Journal ArticleDOI
Turbulent Sprays Evaporating Under “Stabilized Cool Flame” Conditions: Assessment of two CFD Approaches
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TLDR
In this paper, an in-house computational fluid dynamics code implementing a Euler-Lagrange approach is extended by incorporating the EulerEuler (two-fluid model) approach, to improve prediction capabilities of flow and thermal characteristics of turbulent evaporating sprays.Abstract:
An “in-house” computational fluid dynamics code implementing a Euler-Lagrange approach is extended by incorporating the Euler-Euler (two-fluid model) approach, to improve prediction capabilities of flow and thermal characteristics of turbulent evaporating sprays. The performance of both approaches is assessed by comparing predictions with experimental data for a variety of evaporating-spray test cases. The applicability of the Euler-Lagrange and Euler-Euler approach is established in an isopropyl alcohol–air turbulent flow, in which characteristic droplet quantity predictions are in satisfactory overall agreement with measurements. The evaporating spray characteristics are then predicted under “stabilized cool flame” conditions and the computational results are compared to experimental data for a nonreactive case and a reactive case. In both cases, the velocity and thermal fields are successfully captured by both approaches. Overall, the article demonstrates an approach toward the development of performan...read more
Citations
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Journal ArticleDOI
Liquid fuel processing for hydrogen production: A review
Joongmyeon Bae,Sangho Lee,Sunyoung Kim,Jiwoo Oh,Seunghyeon Choi,Minseok Bae,Inyong Kang,Sai P. Katikaneni +7 more
TL;DR: In this paper, the authors summarize and discuss each liquid fuel processing technology and the kW-class reactors for converting liquid fuels into hydrogen-rich gases in a stable manner, and discuss the applications of these technologies.
Journal ArticleDOI
Literature Survey of Numerical Heat Transfer (2000–2009): Part II
TL;DR: A comprehensive survey of the literature in the area of numerical heat transfer (NHT) published between 2000 and 2009 has been conducted by as mentioned in this paper, where the authors conducted a comprehensive survey.
Journal ArticleDOI
Numerical investigation on heat transfer of water spray cooling from single-phase to nucleate boiling region
TL;DR: In this paper, a two-phase flow heat transfer model was adopted based on the Euler-Lagrangian approach to investigate spray cooling heat transfer characteristics under the heat flux ranging from 50 to 170 W/cm2.
Journal ArticleDOI
Towards the optimization of a pulsatile three-stream coaxial airblast injector
TL;DR: In this paper, a large-scale parametric air-water test stand (AWTS) study involving more than 40 evaluations was carried out for the purposes of three-stream airblast reactor feed injector characterization and optimization; a subset of seven air stream combinations is discussed here.
Journal ArticleDOI
Mixing and evaporation of liquid droplets injected into an air stream flowing at all speeds
Fadl Moukalled,Marwan Darwish +1 more
TL;DR: In this article, three numerical techniques based on a full multiphase approach, a multisize-group (MUSIG) approach, and a heterogeneous MUSIG approach were used for the prediction of mixing and evaporation of liquid droplets injected into a stream of air.
References
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BookDOI
Multiphase Flows with Droplets and Particles
TL;DR: In this article, the authors present a test case for a single-phase flow Turbulence Modulation by Particles (SPM) model using the Brownian Motion model.
Journal ArticleDOI
Aspects of Computer Simulation of Liquid-Fueled Combustors
A.D. Gosman,E. Ioannides +1 more
TL;DR: In this paper, an existing discrete droplet model of liquid sprays has been extended to include a stochastic representation of turbulent dispersion effects, and applications to simple test cases, including the dispersion of single particles, produce reasonable agreement.