Nucleation and flashing in nozzles—2. Comparison with experiments using a five-equation model for vapor void development

Blinkov, V. N.; Jones, O.C.; Nigmatulin, B. I.

doi:10.1016/0301-9322(93)90072-3

Cited by 118 publications

(25 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The cross-section averaged bubble number density increases steeply in the nucleation region and then remains almost constant in the stable two-phase region. The models described in [16,21] are chosen for the computation of the heterogeneous nucleation rate at the walls and in the bulk. The contribution of bulk nucleation is found to be trivial.…”

Section: Simulation Resultsmentioning

confidence: 99%

Possibilities and Limitations of CFD Simulation for Flashing Flow Scenarios in Nuclear Applications

Liao

Lucas

2017

Energies

View full text Add to dashboard Cite

Abstract:The flashing phenomenon is relevant to nuclear safety analysis, for example by a loss of coolant accident and safety release scenarios. It has been studied intensively by means of experiments and simulations with system codes, but computational fluid dynamics (CFD) simulation is still at the embryonic stage. Rapid increasing computer speed makes it possible to apply the CFD technology in such complex flow situations. Nevertheless, a thorough evaluation on the limitations and restrictions is still missing, which is however indispensable for reliable application, as well as further development. In the present work, the commonly-used two-fluid model with different mono-disperse assumptions is used to simulate various flashing scenarios. With the help of available experimental data, the results are evaluated, and the limitations are discussed. A poly-disperse method is found necessary for a reliable prediction of mean bubble size and phase distribution. The first attempts to trace the evolution of the bubble size distribution by means of poly-disperse simulations are made.

show abstract

Section: Simulation Resultsmentioning

confidence: 99%

Possibilities and Limitations of CFD Simulation for Flashing Flow Scenarios in Nuclear Applications

Liao

Lucas

2017

Energies

View full text Add to dashboard Cite

show abstract

“…In order get the purpose, the models of bubble formation and growth are needed. On the basis of the mass, momentum, and energy conservation laws, Elias and Chambre [16], Richter [17], Ardron [18], Shin and Jones [19], and Blinkov et al [20] respectively established different two-phase fluid models to investigate the critical flow in nozzles or pipes. Pinhasi [21] gave a detailed review of the modeling of flashing two-phase flow.…”

Section: Introductionmentioning

confidence: 99%

Critical flashing flow in convergent–divergent nozzles with initially subcooled liquid

Liu¹,

Chen²,

Zhi-jiu³

2008

International Journal of Thermal Sciences

View full text Add to dashboard Cite

“…Importantly, many of these systems must be treated as one-dimensional with abrupt area changes where the flow undergoes rapid expansion or contraction (Blinkov et al, 1993) often leading to a phase change.…”

Section: Introductionmentioning

confidence: 99%

Simulation of two-phase flow through ducts with discontinuous cross-section

2015

View full text Add to dashboard Cite

The development of an AUSM+-up based scheme for simulating transient single or two-phase flows through ducts with discontinuous or abrupt changes in area is presented. The non-conservative terms in the governing equations arising from the variation in the duct area are discretised to maintain exactly states at rest. An additional scaling of the pressure based dissipation is added to ensure numerical stability across the area change. The extensive application of the scheme to ideal gas and two-phase CO 2 based on the Homogeneous Equilibrium Model (HEM) for both shock tube and other transient flow problems indicate the scheme's capability to resolve such problems accurately and robustly.

show abstract

Nucleation and flashing in nozzles—2. Comparison with experiments using a five-equation model for vapor void development

Cited by 118 publications

References 10 publications

Possibilities and Limitations of CFD Simulation for Flashing Flow Scenarios in Nuclear Applications

Possibilities and Limitations of CFD Simulation for Flashing Flow Scenarios in Nuclear Applications

Critical flashing flow in convergent–divergent nozzles with initially subcooled liquid

Simulation of two-phase flow through ducts with discontinuous cross-section

Contact Info

Product

Resources

About