Computational simulations of liquid sprays in crossflows with an algorithmic module for primary atomization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F21%3APU143762" target="_blank" >RIV/00216305:26210/21:PU143762 - isvavai.cz</a>

Výsledek na webu

<a href="https://asmedigitalcollection.asme.org/gasturbinespower/article/143/6/061020/1092415/Computational-Simulations-of-Liquid-Sprays-in" target="_blank" >https://asmedigitalcollection.asme.org/gasturbinespower/article/143/6/061020/1092415/Computational-Simulations-of-Liquid-Sprays-in</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/1.4049380" target="_blank" >10.1115/1.4049380</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Computational simulations of liquid sprays in crossflows with an algorithmic module for primary atomization

Popis výsledku v původním jazyce

For simulations of liquid jets in cross flows, the primary atomization can be treated with the quadratic formula, which has been derived from integral form of conservation equations of mass and energy in our previous work. This formula relates the drop size with the local kinetic energy state, so that local velocity data from the volume-of-fluid (VOF) simulation prior to the atomization can be used to determine the initial drop size. This initial drop size, along with appropriately sampled local gas velocities, is used as the initial conditions in the dispersed-phase simulation. This procedure has been performed on a coarse-grid platform, with good validation and comparison with available experimental data at realistic Reynolds and Weber numbers, representative of gas-turbine combustor flows. The computational procedure produces all the relevant spray characteristics: spatial distributions of drop size, velocities, and volume fluxes, along with global drop size distributions. The primary atomization module is based on the conservation principles and is generalizable and implementable to any combustor geometries for accurate and efficient computations of spray flows.

Název v anglickém jazyce

Computational simulations of liquid sprays in crossflows with an algorithmic module for primary atomization

Popis výsledku anglicky

For simulations of liquid jets in cross flows, the primary atomization can be treated with the quadratic formula, which has been derived from integral form of conservation equations of mass and energy in our previous work. This formula relates the drop size with the local kinetic energy state, so that local velocity data from the volume-of-fluid (VOF) simulation prior to the atomization can be used to determine the initial drop size. This initial drop size, along with appropriately sampled local gas velocities, is used as the initial conditions in the dispersed-phase simulation. This procedure has been performed on a coarse-grid platform, with good validation and comparison with available experimental data at realistic Reynolds and Weber numbers, representative of gas-turbine combustor flows. The computational procedure produces all the relevant spray characteristics: spatial distributions of drop size, velocities, and volume fluxes, along with global drop size distributions. The primary atomization module is based on the conservation principles and is generalizable and implementable to any combustor geometries for accurate and efficient computations of spray flows.

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

2021

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME

ISSN

0742-4795

e-ISSN

1528-8919

Svazek periodika

143

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

061020-061020

Kód UT WoS článku

000656444600023

EID výsledku v databázi Scopus

2-s2.0-85107629569