Turbine blade profile parameter normal comb-shaped display and interactive application method

Abstract

The invention belongs to the field of turbine blade design, and relates to a turbine blade profile parameter normal comb-shaped display method, which comprises the following steps of: firstly, reading discrete points of a blade to form a blade profile, and then correspondingly associating local normal vectors with profile parameters in sequence by judging the sequence of the discrete points, judging the positions of a blade back side and a blade basin side and judging the outer normal direction, so as to form a final profile. And then calculating the normal die length and die length end point coordinates at each discrete point, and drawing and displaying to form a comb-shaped display view. By means of the comb-shaped display view, integrated display of profile patterns and parameter variables can be achieved, the mutual relation between the variables and the profiles can be visually and specifically displayed, the outer heat exchange coefficient and static pressure distribution of the profiles can be integrally displayed in a modeling platform, and during blade cooling design, the design efficiency is improved. And the air film holes and the internal cooling structure of the blade can be reasonably arranged according to the specific distribution condition of the heat exchange coefficient along the blade profile.

Description

technical field [0001] The present application belongs to the field of turbine blade design, and in particular relates to a normal comb display and interactive application method of turbine blade profile parameters. Background technique [0002] The surface heat transfer coefficient and pressure distribution of the turbine cooling blade are important basis for the design of cooling structure, so how to accurately capture the distribution of heat transfer coefficient along the airfoil is very important, in order to Figure 11 The blade profile shown as an example, Figure 12 The parameter variation of the external heat transfer coefficient with the relative arc length of the pressure surface and suction surface is given. This is the main drawing display technology method at present. This display method can better reflect the distribution trend of variable parameters along the relative arc length, but Since the blade surface is a curved surface, the curvature of different posi...

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Problems solved by technology

[0004] The purpose of this application is to provide a comb-like display and interactive application method for the normal direction of turbine blade profile parameters to solve the problem of the relative arc length and The local coordinates are not in a linear equidistant relationship, which makes it difficult to intuitively understand the details of the specific position of each parameter variable along the profile from the image

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