Journal ArticleDOI
Non-linear dynamics of a two phase flow system in an evaporator: The effects of (i) a time varying pressure drop (ii) an axially varying heat flux
TLDR
In this paper, the authors study the phenomena of density wave oscillations (DWO) in a vertical heated channel and use the homogeneous equilibrium model to simulate the flow in the two-phase region.About:
This article is published in Nuclear Engineering and Design.The article was published on 1997-12-04. It has received 25 citations till now. The article focuses on the topics: Heat flux & Pressure drop.read more
Citations
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Journal ArticleDOI
Two-phase flow instabilities: A review
TL;DR: An updated review of two-phase flow instabilities including experimental and analytical results regarding density-wave and pressure-drop oscillations, as well as Ledinegg excursions, is presented in this article.
Journal ArticleDOI
A characteristics-based implicit finite-difference scheme for the analysis of instability in water cooled reactors
Goutam Dutta,Jagdeep B. Doshi +1 more
TL;DR: In this article, a transient thermal hydraulic model is developed with a characteristics-based implicit finite-difference scheme to solve the nonlinear mass, momentum and energy conservation equations in a time-domain.
Journal ArticleDOI
Lumped parameterization of boiling channel—Bifurcations during density wave oscillations
TL;DR: In this paper, the authors analyze DWO in several boiling channels with varying lengths (Froude number) adopting moving node scheme and fixed node scheme (FNS) to evaluate the capability of the methods.
Journal ArticleDOI
Nonlinear analysis of nuclear coupled density wave instability in time domain for a boiling water reactor core undergoing core-wide and regional modes of oscillations
Goutam Dutta,Jagdeep B. Doshi +1 more
TL;DR: In this article, a nuclear coupled thermal-hydraulic model was developed to simulate core-wide and regional stability analysis in time domain within the limitation of desktop research facility for a boiling water reactor subjected to operational transients.
Journal ArticleDOI
Effect of inlet pressure and temperature on density wave oscillations in a horizontal channel
TL;DR: In this article, the period of density wave oscillations in an uniformly heated horizontal test section is experimentally investigated for a 5mm I.D. pipe where R134a is used as working fluid.
References
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Journal ArticleDOI
Measuring the Strangeness of Strange Attractors
TL;DR: In this paper, the correlation exponent v is introduced as a characteristic measure of strange attractors which allows one to distinguish between deterministic chaos and random noise, and algorithms for extracting v from the time series of a single variable are proposed.
BookDOI
Finite Difference Methods in Heat Transfer
TL;DR: Finite Difference Methods in Heat Transfer as mentioned in this paper presents a step-by-step delineation of finite difference methods for solving engineering problems governed by ordinary and partial differential equations, with emphasis on heat transfer applications.
Journal ArticleDOI
Proper choice of the time delay for the analysis of chaotic time series
Wolfgang Liebert,H. G. Schuster +1 more
TL;DR: In this article, the first minimum of the logarithm of the generalized correlation integral C1(τ) provides an easily evaluable criterion for the proper choice of the time delay τ that is needed to reconstruct the trajectory in phase space from chaotic scalar time series data.
Journal ArticleDOI
An Experimental Investigation of the Thermally Induced Flow Oscillations in Two-Phase Systems
P. Saha,Mamoru Ishii,N. Zuber +2 more
TL;DR: In this article, an experimental study on the onset of thermally induced two-phase flow oscillations has been carried out in a uniformly heated boiling channel using Freon-113 as the operating fluid.