Numerical Study of Thermocapillary-Buoyancy Convection of Volatile Liquid Layer in an Enclosed Cavity

Xu, Guangyang; Liu, Qiusheng; Qin, Jun; Zhu, Zhiqiang

doi:10.1007/s12217-019-09763-1

Cited by 7 publications

(4 citation statements)

References 43 publications

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“…10 (a) presents a simplified equivalent sketch map of that case. Its corresponding model can be defined in Equation (24). In Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Regarding the CMOS sensor, most of its commercial products have a 90% transmittance and the included angle of optic filter cannot be too large; otherwise this sensor will be regarded as the unqualified product [33]. Based on these facts, we can simulate a series of images by Equation (24), where the reflectivity is set by 0.1 and the included angle belongs to [-5, +5]. Then we can build the relationship between the unified noise frequency spectrum intensity and the processing effect index of denoising method to assess our algorithm.…”

Section: Discussionmentioning

confidence: 99%

“…The coated glasses are used as its two sides so that the object beams and reference beams can pass through these sides. A heating component and a refrigeration component are installed at the top and the bottom of that sealing box, respectively, which can create a non-buoyancy convection environment [24]. And then the temperature gradient field of deionized water can be looked on as a multi-layer and stable fluid distribution.…”

Section: The Evaluation Experiments Of Deionized Water Temperature Estimationmentioning

confidence: 99%

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Interference Stripe Noise Reduction of CMOS Sensor-Based Digital Holographic Measurement System

Liu

Song

et al. 2021

IEEE Photonics J.

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Comparing with the application of charge coupled device (CCD) sensor, a kind of interference stripe noise (ISN) can be observed easily from the complementary metal-oxide-semiconductor (CMOS) sensor-based digital holographic measurement (DHM) system because a series of optic coatings and filters are used in front of that sensor in order to improve its imaging effect. The improper assembly or the micro manufacturing error of these optic components may create the unexpected interference phenomena in the imaging sensor. To reduce that noise, an effective image processing method is developed. On one hand the Laplacian pyramid method is used to highlight the ISN and a cartoon-texture decomposition technique is carried out to remove the additive ISN. On the other hand, an improved Lee filtering is performed to restrain the multiplicative ISN. Extensive experiment results have shown that the image quality can be improved after the ISN reduction and this method is fit for solving a deionized water temperature estimation application where the texture complexity of target image is relatively low.

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“…10 (a) presents a simplified equivalent sketch map of that case. Its corresponding model can be defined in Equation (24). In Fig.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: The Evaluation Experiments Of Deionized Water Temperature Estimationmentioning

confidence: 99%

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Interference Stripe Noise Reduction of CMOS Sensor-Based Digital Holographic Measurement System

Liu

Song

et al. 2021

IEEE Photonics J.

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“…Liu et al [20] found evaporation plays an opposing role in flow stability. Xu et al [21] further developed the numerical model to account for the convection of gas and proves that evaporation improves the stability of thermocapillary-buoyancy convection.…”

Section: Introductionmentioning

confidence: 99%

Thermocapillary Convection of Evaporating Thin Nanofluid Layer in a Rectangular Cavity

Tao,

Liu,

Qin

et al. 2023

Microgravity Sci. Technol.

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Thermocapillary convection of nanofluid with evaporating phase change interface occurs in a variety of industrial processes such as micro/nano fabrication, ink-jet printing, and thin film coatings, etc. Previous studies have mostly focused on the phenomena of thermocapillary convection in pure fluids without phase change. This paper reports the first fundamental experimental work on thermocapillary flow of nanofluid thin liquid layer under effect of evaporation. This research focuses on the behavior of volatile thin nanofluid liquid layer in a rectangular test cell under the effects of horizontal temperature gradient. The buoyancy effect can be ignored inside this thin liquid layer, which is similar to the results in microgravity condition. HEE7200 and HFE7200-Al2O3 nanofluid are used as working fluid to analyze the effect of nanoparticles addition. The results indicate that the linear relationship between the thickness of the liquid layer and the duration of evaporation does not change by nanoparticles addition. HFE7200-Al2O3 nanofluid always has higher evaporation rate than its base fluid in the temperature difference range of 2.98 to 13.92℃. The critical Marangoni number for nanofluid is lower than that of pure fluid, which indicates that nanoparticles addition promotes the flow pattern transition.

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A Similarity Solution for Natural Convection Flow near a Vertical Plate with Thermal Radiation

Jha

Samaila

2020

Microgravity Sci. Technol.

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Numerical Study of Thermocapillary-Buoyancy Convection of Volatile Liquid Layer in an Enclosed Cavity

Cited by 7 publications

References 43 publications

Interference Stripe Noise Reduction of CMOS Sensor-Based Digital Holographic Measurement System

Interference Stripe Noise Reduction of CMOS Sensor-Based Digital Holographic Measurement System

Thermocapillary Convection of Evaporating Thin Nanofluid Layer in a Rectangular Cavity

A Similarity Solution for Natural Convection Flow near a Vertical Plate with Thermal Radiation

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