modeling method and a turbine blade cooling test modeling method. The turbine blade pneumatic test modeling method comprises three processes of pneumatic test structure similarity modeling, pneumatic test flow similarity modeling and pneumatic test result modeling conversion. The turbine blade dehumidification test modeling method comprises three processes of dehumidification teststructure similarity modeling, dehumidification test flow similarity modeling and dehumidification test result modeling conversion. The turbine blade cooling test modeling method comprises three processes of cooling test structure similarity modeling, cooling test flow heat transfer similarity modeling and cooling test result modeling conversion. By the adoption of the modeling method, the test cost and the test period can be greatly reduced, and then the product research and development period of the turbine blade is shortened.

Description

technical field [0001] The invention belongs to the technical field of turbines, in particular to a modeling method for aerodynamic-dehumidification-cooling tests of turbine blades. Background technique [0002] Turbine is a kind of high-speed rotating machinery, which is widely used in thermal power generation, nuclear power, aerospace, ship propulsion and industrial drive and other fields. It is a high-end industry that countries focus on investing and competing for development. During the working process of the turbine, the working fluid flows through the cascade channel, and drives the rotor blades to rotate, and transmits the rotational torque to the rotating shaft through the wheel disc, thereby driving the generator to generate electricity or output power externally. [0003] As one of the core components of the turbine system, the blade not only has to withstand the high-temperature and high-pressure environment of the working medium, but also is affected by the air...

AI Technical Summary

Problems solved by technology

In the current public information, the modeling method is only applied in some relatively simple test systems, but in the aspects of turbine blade aerodynamics, dehumidification and cooling tests, there is no systematic model that can directly guide the design of the test. method

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