Helicopter Noise Prediction: The Current Status and Future Direction

1994 ◽  
Vol 170 (1) ◽  
pp. 79-96 ◽  
Author(s):  
K.S. Brentner ◽  
F. Farassat
Keyword(s):  
Current Status ◽  
Noise Prediction ◽  
Helicopter Noise ◽  
Future Direction

Advanced open rotor noise prediction

2014 ◽  
Vol 118 (1208) ◽  
pp. 1125-1135 ◽  
Author(s):  
M. J. Kingan
Keyword(s):  
High Speed ◽  
Broadband Noise ◽  
Current Status ◽  
Prediction Methods ◽  
Noise Prediction ◽  
Acoustic Data ◽  
Rotor Noise ◽  
Future Challenges ◽  
Open Rotor ◽  
Development And Validation

Abstract The purpose of this paper is to describe the current status of open rotor noise prediction methods and to highlight future challenges in this area. A number of analytic and numerical methods are described which can be used for predicting ‘isolated’ and ‘installed’ open rotor tonal noise. Broadband noise prediction methods are also described and it is noted that further development and validation of the current models is required. The paper concludes with a discussion of the analytical methods which are used to assess the acoustic data collected during the high-speed wind-tunnel testing of a model scale advanced open rotor rig.

scholarly journals Minimally invasive esophagectomy: current status and future direction

2012 ◽  
Vol 26 (6) ◽  
pp. 1794-1794 ◽  
Author(s):  
Kirsten Maas ◽  
Surya Biere ◽  
Donald Van der Peet ◽  
Miguel Cuesta
Keyword(s):  
Minimally Invasive ◽  
Minimally Invasive Esophagectomy ◽  
Current Status ◽  
Invasive Esophagectomy ◽  
Future Direction

Current Status and Future Direction of Low-Emission Integrated Steelmaking Process

2014 ◽  
pp. 303-316
Author(s):  
S. Jahanshahi ◽  
A. Deev ◽  
N. Haque ◽  
L. Lu ◽  
J. G. Mathieson ◽  
...  
Keyword(s):  
Current Status ◽  
Steelmaking Process ◽  
Low Emission ◽  
Future Direction
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