Diffuser for a turbine engine and method of forming same

A turbine engine comprising:

• a turbine section configured to exhaust a fluid, the turbine section defining a centerline axis;
• and
• an exhaust section coupled downstream from said turbine section, said exhaust section comprising a diffuser comprising:
• a first wall that extends circumferentially about said centerline axis;
• a second wall that extends circumferentially about said centerline axis, at least a portion of said second wall positioned radially outwardly from at least a portion of said first wall, wherein a perimeter of said first wall and a perimeter of said second wall each are oriented in a respective plane perpendicular to the centerline axis and define an oval shape extending from a first radial end to a circumferentially opposite second radial end, said first radial end is disposed at a first distance from the centerline axis, said second radial end is disposed at a second distance from the centerline axis that is greater than the first distance;
• and
• a flow path defined by said first wall and said second wall, said flow path extends from an inlet configured to receive an axial flow of the fluid to a circumferentially extending outlet, wherein said outlet is defined by said perimeter of said first wall and said perimeter of said second wall and is configured to emit the fluid in a substantially radial direction, wherein said outlet extends asymmetrically about said centerline axis.

A method of forming a diffuser for a turbine engine, said method comprising:

• disposing a first wall circumferentially about a centerline axis of the turbine engine;
• and
• disposing a second wall circumferentially about the centerline axis, wherein a perimeter of the first wall and a perimeter of the second wall each are oriented in a respective plane perpendicular to the centerline axis and define an oval shape extending from a first radial end to a circumferentially opposite second radial end, the first radial end is disposed at a first distance from the centerline axis, the second radial end is disposed at a second distance from the centerline axis that is greater than the first distance;
• and
• positioning at least a portion of the second wall radially outwardly from at least a portion of the first wall, such that a flow path is defined by the first wall and the second wall, wherein the flow path extends from an inlet configured to receive an axial flow of a fluid to a circumferentially extending outlet, wherein the outlet is defined by the perimeter of the first wall and the perimeter of the second wall and is configured to emit the fluid in a substantially radial direction, wherein the outlet extends asymmetrically about the centerline axis.