Disruption of colliding liquid droplets with different surface geometries

Результат исследований: Материалы для журналаСтатья

Выдержка

Principal differences are shown as to the number and size of newly formed droplets after the collision of spheres, disks, and ellipsoids as well as critical Weber numbers sufficient for intense atomization. The typical breakup times differ for the sphere – sphere, sphere – disk, and sphere – ellipsoid systems within 5–7%, and the number and total surface areas of post-collision droplets in such systems vary several-fold (sometimes, by more than an order of magnitude). We compare three droplet disruption modes: disintegration of a bridge between variously shaped droplets, inflation of a target droplet (usually a disk or ellipsoid) by a projectile droplet (mostly sphere), and aerosol formation induced by the axisymmetric collision of liquid fragments with similar initial shapes. Conditions are determined for the many-fold and, on the contrary, insignificant increase in the number of droplets in an air flow due to their collisions in the breakup mode.

Язык оригиналаАнглийский
Страницы (с-по)526-534
Число страниц9
ЖурналPowder Technology
Том355
DOI
СостояниеОпубликовано - 1 окт 2019

Отпечаток

Geometry
Liquids
Disintegration
Atomization
Projectiles
Aerosols
Air

ASJC Scopus subject areas

  • Chemical Engineering(all)

Цитировать

Disruption of colliding liquid droplets with different surface geometries. / Piskunov, M. V.; Shlegel, N. E.; Strizhak, P. A.

В: Powder Technology, Том 355, 01.10.2019, стр. 526-534.

Результат исследований: Материалы для журналаСтатья

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AU - Shlegel, N. E.

AU - Strizhak, P. A.

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N2 - Principal differences are shown as to the number and size of newly formed droplets after the collision of spheres, disks, and ellipsoids as well as critical Weber numbers sufficient for intense atomization. The typical breakup times differ for the sphere – sphere, sphere – disk, and sphere – ellipsoid systems within 5–7%, and the number and total surface areas of post-collision droplets in such systems vary several-fold (sometimes, by more than an order of magnitude). We compare three droplet disruption modes: disintegration of a bridge between variously shaped droplets, inflation of a target droplet (usually a disk or ellipsoid) by a projectile droplet (mostly sphere), and aerosol formation induced by the axisymmetric collision of liquid fragments with similar initial shapes. Conditions are determined for the many-fold and, on the contrary, insignificant increase in the number of droplets in an air flow due to their collisions in the breakup mode.

AB - Principal differences are shown as to the number and size of newly formed droplets after the collision of spheres, disks, and ellipsoids as well as critical Weber numbers sufficient for intense atomization. The typical breakup times differ for the sphere – sphere, sphere – disk, and sphere – ellipsoid systems within 5–7%, and the number and total surface areas of post-collision droplets in such systems vary several-fold (sometimes, by more than an order of magnitude). We compare three droplet disruption modes: disintegration of a bridge between variously shaped droplets, inflation of a target droplet (usually a disk or ellipsoid) by a projectile droplet (mostly sphere), and aerosol formation induced by the axisymmetric collision of liquid fragments with similar initial shapes. Conditions are determined for the many-fold and, on the contrary, insignificant increase in the number of droplets in an air flow due to their collisions in the breakup mode.

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KW - Droplet surface area

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KW - Number of post-collision fragments

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