Intensification of mass transfer processes through the impact of the velocity gradient on hydrodynamics and stability of liquid droplets in a gas flow
| Autor: | Ivan Pavlenko, Vsevolod Ivanovych Sklabinskyi |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Velocity gradient Applied Mathematics General Chemical Engineering 02 engineering and technology General Chemistry Kinematics Mechanics 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Vortex Physics::Fluid Dynamics Circulation (fluid dynamics) 020401 chemical engineering Flow velocity Flow (mathematics) Mass transfer Physics::Atomic and Molecular Clusters 0204 chemical engineering 0210 nano-technology Intensity (heat transfer) |
| Zdroj: | Chemical Engineering Science. 235:116470 |
| ISSN: | 0009-2509 |
| DOI: | 10.1016/j.ces.2021.116470 |
| Popis: | The article investigates the dependencies between the intensity gradient of the gas flow velocity and the circulation intensity in a liquid droplet. The droplet’s hydrodynamics in a gas flow in the counterflow mass transfer apparatus was considered. A mathematical model considering the effect of the circulation flow inside the droplet on mass transfer intensification was developed. It was confirmed that the intensity of radial flow in a droplet depends on the velocity gradient. It was shown how this gradient affects the circulation flow of a liquid inside the droplet and its movement in a vortex gas flow. A system of nonlinear differential equations describing the translational motion of a liquid droplet in a gas flow was developed. The stability region for droplet’s movement was found. Kinematic characteristics of a droplet in a gas flow were obtained. The results allowed increasing the efficiency of mass transfer equipment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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