Turbulent Surface Pressure Field in Low Speed Flow

2014 ◽  
pp. 91-100
Author(s):  
Stéphane Caro ◽  
Vincent Cotoni ◽  
Phil Shorter ◽  
Fred Mendonça
Keyword(s):  
Surface Pressure ◽  
Pressure Field ◽  
Low Speed ◽  
Speed Flow

Hot-wire probes in low speed flow

1979 ◽  
Vol 18 ◽  
pp. 271-323 ◽  
Author(s):  
J.-D. Vagt
Keyword(s):  
Hot Wire ◽  
Low Speed ◽  
Speed Flow

scholarly journals Software Sensor for Airflow Modulation and Noise Detection by Cyclostationary Tools

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2414
Author(s):  
Mohamad Alkoussa Dit Albacha ◽  
Laurent Rambault ◽  
Anas Sakout ◽  
Kamel Abed Meraim ◽  
Erik Etien ◽  
...  
Keyword(s):  
Flow Rate ◽  
Physical Phenomenon ◽  
Experimental Setup ◽  
Noise Detection ◽  
Air Flow Rate ◽  
Audio Signals ◽  
Software Sensor ◽  
Low Speed ◽  
Speed Flow ◽  
Noise Disturbances

The paper presents tools to model low speed airflow coming from a turbulent machine. This low speed flow have instabilities who generate noise disturbances in the environment. The aim of the study proposed in this paper, is the using of cyclostationary tools with audio signals to model this airflow and detect the noisy frequencies to eliminate this noise. This paper also deals with the extraction in real time of the frequency corresponding to the noise nuisance. This extraction makes it possible to build a software sensor. This software sensor can be used to estimate the air flow rate and also to control a future actuator which will reduce the intensity of the noise nuisance. This paper focuses on the characteristic of the sound signal (property of cyclostationarity) and on the development of a software sensor. The results are established using an experimental setup representative of the physical phenomenon to be characterised.

scholarly journals Computation of the Jet-Wake Flow Structure in a Low Speed Centrifugal Impeller

1988 ◽  
Author(s):  
B. L. Lapworth ◽  
R. L. Elder
Keyword(s):  
Three Dimensional ◽  
Simple Algorithm ◽  
Design Flow ◽  
Wake Flow ◽  
Staggered Grid ◽  
Centrifugal Impeller ◽  
Low Speed ◽  
Flow Equations ◽  
System A ◽  
Speed Flow

The low speed flow through the shrouded de-Havilland Ghost centrifugal impeller is computed using an incompressible elliptic calculation procedure. The three dimensional viscous flow equations are solved using the SIMPLE algorithm in an arbitrary generalised coordinate system. A non-staggered grid arrangement is implemented in which pressure oscillations are eliminated using an amended pressure correction scheme. Flow computations are performed at ‘nominal’ low speed design and above design flow rates, and (on the coarse grids used in the calculations) good agreement is obtained with the experimentally observed jet-wake structure of the flow.

Modal Analysis of the Surface Pressure Field Around a Hemispherical Turret using Pressure Sensitive Paint

2018 ◽  
Author(s):  
Nicholas G. De Lucca ◽  
Stanislav Gordeyev ◽  
Jacob J. Morrida ◽  
Eric J. Jumper ◽  
Donald J. Wittich
Keyword(s):  
Modal Analysis ◽  
Surface Pressure ◽  
Pressure Field ◽  
Pressure Sensitive Paint ◽  
Pressure Sensitive

Forcing function models for structures excited by low‐speed flow

2000 ◽  
Vol 108 (5) ◽  
pp. 2451-2451
Author(s):  
Y. F. Hwang ◽  
S. A. Hambric
Keyword(s):  
Low Speed ◽  
Forcing Function ◽  
Speed Flow ◽  
Function Models

scholarly journals POD/ARMA reconstruction of the surface pressure field around a low rise structure

2001 ◽  
Vol 2001 (89) ◽  
pp. 509-536
Author(s):  
S Kho ◽  
C Baker ◽  
R Hoxey ◽  
Shoichi SHIMOMURA ◽  
Takeshi OHKUMA ◽  
...  
Keyword(s):  
Surface Pressure ◽  
Pressure Field
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