Challenges and Opportunities of Particle Imaging Velocimetry as a Tool for Internal Combustion Engine Diagnostics

Jena, Ashutosh; Singh, Akhilendra Pratap; Ágarwal, Avinash Kumar

doi:10.1007/978-981-16-1582-5_3

Cited by 2 publications

(2 citation statements)

References 80 publications

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“…Further, Scarano et al [141] focused on large-scale PIV, but with attention to its use for industrial aerodynamics, introducing the fundamental principles of flow seeding with peculiar particles, the helium-filled soap bubble (HFSB), and showing data from experiments where the free-stream velocity of 50 m/s, which according to the authors can be considered the upper boundary with this type of measurements, is reached. Jena et al [142] focused on the applications of PIV for the investigation of fluid flow and diagnostic purposes in internal combustion engine, highlighting how PIV can be an essential tool in this field, even if some challenges for its utilization for in-cylinder flow investigations still exist, e.g., the complication related to optical access in the intricate geometry of internal combustion engines or to the appropriate selection of seeding particles in a rapidly evolving ambient, involving fast combustion and chemical reactions. Blocken et al [143] reviewed the employment of PIV (and LDA) and compared their capacity of providing accurate results, when compared to CFD, in the field reviews wind tunnel and CFD techniques to determine pedestrian-level wind (PLW) speed for outdoor comfort assessment.…”

Section: Digital Image Analysis (Dia) Techniquesmentioning

confidence: 99%

A Review of Laboratory and Numerical Techniques to Simulate Turbulent Flows

Ferrari

Rossi²,

Bernardino

2022

Energies

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Turbulence is still an unsolved issue with enormous implications in several fields, from the turbulent wakes on moving objects to the accumulation of heat in the built environment or the optimization of the performances of heat exchangers or mixers. This review deals with the techniques and trends in turbulent flow simulations, which can be achieved through both laboratory and numerical modeling. As a matter of fact, even if the term “experiment” is commonly employed for laboratory techniques and the term “simulation” for numerical techniques, both the laboratory and numerical techniques try to simulate the real-world turbulent flows performing experiments under controlled conditions. The main target of this paper is to provide an overview of laboratory and numerical techniques to investigate turbulent flows, useful for the research and technical community also involved in the energy field (often non-specialist of turbulent flow investigations), highlighting the advantages and disadvantages of the main techniques, as well as their main fields of application, and also to highlight the trends of the above mentioned methodologies via bibliometric analysis. In this way, the reader can select the proper technique for the specific case of interest and use the quoted bibliography as a more detailed guide. As a consequence of this target, a limitation of this review is that the deepening of the single techniques is not provided. Moreover, even though the experimental and numerical techniques presented in this review are virtually applicable to any type of turbulent flow, given their variety in the very broad field of energy research, the examples presented and discussed in this work will be limited to single-phase subsonic flows of Newtonian fluids. The main result from the bibliometric analysis shows that, as of 2021, a 3:1 ratio of numerical simulations over laboratory experiments emerges from the analysis, which clearly shows a projected dominant trend of the former technique in the field of turbulence. Nonetheless, the main result from the discussion of advantages and disadvantages of both the techniques confirms that each of them has peculiar strengths and weaknesses and that both approaches are still indispensable, with different but complementary purposes.

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Section: Digital Image Analysis (Dia) Techniquesmentioning

confidence: 99%

A Review of Laboratory and Numerical Techniques to Simulate Turbulent Flows

Ferrari

Rossi²,

Bernardino

2022

Energies

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“…The distribution of liquid and vapor phases in diesel spray has gained great attention [126,189,[203][204][205]. In the last two decades, a new technique called particle image velocimetry (PIV) has successfully advanced the research in mixture formation [206][207][208]. PIV has revealed that the nearby airflow can be classified into three different regions according to the flow property.…”

Section: Optical Measurement Systemsmentioning

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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Challenges and Opportunities of Particle Imaging Velocimetry as a Tool for Internal Combustion Engine Diagnostics

Cited by 2 publications

References 80 publications

A Review of Laboratory and Numerical Techniques to Simulate Turbulent Flows

A Review of Laboratory and Numerical Techniques to Simulate Turbulent Flows

Diesel Spray: Development of Spray in Diesel Engine

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