Analysis of liquid surface deformation and breakups using three-dimensional high-speed data recorded with a single camera

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU146764" target="_blank" >RIV/00216305:26210/22:PU146764 - isvavai.cz</a>

Result on the web

<a href="https://aip.scitation.org/doi/pdf/10.1063/5.0130498" target="_blank" >https://aip.scitation.org/doi/pdf/10.1063/5.0130498</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0130498" target="_blank" >10.1063/5.0130498</a>

Result language

angličtina

Original language name

Analysis of liquid surface deformation and breakups using three-dimensional high-speed data recorded with a single camera

Original language description

Analyzing the deformation of liquid surfaces to better understand, for example, wave generation in oceanology or the formation of industrial spray systems, requires a series of three-dimensional snapshots that temporally resolve such events. This requirement is challenging, especially when applied to transient liquid surfaces that deform rapidly. A technique called Fringe Projection-Laser Induced Fluorescence (FP-LIF), devel-oped by the authors, generates three-dimensional surface reconstructions of irregular liquid structures using snapshots recorded via a single camera only. In this article, FP-LIF is associated, for the first time, with a high-speed detection system, allowing the three-dimensional visualiza-tion of liquid surface deformation and breakups at a kHz frame rate. The technique is applied here at 20 kHz for imaging the complete develop-ment of a wide hollow-cone water spray and analyzing, in detail, the transition from early injection to stabilization. The three-dimensional image series covered a total time window of 300 ms (6000 frames). It is observed during the first 100 ms that the initial liquid jet deforms into a stable tulip shaped sheet. Then, between 100 and 180 ms, the tulip shape gradually grows until its stabilization corresponds to the final conical shaped sheet. Once the stabilization is reached, the fluctuation of the final spray-angle & mdash;ranging from 40 degrees to 50 degrees & mdash;is extracted by post-processing 1000 consecutive three-dimensional images, providing a detailed analysis of the radial symmetry of the spray over time and three-dimensional space. The results provided in this article are relevant for the validation of Computational Fluid Dynamics spray models.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/LTAIN19044" target="_blank" >LTAIN19044: Development of energy efficient twin-fluid atomizer for effective post combustion CO2 and NOx removal</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

PHYSICS OF FLUIDS

ISSN

1070-6631

e-ISSN

1089-7666

Volume of the periodical

34

Issue of the periodical within the volume

12

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

1-11

UT code for WoS article

000899019900003

EID of the result in the Scopus database

2-s2.0-85144632182