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Title: Compound cooling flow turbulator for turbine component

Abstract

Multi-scale turbulation features, including first turbulators (46, 48) on a cooling surface (44), and smaller turbulators (52, 54, 58, 62) on the first turbulators. The first turbulators may be formed between larger turbulators (50). The first turbulators may be alternating ridges (46) and valleys (48). The smaller turbulators may be concave surface features such as dimples (62) and grooves (54), and/or convex surface features such as bumps (58) and smaller ridges (52). An embodiment with convex turbulators (52, 58) in the valleys (48) and concave turbulators (54, 62) on the ridges (46) increases the cooling surface area, reduces boundary layer separation, avoids coolant shadowing and stagnation, and reduces component mass.

Inventors:
; ; ;
Issue Date:
Research Org.:
Siemens Energy, Inc., Orlando, FL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1164355
Patent Number(s):
8,894,367
Application Number:
12/884,464
Assignee:
Siemens Energy, Inc. (Orlando, FL)
DOE Contract Number:  
FC26-05NT42644
Resource Type:
Patent
Resource Relation:
Patent File Date: 2010 Sep 17
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Lee, Ching-Pang, Jiang, Nan, Marra, John J, and Rudolph, Ronald J. Compound cooling flow turbulator for turbine component. United States: N. p., 2014. Web.
Lee, Ching-Pang, Jiang, Nan, Marra, John J, & Rudolph, Ronald J. Compound cooling flow turbulator for turbine component. United States.
Lee, Ching-Pang, Jiang, Nan, Marra, John J, and Rudolph, Ronald J. Tue . "Compound cooling flow turbulator for turbine component". United States. https://www.osti.gov/servlets/purl/1164355.
@article{osti_1164355,
title = {Compound cooling flow turbulator for turbine component},
author = {Lee, Ching-Pang and Jiang, Nan and Marra, John J and Rudolph, Ronald J},
abstractNote = {Multi-scale turbulation features, including first turbulators (46, 48) on a cooling surface (44), and smaller turbulators (52, 54, 58, 62) on the first turbulators. The first turbulators may be formed between larger turbulators (50). The first turbulators may be alternating ridges (46) and valleys (48). The smaller turbulators may be concave surface features such as dimples (62) and grooves (54), and/or convex surface features such as bumps (58) and smaller ridges (52). An embodiment with convex turbulators (52, 58) in the valleys (48) and concave turbulators (54, 62) on the ridges (46) increases the cooling surface area, reduces boundary layer separation, avoids coolant shadowing and stagnation, and reduces component mass.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {11}
}

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