| 主权项 |
1. An airfoil for a first stage compressor blade, the airfoil comprising:
a plurality of chord lengths, a plurality of stagger angles, and a plurality of camber angles at a plurality of divisions, respectively, along an airfoil height starting from a reference point at a first end of the airfoil of the first stage compressor blade extending to a second distal end of the airfoil of the first stage compressor blade, wherein for operation at a nominal frequency of 50 Hz: at a first division starting from the reference point, the airfoil height is 0.000 mm, the stagger angle is 28.594 degrees, the chord length is 216.300 mm±10 millimeters, and the camber angle is 28.919 degrees±1 degree, at a second division between the first division and the second distal end of the airfoil, the airfoil height is 72.059 mm±10 millimeters, the stagger angle is 35.305 degrees±1 degree, the chord length is 217.400 mm±10 millimeters, and the camber angle is 24.761 degrees±1 degree, at a third division between the second division and the second distal end of the airfoil, the airfoil height is 139.669 mm±10 millimeters, the stagger angle is 40.998 degrees±1 degree, the chord length is 218.800 mm±10 millimeters, and the camber angle is 21.093 degrees±1 degree, at a fourth division between the third division and the second distal end of the airfoil, the airfoil height is 203.900 mm±10 millimeters, the stagger angle is 45.857 degrees±1 degree, the chord length is 220.300 mm, and the camber angle is 17.883 degrees±1 degree, at a fifth division between the fourth division and the second distal end of the airfoil, the airfoil height is 265.358 mm±10 millimeters, the stagger angle is 50.003 degrees±1 degree, the chord length is 222.000 mm, and the camber angle is 15.100 degrees±1 degree, at a sixth division between the fifth division and the second distal end of the airfoil, the airfoil height is 324.430 mm±10 millimeters, the stagger angle is 53.520 degrees, the chord length is 223.900 mm, and the camber angle is 12.714 degrees, at a seventh division between the sixth division and the second distal end of the airfoil, the airfoil height is 381.390 mm±10 millimeters, the stagger angle is 56.478 degrees±1 degree, the chord length is 225.800 mm, and the camber angle is 10.695 degrees±1 degree, at an eighth division between the seventh division and the second distal end of the airfoil, the airfoil height is 436.490 mm±10 millimeters, the stagger angle is 58.932 degrees±1 degree, the chord length is 227.900 mm, and the camber angle is 9.014 degrees±1 degree, and at a ninth division between the eighth division and the second distal end of the airfoil, the airfoil height is 489.880 mm, the stagger angle is 60.928 degrees, the chord length is 230.000 mm, and the camber angle is 7.644 degrees±1 degree, and wherein for operation at a nominal frequency of 60 Hz measurements the airfoil height is scaled by a factor of 1:1.2. |
