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Saturday, May 2, 2020 | History

2 edition of Acoustic Analysis of Hydrodynamic Oscillations in the Gentilly-1 Steam Mains. found in the catalog.

Acoustic Analysis of Hydrodynamic Oscillations in the Gentilly-1 Steam Mains.

Atomic Energy of Canada Limited.

Acoustic Analysis of Hydrodynamic Oscillations in the Gentilly-1 Steam Mains.

  • 341 Want to read
  • 23 Currently reading

Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesAtomic Energy of Canada Limited. AECL -- 6176
ContributionsSelander, W.N., Wong, P.Y.
ID Numbers
Open LibraryOL21970468M

@article{osti_, title = {Quad Cities Unit 2 Main Steam Line Acoustic Source Identification and Load Reduction}, author = {DeBoo, Guy and Ramsden, Kevin and Gesior, Roman}, abstractNote = {The Quad Cities Units 1 and 2 have a history of steam line vibration issues. The implementation of an Extended Power Up-rate resulted in significant increases in steam . The hydrodynamic description of the heavy ion collision goes back to Landau (). Hydrodynamic Noise and Bjorken Expansion – p. 12/ Hydrodynamic equations The only nontrivial function is ǫ(τ), and it obeys Acoustic oscillations.


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Acoustic Analysis of Hydrodynamic Oscillations in the Gentilly-1 Steam Mains. by Atomic Energy of Canada Limited. Download PDF EPUB FB2

ACOUSTIC ANALYSIS OF HYDRODYNAMIC "OSCILLATIONS IN THE GENTILLY-1 STEAM MAINS by W.N. Selander and P.Y. Wong ABSTRACT A small amplitude (acoustic) wave equation is used to investigate pres-sure oscillations in the Gentilly-1 primary steam network, in both its existing form, and with the proposed modifications for LaPrade Heavy Water Plant.

A novel method of steam induced cavitation for further improving the efficacy of the cavitational reactor is presented with ample experimental and numerical analysis. This book is addressed at researchers and practicing engineers who would like to get insight into cavitation reactor by: 3. Analysis of the noise characteristics of the ex-core neutron detectors are reported.

As a result characteristics of the global component of the boiling noise and the influence of oscillatory effects in reactor pressure control and steam flow rate Cited by: 7.

Analysis of Hydrodynamic Noise around Acoustic Modem on the AUV Using Hybrid LES-Lighthill Method. Abstract: Acoustic modem is one of the most important sensors on the deep sea AUV. A good performance of the acoustic modem has great effect on the safety and operation of deep sea : Tong Hui Liu, Yan Hui Wang, Zhu Guang.

Hydrodynamic resonation through-flow system 47 dt du ma =F m (6) Fma acoustic Newton force; F F a ma S2 m ma = ⎥ m4 kg (7) m inertial mass of oscillating elements; S l S S l ma ρ ρ. Time-averaged flows as input for the resolvent analysis and validation for the results of the resolvent analysis are obtained by experiments.

We show that in the nonreacting (cold) flow case, the resolvent analysis is capable of predicting the hydrodynamic response to upstream harmonic acoustic Author: Thomas Ludwig Kaiser, Lutz Lesshafft, Kilian Oberleithner.

We report on an experimental study of the hydrodynamic expansion following a nanosecond repetitively pulsed (NRP) discharge in atmospheric pressure air preheated up to Cited by: generation of Acoustic Emission in a hydrodynamic bearing.

It is concluded that the power losses associated which such bearings has a direct influence on the generation of AE. Keywords: Acoustic Emission, Condition monitoring, Hydrodynamic bearing. Introduction Acoustic. Generating hydrodynamic/ acoustic cavitation (Gogate et al.) for a useful purpose encompasses the following energy transformation steps: (1) Burning fuel in boiler.

(2) Expanding the steam in a turbine generator. (3) Using electrical output from the generator to: (a) Pump water through a mechanical constriction.

Keywords: Acoustic Emission, Condition monitoring, Hydrodynamic bearing. Introduction Acoustic Emission (AE) is defined as the range of phenomena that results in the generation. However, the near field contains both incompressible hydrodynamic pressure fluctuations and compressible acoustic ones.

The transmitted sound to the inside of a cabin is generated by oscillations of a window glass and a body surface. These oscillations are induced by hydrodynamic and acoustic pressure fluctuations. Self-sustained hydrodynamic oscillations in lifted jet diffusion flames: origin and control UBAID ALI QADRI, GARY J.

CHANDLER AND MATTHEW P. JUNIPER Department of. Prediction and modeling of these structures are thereby highly wanted for thermo-acoustic prediction models. In this work, we apply hydrodynamic linear stability analysis to the time Cited by:   On the hydrodynamic and acoustic nature of pressure proper orthogonal decomposition modes in the near field of a compressible jet - Volume - Matteo Mancinelli, Cited by: Main Engines: Diesel Engines geared or direct drive, Diesel-Electric, Steam and Gas Turbines Gas turbine-electric.

Frequency range: few Hz-1 KHz Auxiliary Machinery: Noise emission. ATOMIC ENERGY &S& L'ENERGIE ATOMIQUE OF CANADA LIMITED tfi9 DU CANADA LIMITÉE GISMO: A PROGRAM FOR CALCULATING HYDRODYNAMIC OSCILLATIONS IN THE GENTILLY-1 STEAM MAINS.

The main problem related to near field noise measurements is in the difficulty to separate out the acoustic from the hydrodynamic part of the pressure fluctuations (Tinney et al., ).

In fact, these contributions are normally buried by each other in the near field of a hydrodynamic. Thermoacoustic oscillations associated with transverse acoustic modes are routinely encountered in combustion chambers.

While a large literature on this topic exists for rockets, no systematic reviews of transverse oscillations are available for air-breathing systems. In fact, the subject of hydrodynamic limits goes back to the work of the founders J.

Clerk Maxwell and L. Boltzmann, of the kinetic theory of gases. Both checked the consistency of their new – and, at the time, controversial – theory with the well-established laws of fluid in the book Cited by: Scaling of flute-like instruments: an analysis from the point of view of the hydrodynamic instability of the jet Blanc F., Fabre B., Montgermont N., De La Cuadra P., Almeida A.

20th. A field test was performed during the warming-up process of a steam turbine to determine the peak frequencies of the control valve structure’s intensive vibration. Subsequently, DES simulation and acoustic modal analysis were conducted separately to explore the potential coupling between the unsteady flow behavior and intensified by: Abstract.

The complex experimental and calculation investigation of the effect of the arrangement of orifices supplying a working fluid on the amplitude–frequency characteristics of hydrodynamic oscillation Author: R. Ganiev, A. Korneev, O.

Shmyrkov. Sound oscillations in the near field of the open working sections of two different wind tunnels are investigated. It was established by measuring the spectra of pressure fluctuations that the amplitude modulation of oscillations Author: R.

Karavosov, A. Prozorov. This book is designed for a first graduate course in fluid dynamics. It focuses on knowledge and methods that find applications in most branches of fluid mechanics, and aims to supply a 4/5(1).

Abstract: We present a lattice Boltzmann study of the hydrodynamics of a fully resolved squirmer, radius R, confined in a slab of fluid between two no-slip walls. We show that the coupling between hydrodynamics and short-range repulsive interactions between the swimmer and the surface can lead to hydrodynamic trapping of both pushers and pullers at the wall, and to hydrodynamic oscillations.

Instrument ation of the No.1 and No.2 units are shown in Table 2. Test Procedure and Conditions 7. Both of the units were completely stable over a range of normal operating condition.

Boiler dynamics and control in. Acoustic Instabilities in Aerospace Propulsion by Prof. R.I. Sujith, Department of Aerospace Engineering, IIT Madras. Mod Lec Lecture Role of Hydrodynamic Instabilities. On Hydrodynamic and Acoustic Modes on the properties of the hydrodynamic modes of the Pridmore-Brown equation are novel and have not been reported in the literature.

Introduction of modal analysis, our aim being to recall the main. The book then introduces the reader to the dynamics and thermodynamics of suspensions, with acoustic motions providing the main focus in the latter part of the book.

The important acoustic. Traditional hydrodynamic focusing permits faster flow rates by broadening the width of the sample stream. This can be problematic as a wider core may allow more than one cell to pass through the laser at the same time (Figure 2B).Acoustic.

Overview of acoustic-assisted hydrodynamic focusing employed in the Attune NxT Flow Cytometer. Acoustic technology maximizes quality and time Traditional hydrodynamic focusing permits faster flow rates by broadening the width of the sample stream.

Coolant Flow Instabilities in Power Equipment synthesizes results from instability investigations around the world, presenting an analysis and generalization of the published technical literature. The authors include individual examples on flow stability in various types of equipment, including boilers, reactors, steam.

Self-sustained hydrodynamic oscillations in lifted jet diffusion flames: origin and control Self-sustained hydrodynamic oscillations in lifted jet diffusion flames: origin and control.

Our linear analysis. The existence of hydrodynamic cavitation in the flow of de-ionized water through micro-Venturis has been witnessed in the form of traveling bubble cavitation and fully Cited by:   Besides 3D-HF, acoustic perturbation can also enhance mixing.

The acoustic oscillation of the microfluidic channel can cause liquid motion or vortices, which are known as acoustic streaming. 56 Even at micrometer scale, turbulence can still be induced actively by acoustic oscillation, resulting in fast mixing.

Therefore, we hypothesized that acoustic Cited by: Hydrodynamic analysis of sound wave propagation in a reactive mixture con ned between two parallel plates Denize Kalempaa), Adriano W.

Silvab y, Ana Jacinta Soaresc)z, File Size: KB. where f = ω/2π and T is the duration of the bubble oscillation (or the duration of the driving acoustic pulse). The dimensionless quantity W (f, R 0) has the sense of time-averaged oscillation power at a given frequency f for a bubble with equilibrium radius R oscillation Cited by: Hydrodynamic Noise for the 27th ITTC to address the following activities: (1) Create an overview of the characteristics of hydrodynamic noise sources (including machinery and equipment, e.g.

sonars) and its influence to marine environment. (2) Create an overview of existing national and international regulations regarding hy-drodynamic File Size: 1MB.

Acoustic Fluid-Structure Interaction Modelling of Gravity Dams in the Frequency Domain Anna De Falco*1, Matteo Mori2 and Giacomo Sevieri3 1Energy, Systems, Territory and.

In the hydrodynamic analysis of the flow, the flow field can be predicted by solving the continuity and momentum equations (Equations 1 & 2) [18]. where ui are velocity components of water, ρ is density, P is pressure, and τ is the shear stress tensor. For the acoustic analysis. The first study on the sensitivity analysis of a ship’s maneuverability was conducted by Hwang ().

Hwang defined the sensitivity index as the maximum difference of the state variable changes by changing the value of the hydrodynamic derivatives, and investigated their importance on maneuvering based on the sensitivity by: 1.The sea valve is a critical unit in the seawater pipelines onboard.

Its mainly used to control and adjust the flux of seawater. In the practical use, the vibration and sound level of a kind of valve is proved to be too high to maintain the acoustic Author: Hui Jin, Xiang Zhu, Bo Wen Deng, Guan Jun Zhang, Jun Hu.Main steam safety relief valves (SRVs) are important equipment in boiling water reactor plants, so monitoring of leakage and valve opening of SRVs is also important.

To detect leakage and .