Numerical analysis of ventilated cavitating flow around an axisymmetric object with different discharged temperature conditions

Duy, Trong-Nguyen; Nguyen, Van-Tu; Phan, Thanh-Hoang; Hwang, Hyun-Sung; Park, Warn-Gyu

doi:10.1016/j.ijheatmasstransfer.2022.123338

Cited by 6 publications

(2 citation statements)

References 63 publications

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“…Higher fuel temperature tends to produce vapor bubble and this phenomenon is known as cavitation [125,132,133]. In the liquid fuel injection behavior, cavitation combined with turbulence can improve spray performance in terms of the liquid atomization, droplets breakup and air entrainment.…”

Section: Factors Affecting Spray Evolutionmentioning

confidence: 99%

Diesel Spray: Development of Spray in Diesel Engine

Djamari

Idris²,

Paristiawan³

et al. 2022

Sustainability

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Research and development in the internal combustion engine (ICE) has been growing progressively. Issues such as air pollution, fuel cost, and market competitiveness have driven the automotive industry to develop and manufacture automobiles that meet new regulation and customers’ needs. The diesel engine has some advantages over the gasoline or spark ignition engine, including higher engine efficiency, greater power output, as well as reliability. Since the early stage of the diesel engine’s development phase, the quest to obtain better atomization, proper fuel supply, and accurate timing control, have triggered numerous innovations. In the last two decades, owing to the development of optical technology, the visualization of spray atomization has been made possible using visual diagnostics techniques. This advancement has greatly improved research in spray evolution. Yet, a more comprehensive understanding related to these aspects has not yet been agreed upon. Diesel spray, in particular, is considered a complicated phenomenon to observe because of its high-speed, high pressure, as well as its high temperature working condition. Nevertheless, several mechanisms have been successfully explained using fundamental studies, providing several suggestions in the area, such as liquid atomization and two-phase spray flow. There are still many aspects that have not yet been agreed upon. This paper comprehensively reviews the current status of theoretical diesel spray and modelling, including some important numerical and experimental aspects.

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Section: Factors Affecting Spray Evolutionmentioning

confidence: 99%

Diesel Spray: Development of Spray in Diesel Engine

Djamari

Idris²,

Paristiawan³

et al. 2022

Sustainability

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show abstract

“…The flow at the back tends to be more homogeneous, resulting in a reduction in required power. However, a significant challenge in high-speed propellers remains cavitation (Duy et al, 2022;Köksal et al, 2021). Cavitation is defined as the process of forming a liquid vapor phase due to reduced pressure at a constant room temperature (Yusvika et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Duct Vane Application on Patrol Boats Using Computational Fluid Dynamics

Budiyanto,

Naufal,

Putra

et al. 2024

IJTech

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Fast patrol boats are designed for high performance in surveillance and warfare missions. In terms of hull technology development, the fast patrol boat commonly uses a V-type hull with hard chine. A duct vane is an innovation developed to improve the performance of patrol boats by combining the principles of wake-equalizing duct and hydrofoil. The objective of this paper is to investigate the hydrodynamic effect of the application of duct vane on the patrol boat hull design. The investigation was carried out using computational fluid dynamics that was validated using experiment data. The result of the duct vane application can improve the ship speed performance and reduce the total resistance by 40% at Fn 0.6. The results of this study also provide an overview of the influence of the duct vane on the lift force of a hard chine hull-type.

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Underwater ejection multifield coupling model and response characteristics

Liu

et al. 2023

Ocean Engineering

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Numerical analysis of ventilated cavitating flow around an axisymmetric object with different discharged temperature conditions

Cited by 6 publications

References 63 publications

Diesel Spray: Development of Spray in Diesel Engine

Diesel Spray: Development of Spray in Diesel Engine

Performance Analysis of Duct Vane Application on Patrol Boats Using Computational Fluid Dynamics

Underwater ejection multifield coupling model and response characteristics

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