Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium

The paper presents the experimental research findings for the integral characteristics of processes developing when two-phase liquid droplets collide in a heated gas medium. The experiments were conducted in a closed heat exchange chamber space filled with air. The gas medium was heated to 400–500 °...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Pavel Tkachenko, Nikita Shlegel, Pavel Strizhak
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	two-phase droplets vapor bubbles high-temperature gas medium interaction collision regimes secondary fragments Science Q Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/80ac9f88c7ea424ebfacd4f7fbab582e
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:80ac9f88c7ea424ebfacd4f7fbab582e
record_format	dspace
spelling	oai:doaj.org-article:80ac9f88c7ea424ebfacd4f7fbab582e2021-11-25T17:29:57ZCollisions of Two-Phase Liquid Droplets in a Heated Gas Medium10.3390/e231114761099-4300https://doaj.org/article/80ac9f88c7ea424ebfacd4f7fbab582e2021-11-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1476https://doaj.org/toc/1099-4300The paper presents the experimental research findings for the integral characteristics of processes developing when two-phase liquid droplets collide in a heated gas medium. The experiments were conducted in a closed heat exchange chamber space filled with air. The gas medium was heated to 400–500 °C by an induction system. In the experiments, the size of initial droplets, their velocities and impact angles were varied in the ranges typical of industrial applications. The main varied parameter was the percentage of vapor (volume of bubbles) in the droplet (up to 90% of the liquid volume). The droplet collision regimes (coalescence, bounce, breakup, disruption), size and number of secondary fragments, as well as the relative volume fraction of vapor bubbles in them were recorded. Differences in the collision regimes and in the distribution of secondary fragments by size were identified. The areas of liquid surface before and after the initial droplet breakup were determined. Conditions were outlined in which vapor bubbles had a significant and, on the contrary, fairly weak effect on the interaction regimes of two-phase droplets.Pavel TkachenkoNikita ShlegelPavel StrizhakMDPI AGarticletwo-phase dropletsvapor bubbleshigh-temperature gas mediuminteractioncollision regimessecondary fragmentsScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1476, p 1476 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	two-phase droplets vapor bubbles high-temperature gas medium interaction collision regimes secondary fragments Science Q Astrophysics QB460-466 Physics QC1-999
spellingShingle	two-phase droplets vapor bubbles high-temperature gas medium interaction collision regimes secondary fragments Science Q Astrophysics QB460-466 Physics QC1-999 Pavel Tkachenko Nikita Shlegel Pavel Strizhak Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium
description	The paper presents the experimental research findings for the integral characteristics of processes developing when two-phase liquid droplets collide in a heated gas medium. The experiments were conducted in a closed heat exchange chamber space filled with air. The gas medium was heated to 400–500 °C by an induction system. In the experiments, the size of initial droplets, their velocities and impact angles were varied in the ranges typical of industrial applications. The main varied parameter was the percentage of vapor (volume of bubbles) in the droplet (up to 90% of the liquid volume). The droplet collision regimes (coalescence, bounce, breakup, disruption), size and number of secondary fragments, as well as the relative volume fraction of vapor bubbles in them were recorded. Differences in the collision regimes and in the distribution of secondary fragments by size were identified. The areas of liquid surface before and after the initial droplet breakup were determined. Conditions were outlined in which vapor bubbles had a significant and, on the contrary, fairly weak effect on the interaction regimes of two-phase droplets.
format	article
author	Pavel Tkachenko Nikita Shlegel Pavel Strizhak
author_facet	Pavel Tkachenko Nikita Shlegel Pavel Strizhak
author_sort	Pavel Tkachenko
title	Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium
title_short	Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium
title_full	Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium
title_fullStr	Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium
title_full_unstemmed	Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium
title_sort	collisions of two-phase liquid droplets in a heated gas medium
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/80ac9f88c7ea424ebfacd4f7fbab582e
work_keys_str_mv	AT paveltkachenko collisionsoftwophaseliquiddropletsinaheatedgasmedium AT nikitashlegel collisionsoftwophaseliquiddropletsinaheatedgasmedium AT pavelstrizhak collisionsoftwophaseliquiddropletsinaheatedgasmedium
_version_	1718412295292321792

Collisions of Two-Phase Liquid Droplets in a Heated Gas Medium

Ejemplares similares