BLADE FOR A FLOW MACHINE

摘要

The invention relates to a blade intended to be exposed to a gas flow (11) at high speed, during operation of a flow machine comprising the blade, which blade comprises a front end (1) designed to face towards the incoming gas flow (11) and a rear end (2). The front end (1) is provided with a concave area (7) that is such that during operation a stagnation point for the incoming gas flow (11) arises at a distance in front of an outer blade surface (12) that defines the concave area (7) and such that the outer blade surface (12) is thereby at least essentially protected from the incoming gas flow.