Turbine exhaust diffuser with a gas jet producing a coanda effect flow control
Abstract
An exhaust diffuser system and method for a turbine engine includes an inner boundary and an outer boundary with a flow path defined therebetween. The inner boundary is defined at least in part by a hub structure that has an upstream end and a downstream end. The outer boundary may include a region in which the outer boundary extends radially inward toward the hub structure and may direct at least a portion of an exhaust flow in the diffuser toward the hub structure. The hub structure includes at least one jet exit located on the hub structure adjacent to the upstream end of the tail cone. The jet exit discharges a flow of gas substantially tangential to an outer surface of the tail cone to produce a Coanda effect and direct a portion of the exhaust flow in the diffuser toward the inner boundary.
- Inventors:
- Issue Date:
- Research Org.:
- Siemens Energy, Inc., Orlando, FL, USA
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1124610
- Patent Number(s):
- 8647057
- Application Number:
- 12/944,177
- Assignee:
- Siemens Energy, Inc. (Orlando, FL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- DOE Contract Number:
- FC26-05NT42644
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Orosa, John, and Montgomery, Matthew. Turbine exhaust diffuser with a gas jet producing a coanda effect flow control. United States: N. p., 2014.
Web.
Orosa, John, & Montgomery, Matthew. Turbine exhaust diffuser with a gas jet producing a coanda effect flow control. United States.
Orosa, John, and Montgomery, Matthew. Tue .
"Turbine exhaust diffuser with a gas jet producing a coanda effect flow control". United States. https://www.osti.gov/servlets/purl/1124610.
@article{osti_1124610,
title = {Turbine exhaust diffuser with a gas jet producing a coanda effect flow control},
author = {Orosa, John and Montgomery, Matthew},
abstractNote = {An exhaust diffuser system and method for a turbine engine includes an inner boundary and an outer boundary with a flow path defined therebetween. The inner boundary is defined at least in part by a hub structure that has an upstream end and a downstream end. The outer boundary may include a region in which the outer boundary extends radially inward toward the hub structure and may direct at least a portion of an exhaust flow in the diffuser toward the hub structure. The hub structure includes at least one jet exit located on the hub structure adjacent to the upstream end of the tail cone. The jet exit discharges a flow of gas substantially tangential to an outer surface of the tail cone to produce a Coanda effect and direct a portion of the exhaust flow in the diffuser toward the inner boundary.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {2}
}