Turbine blade

摘要

A turbine blade has a profile including a blade suction side line, a blade pressure side line, and a blade trailing edge formed by a curve connecting the rear ends of the blade suction side and pressure side lines to each other, wherein the curve forming the blade trailing edge of the profile is formed by connecting a pressure side curve portion which has an arc shape having a constant radius of curvature and extending from the rear end of the blade pressure side line toward the camber line of the profile, and a suction side curve portion which extends from the rear end of the blade suction side line toward the camber line while passing through a region closer to the camber line than a symmetric curve portion which is line-symmetric to the pressure side curve portion with respect to the camber line.

主权项

1. A turbine blade with a profile including a blade suction side line, a blade pressure side line, and a blade trailing edge formed by a curve connecting a rear end of the blade suction side line and a rear end of the blade pressure side line to each other,
wherein the curve forming the blade trailing edge of the profile is formed by connecting a pressure side curve portion which has an arc-like shape having a constant radius of curvature and extending from the rear end of the blade pressure side line toward a camber line of the profile, and a suction side curve portion which extends from the rear end of the blade suction side line toward the camber line while passing through a region closer to the camber line than a symmetric curve portion which is line-symmetric to the pressure side curve portion with respect to the camber line.