TURBOMACHINE ROTOR BLADE WITH AN AIRFOIL HAVING A VARIABLE ELLIPTICAL TRAILING EDGE

A rotor blade 100 of a turbomachine 10 includes an airfoil 114. The airfoil includes a root 118 and a tip 115 which define a span 128 of the airfoil therebetween. The airfoil also includes a leading edge 124 and a trailing edge 126 downstream of the leading edge along a flow direction. The leading edge and the trailing edge each extend across the span 128 of the airfoil from the root to the tip. The airfoil further includes a pressure side surface 120 and a suction side surface 122. The pressure side surface and the suction side surface are continuous about the trailing edge 126 and collectively define an arc 210 centered on the trailing edge. The arc has a semi-major axis 206 and a semi-minor axis 204. The semi-major axis and the semi-minor axis of the arc define an axis ratio, and the axis ratio varies over the span of the airfoil 114. 本发明公开了一种涡轮机(10)的转子叶片(100)，该转子叶片包括翼型件(114)。该翼型件(114)包括在其间限定该翼型件(114)的翼展(128)的根部(118)和尖端(115)。该翼型件(114)还包括前缘(124)以及沿着流动方向在该前缘(124)下游的后缘(126)。前缘(124)和后缘(126)各自在翼型件(114)的翼展(128)上