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Drying of a Single Suspension Droplet in Suspension Plasma Spray : = Numerical and Experimental Study.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Drying of a Single Suspension Droplet in Suspension Plasma Spray :/
其他題名:	Numerical and Experimental Study.
作者:	Javid, Seyyed Morteza.
面頁冊數:	1 online resource (142 pages)
附註:	Source: Dissertations Abstracts International, Volume: 83-01, Section: B.
Contained By:	Dissertations Abstracts International83-01B.
標題:	Mechanical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28264999click for full text (PQDT)
ISBN:	9798522942977

Drying of a Single Suspension Droplet in Suspension Plasma Spray : = Numerical and Experimental Study.
Javid, Seyyed Morteza.

Drying of a Single Suspension Droplet in Suspension Plasma Spray :Numerical and Experimental Study. - 1 online resource (142 pages)

Source: Dissertations Abstracts International, Volume: 83-01, Section: B.

Thesis (Ph.D.)--University of Toronto (Canada), 2021.

Includes bibliographical references

Suspension plasma spray is a powerful coating technique for depositing high-quality thermal barrier coatings with promising mechanical and physical properties while taking advantage of the well-established atmospheric plasma spray process. In this process, fine ceramic particles are suspended in liquids such as water or ethanol before injection into a plasma jet. The heat from plasma evaporates the carrier liquid of injected suspension droplets and leads to an agglomeration of the particles. The agglomeration process plays a crucial role in the state of particles before impacting a substrate and, consequently, the mechanical properties of the coating. In this work, numerical models for simulating different cases of drying of a single suspension droplet in processes with a high evaporation rate like suspension plasma spray are devised. The models use a Lagrangian method for tracking suspended solid particles and the Eulerian method for the liquid phase. These models not only demonstrate droplet distortion during evaporation but also predict solid particles behavior suspended in the droplet. The numerical models can describe consecutive states of the agglomeration process, including droplet shrinkage, particle accumulation on droplet surface, and buckling. Also, the numerical analysis sheds more light on the complex phenomena of buckling, especially the interaction of the droplet interface and suspended solid particles, and different types of suspension droplet buckling. The numerical results reveal that the role of capillary forces in the shape of agglomerated particles is significant. It is found that particle-induced surface pressure drives the buckling of the suspension droplet. It is also shown that the particle-induced surface pressure reaches a threshold value at the onset of buckling and overcomes surface tension. Finally, the models have been validated by comparing the simulation results with designed experiments. The numerical results are in good agreement with the experimental ones, both qualitatively and quantitatively.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798522942977Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

BucklingIndex Terms--Genre/Form:

542853
Electronic books.

Drying of a Single Suspension Droplet in Suspension Plasma Spray : = Numerical and Experimental Study.
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520 $a Suspension plasma spray is a powerful coating technique for depositing high-quality thermal barrier coatings with promising mechanical and physical properties while taking advantage of the well-established atmospheric plasma spray process. In this process, fine ceramic particles are suspended in liquids such as water or ethanol before injection into a plasma jet. The heat from plasma evaporates the carrier liquid of injected suspension droplets and leads to an agglomeration of the particles. The agglomeration process plays a crucial role in the state of particles before impacting a substrate and, consequently, the mechanical properties of the coating. In this work, numerical models for simulating different cases of drying of a single suspension droplet in processes with a high evaporation rate like suspension plasma spray are devised. The models use a Lagrangian method for tracking suspended solid particles and the Eulerian method for the liquid phase. These models not only demonstrate droplet distortion during evaporation but also predict solid particles behavior suspended in the droplet. The numerical models can describe consecutive states of the agglomeration process, including droplet shrinkage, particle accumulation on droplet surface, and buckling. Also, the numerical analysis sheds more light on the complex phenomena of buckling, especially the interaction of the droplet interface and suspended solid particles, and different types of suspension droplet buckling. The numerical results reveal that the role of capillary forces in the shape of agglomerated particles is significant. It is found that particle-induced surface pressure drives the buckling of the suspension droplet. It is also shown that the particle-induced surface pressure reaches a threshold value at the onset of buckling and overcomes surface tension. Finally, the models have been validated by comparing the simulation results with designed experiments. The numerical results are in good agreement with the experimental ones, both qualitatively and quantitatively.
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650 4 $a Materials science. $3 543314
650 4 $a Fluid mechanics. $3 528155
650 4 $a Plasma physics. $3 3175417
650 4 $a Mechanical properties. $3 3549505
650 4 $a Plasma. $3 877619
650 4 $a Evolution. $3 532919
650 4 $a Protective coatings. $3 685948
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650 4 $a Energy. $3 876794
650 4 $a Heat conductivity. $3 3681489
650 4 $a Gas flow. $3 3487726
650 4 $a Contact angle. $3 3320098
650 4 $a Sintering. $3 814676
650 4 $a Heat transfer. $3 3391367
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650 4 $a Velocity. $3 3560495
650 4 $a Raw materials. $3 648907
650 4 $a Research methodology. $3 3559994
650 4 $a Viscosity. $3 1050706
650 4 $a Temperature. $3 711968
650 4 $a Particle size. $3 3564817
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650 4 $a Physical properties. $3 3564184
650 4 $a Morphology. $3 591167
653 $a Buckling
653 $a CFD
653 $a Evaporation
653 $a Multiphase Flow
653 $a Numerical Modeling
653 $a Suspension Plasma Spray
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