Computational Simulations of Spray Cooling with Air-Assist Injectors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU146105" target="_blank" >RIV/00216305:26210/22:PU146105 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.tandfonline.com/doi/pdf/10.1080/01457632.2022.2093534" target="_blank" >https://www.tandfonline.com/doi/pdf/10.1080/01457632.2022.2093534</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/01457632.2022.2093534" target="_blank" >10.1080/01457632.2022.2093534</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Computational Simulations of Spray Cooling with Air-Assist Injectors

Popis výsledku v původním jazyce

A new computational procedure for simulating air-assist flat sprays with atomization is described and demonstrated for surface cooling applications. This procedure builds upon and utilizes findings from our previous work; particularly the integral form of the conservation equations which are used to derive explicit quadratic formulas for drop size. These formulations relate the local energetic state to initial drop size produced by primary atomization processes. In this manner, the local liquid and gas phase velocities prior to atomization are used in the quadratic formula to provide the initial drop size and the appropriate local velocities are utilized as the initial droplet momentum state in a discrete particle tracking algorithm. This procedure has been performed and compared to experimental data for drop size and velocity. This furnishes a platform to further study the effects of droplet distributions on heat transfer and momentum transfer between the spray and a heated metal surface. This approach is based on the conservation principles and generalizable, so that it can easily be implemented in any spray geometry for accurate and efficient computations of two-phase flows including spray cooling.

Název v anglickém jazyce

Computational Simulations of Spray Cooling with Air-Assist Injectors

Popis výsledku anglicky

A new computational procedure for simulating air-assist flat sprays with atomization is described and demonstrated for surface cooling applications. This procedure builds upon and utilizes findings from our previous work; particularly the integral form of the conservation equations which are used to derive explicit quadratic formulas for drop size. These formulations relate the local energetic state to initial drop size produced by primary atomization processes. In this manner, the local liquid and gas phase velocities prior to atomization are used in the quadratic formula to provide the initial drop size and the appropriate local velocities are utilized as the initial droplet momentum state in a discrete particle tracking algorithm. This procedure has been performed and compared to experimental data for drop size and velocity. This furnishes a platform to further study the effects of droplet distributions on heat transfer and momentum transfer between the spray and a heated metal surface. This approach is based on the conservation principles and generalizable, so that it can easily be implemented in any spray geometry for accurate and efficient computations of two-phase flows including spray cooling.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/LTAUSA19053" target="_blank" >LTAUSA19053: Principy tvorby a využití vodovzdušné směsi v průmyslových aplikacích</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Heat Transfer Engineering

ISSN

0145-7632

e-ISSN

1521-0537

Svazek periodika

44

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

000818863500001

EID výsledku v databázi Scopus

2-s2.0-85133218783