Experimental study on sodium droplet combustion and spatial temperature distribution characteristics

Qiao, Yan-Yu; Ma, Yao-Long; Zhang, Zhigang; Liu, Chongchong

doi:10.1080/00223131.2018.1470946

Cited by 4 publications

(5 citation statements)

References 10 publications

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“…𝐹 𝜌 𝑓 ℎ 𝑓 (6) where: 𝑘 𝑚𝑛 could be evaluated from the Bessel function of the first kind and 𝑛 corresponds to the number of diametral lines with no-deflection, R is the membrane radius, F is…”

Section: Analytical Formulationmentioning

confidence: 99%

“…The modes shape of the oscillating membrane can be predicted from Eq (6). The oscillating membrane is a two-dimensional elastic body and the properties are provided in Table 1.…”

Section: Analytical Formulationmentioning

confidence: 99%

“…A liquid droplet behavior on hydrophobic surfaces remains important in various applications including self-cleaning, 1,2,3 drug delivery, 4 painting, 5 combustions, 6 and similar. Depending on the surface wetting state, liquid droplets can slide, roll, and roll/slide over the surface.…”

Section: Introductionmentioning

confidence: 99%

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Liquid droplet impact on a sonically excited thin membrane

et al. 2022

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Section: Analytical Formulationmentioning

confidence: 99%

“…The modes shape of the oscillating membrane can be predicted from Eq (6). The oscillating membrane is a two-dimensional elastic body and the properties are provided in Table 1.…”

Section: Analytical Formulationmentioning

confidence: 99%

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Liquid droplet impact on a sonically excited thin membrane

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Liquid Droplet Impact on a Sonically Excited Thin Membrane

Abubakar

Yilbaş

Al‐Qahtani

et al. 2021

Preprint

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Impacting droplet characteristics on hydrophobic surfaces can be altered by introducing surface oscillations. Impacting water droplet contact duration, spreading, retraction, and rebounding behaviors are examined at various sonic excitation frequencies of the hydrophobic membrane. Membrane oscillation and droplet behavior are analyzed by utilizing a high-speed camera. The restitution coefficient and membrane dynamics are formulated and the findings are compared with those of the experiments. It is found that the mode of membrane oscillation changes as the sonic excitation frequency is changed. The droplet spreading and retraction rates reduce while rebound height and restitution coefficient increase at a sonic excitation frequency of 75 Hz. However, further increase of the excitation frequency results in reduced rebound height because of increased energy dissipation on the impacted surface. The droplet contact (transition time) duration reduces as the excitation frequency increases. Increasing droplet Weber number enhances the droplet contact period on the membrane, which becomes more apparent at low frequencies of sonic excitation.

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“…Arain et al 9 and Shahid et al 10 independently considered the inclusion of activation energy in the concentration equation of both nanoparticles of Carreau non‐Newtonian fluid and magnetohydrodynamic nanofluid flow, respectively. Qiao et al 11 investigated the sodium droplet characteristics under the initial conditions of a temperature of sodium droplets, oxygen concentration, and ambient temperature. The conclusion drawn from the study revealed that sodium droplet temperature starts increasing as the gas is supplied, and the peak sodium droplet combustion temperature is higher than the spatial temperature.…”

Section: Introductionmentioning

confidence: 99%

Significance of thermal radiation and thermo‐physical properties on the modeling of sodium droplet explosion with different reaction rates

Sunday

Dennis

2021

Heat Trans

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The temperature of explosive substances (i.e., coolants) in the nuclear industries are necessary to ensure safety. The present study is focused on the analysis of the significance of thermal radiation and variable thermo‐physical properties on thermal stability characteristics of sodium droplet use as a coolant in the design of nuclear facilities. It is pertinent to note that the inclusion of heat loss by convection and heat generated by the reaction is based on Newton's law of cooling and Arrhenius kinetic equation, respectively, with the P‐1 approximation radiative heat loss model. The emerging mathematical model is a highly nonlinear ordinary differential equation. The model is solved using the classical fourth‐order Runge‐Kutta scheme. Consequently, the analysis of the results of the present study reveals the quantitative impacts of the thermal radiative model and variable thermo‐physical properties on the temperature of the sodium droplet. The results reveal that the combined inclusion of variable thermophysical properties and thermal radiation significantly reduces the droplet temperature. The temperature of the coolant increases with an increase in the reactants' numerical exponent and thermal radiation reduces the temperature of the sodium droplet at the initial temperature with the reverse effect at free stream temperature.

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Experimental study on sodium droplet combustion and spatial temperature distribution characteristics

Cited by 4 publications

References 10 publications

Liquid droplet impact on a sonically excited thin membrane

Liquid droplet impact on a sonically excited thin membrane

Liquid Droplet Impact on a Sonically Excited Thin Membrane

Significance of thermal radiation and thermo‐physical properties on the modeling of sodium droplet explosion with different reaction rates

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