English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Binary droplet collisions are of importance in a variety of practicalapplications comprising dispersed two-phase flows. The background of ourresearch is the prediction of properties of particulate products formed inspray processes. To gain a more thorough understanding of the elementarysub-processes inside a spray, experiments and direct numerical simulations ofbinary droplet collisions are used. The aim of these investigations is todevelop semi-analytical descriptions for the outcome of droplet collisions.Such collision models can then be employed as closure terms for scale-reducedsimulations. In the present work we focus on the collision of droplets ofdifferent liquids. These kinds of collisions take place in every spray dryingprocess when droplets with different solids contents collide in recirculationzones. A new experimental method has been developed allowing for high spatialand time resolved recordings via Laser-induced fluorescence. The resultsobtained with the proposed method will be compared with DNS simulations. Theviscosities of the droplets are different whereas the interfacial tension anddensity are equal. The liquids are miscible and no surface tension is actingbetween the two liquids. Our intention is to discover elementary phenomenacaused by the viscosity ratio of the droplets.

Experiments and Direct Numerical Simulations of binary collisions of miscible liquid droplets with different viscosities