System and method for turbomachine with local vortex generator array
AssigneeHoneywell International Inc.
InventorsBruce D. Reynolds, John Repp
Life of this patent
Estimating the term…
Abstract
A turbomachine includes a shroud and a hub spaced apart from the shroud to channel an airflow along a direction. The turbomachine includes a plurality of airfoils coupled between the shroud and the hub. At least one airfoil of the plurality of airfoils includes a leading edge spaced apart from a trailing edge in the direction of the airflow and a pressure side opposite a suction side. The at least one airfoil has a chord that is 0% chord at the leading edge and 100% chord at the trailing edge, and a span defined as 0% at the hub and 100% at the shroud. The turbomachine includes at least one local vortex generator array defined onto the hub between 0% chord to −10% chord at 0% span so as to extend forward of the leading edge.
Claims20
A turbomachine comprising:
- a shroud;
- a hub spaced apart from the shroud, the hub and the shroud configured to channel an airflow along a direction;
- a plurality of airfoils coupled between the shroud and the hub, at least one airfoil of the plurality of airfoils including a leading edge spaced apart from a trailing edge in the direction of the airflow and a pressure side opposite a suction side, the at least one airfoil has a chord that is 0% chord at the leading edge and 100% chord at the trailing edge, and a span defined as 0% at the hub and 100% at the shroud;
- and
- at least one local vortex generator array defined onto the hub between 0% chord to −10% chord at 0% span so as to extend forward of the leading edge,
- wherein:
- the at least one local vortex generator array comprises a first local vortex generator array defined on the suction side and the shroud between greater than or equal to 60% span and 100% span, and a second local vortex generator array defined on the suction side and the hub between 0% span and less than or equal to 40% span;
- and
- there are no local vortex generators on the suction side between at least 40% span and 60% span.
A turbomachine comprising:
- a shroud;
- a hub spaced apart from the shroud, the hub and the shroud configured to channel an airflow along a direction;
- a plurality of airfoils coupled between the shroud and the hub, at least one airfoil of the plurality of airfoils including a leading edge spaced apart from a trailing edge in the direction of the airflow and a pressure side opposite a suction side, the at least one airfoil has a chord that is 0% chord at the leading edge and 100% chord at the trailing edge, and a span defined as 0% at the hub and 100% at the shroud;
- and
- at least one local vortex generator array defined on the shroud between 0% chord to −10% chord at 100% span so as to extend forward of the leading edge,
- wherein:
- the at least one local vortex generator array comprises a first local vortex generator array defined on the suction side and the shroud between greater than or equal to 60% span and 100% span, and a second local vortex generator array defined on the suction side and the hub between 0% span and less than or equal to 40% span;
- and
- there are no local vortex generators on the suction side between at least 40% span and 60% span.
A turbomachine comprising:
- a shroud;
- a hub spaced apart from the shroud, the hub and the shroud configured to channel an airflow along a direction;
- a plurality of airfoils coupled between the shroud and the hub, at least one airfoil of the plurality of airfoils including a leading edge spaced apart from a trailing edge in the direction of the airflow and a pressure side opposite a suction side, the at least one airfoil has a chord that is 0% chord at the leading edge and 100% chord at the trailing edge, and a span defined as 0% at the hub and 100% at the shroud;
- a first local vortex generator array defined on the suction side and the shroud between greater than or equal to 60% span and 100% span;
- and
- a second local vortex generator array defined on the suction side and the hub between 0% span and less than or equal to 40% span,
- wherein there are no local vortex generators on the suction side between at least 40% span and 60% span.
Dependencies are inferred from the claim text.