Rayleigh-Taylor Instability: A Status Review of Experimental Designs and Measurement Diagnostics

Banerjee, Arindam

doi:10.1115/1.4048349

Cited by 34 publications

(23 citation statements)

References 132 publications

(260 reference statements)

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“…[10] and [11] for a review of these topics). A parallel review of advances in diagnostic techniques and experiments on RT instability and mixing complements this review [9]. This paper is organized as follows.…”

Section: Introductionmentioning

confidence: 94%

“…Early experiments mainly used visualization techniques to infer the mixing layer width. Later, improved diagnostics coupled with methods to track each fluid enabled measurements of the degree of molecular mixing [9]: where Hðz; tÞ ¼ 0 (corresponding to / 1 / 2 ¼ 0), the two fluids are completely segregated, and where Hðz; tÞ ¼ 1 (corresponding to / 1 / 2 ¼ / 1 / 2 ), they are completely molecularly mixed. With the advent of direct numerical simulation (DNS) (see Sec.…”

Section: Measured Experimental and Calculated Simulation Quantitiesmentioning

confidence: 99%

“…As discussed in the review of experiments [9], there are several classes of designs that can be generically categorized as tank and channel experiments. As experimental designs have evolved, additional flow diagnostics were implemented and calibrated in order to measure additional statistical quantities.…”

Section: Experimental Approaches and Issues For Simulation And Modelimentioning

confidence: 99%

“…(see Ref. [9] for additional discussion). RT flows with larger density contrasts (larger At) lead to a wider mixing layer.…”

Section: Introductionmentioning

confidence: 99%

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Progress on Understanding Rayleigh–Taylor Flow and Mixing Using Synergy Between Simulation, Modeling, and Experiment

Schilling

2020

Journal of Fluids Engineering

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Simultaneous advances in numerical methods and computing, theoretical techniques, and experimental diagnostics have all led independently to better understanding of Rayleigh-Taylor (RT) instability, turbulence, and mixing. In particular, experiments have provided significant motivation for many simulation and modeling studies, as well as validation data. Numerical simulations, in turn, have also provided data not currently measurable or very difficult to measure accurately in RT unstable flows. Thus, simulations have motivated new measurements in this class of buoyancy-driven flows. This overview discusses simulation and modeling studies synergistic with experiments and examples of how experiments have motivated simulations and models of RT instability, flow, and mixing. First, a brief summary of measured experimental and calculated simulation quantities, of experimental approaches, and of issues and challenges in the simulation and modeling of RT experiments is presented. Implicit large-eddy, direct numerical, and large-eddy simulations validated using RT experimental data are then discussed. This is followed by a discussion of modeling using analytical, modal, buoyancy-drag, and turbulent transport models of RT mixing experiments. The discussion will focus on three-dimensional RT mixing arising from multimode perturbations. Finally, this review concludes with a perspective on future simulation, modeling, and experimental directions for further research. Research in simulation and modeling of RT unstable flows, coupled with experiments, has made significant progress over the past several decades. This overview serves as an opportunity to both discuss progress and to stimulate future research on simulation and modeling of this class of hydrodynamically-unstable turbulent flows.

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Section: Introductionmentioning

confidence: 94%

Section: Measured Experimental and Calculated Simulation Quantitiesmentioning

confidence: 99%

Section: Experimental Approaches and Issues For Simulation And Modelimentioning

confidence: 99%

“…(see Ref. [9] for additional discussion). RT flows with larger density contrasts (larger At) lead to a wider mixing layer.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Progress on Understanding Rayleigh–Taylor Flow and Mixing Using Synergy Between Simulation, Modeling, and Experiment

Schilling

2020

Journal of Fluids Engineering

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“…Besides, on astronomical timescales, it occurs within Type-1a supernovae and in certain geological processes associated with volcanic activity over viscous time scales (see Refs. [7][8][9][10][11][12]). However, in the astrophysical context (e.g., Ref.…”

Section: Introductionmentioning

confidence: 99%

Rayleigh–Taylor Instability With Varying Periods of Zero Acceleration

Aslangil

Farley

Lawrie

et al. 2020

Journal of Fluids Engineering

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We present our findings from a numerical investigation of the acceleration-driven Rayleigh-Taylor Instability, modulated by varying periods without an applied acceleration field. It is well known from studies on shock-driven Richtmyer-Meshkov instability that mixing without external forcing grows with a scaling exponent as ~ t^{0.20-0.28}. When the Rayleigh-Taylor Instability is subjected to varying periods of "zero" acceleration, the structural changes to the mixing layer remain remarkably small. After the acceleration is re-applied, the mixing layer quickly resumes the profile of development it would have had if there had been no intermission. This behaviour contrasts in particular with the strong sensitivity that is found to other variable acceleration profiles examined previously in the literature.

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Intensification of the Separation of Isothermal Ternary Gas Mixtures Containing Carbon Dioxide

et al. 2021

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The possibility of intensifying the separation of isothermal ternary gas mixtures containing carbon dioxide was studied experimentally. It was shown that the preferential transfer of carbon dioxide requires the system to be initially diffusively unstable, and the interdiffusion coefficients of mixing components can either differ significantly from each other or be close in value. A linear analysis of the stability of isothermal ternary gas mixtures containing carbon dioxide for a flat vertical channel and a cylindrical channel of finite height was performed. Comparison of the results of the numerical study with experimental data showed qualitative coherency.

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Rayleigh-Taylor Instability: A Status Review of Experimental Designs and Measurement Diagnostics

Cited by 34 publications

References 132 publications

Progress on Understanding Rayleigh–Taylor Flow and Mixing Using Synergy Between Simulation, Modeling, and Experiment

Progress on Understanding Rayleigh–Taylor Flow and Mixing Using Synergy Between Simulation, Modeling, and Experiment

Rayleigh–Taylor Instability With Varying Periods of Zero Acceleration

Intensification of the Separation of Isothermal Ternary Gas Mixtures Containing Carbon Dioxide

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