An Investigation of Near-Spark-Plug Flow Field and Its Effect on Spark Behavior

Sandhu, Navjot Singh; Yu, Xiao; Yang, Zhu; Dev, Shouvik; Purohit, Divyanshu; Ting, David S.‐K.; Zheng, Ming

doi:10.4271/2019-01-0718

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…spark plug electrodes) increases with the length of the discharge channel due to the increase of resistance. Correlation of plasma channel length and voltage drop can be found in Paa (2019), Sandhu et al (2019), Shiraishi et al (2016) and Tilz et al (2019) and is defined as:…”

Section: Function Principle Of the Vramentioning

confidence: 99%

“…In particular there is to mention the use of standard inductive ignition systems. This leads to a short spark duration and a strong dropping current profile during the discharge (Kim and Anderson 1995;Pashley et al 2000;Sandhu et al 2019).…”

Section: Function Principle Of the Vramentioning

confidence: 99%

“…The grey surface illustrates the detected pixels of the elongated spark. From this point, it was possible to define the area of the spark by counting the pixels (Sandhu et al 2019). As the images in Fig.…”

Section: Optical Analysis Of the Spark Deflectionmentioning

confidence: 99%

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Voltage rise anemometry in turbulent flows applied to internal combustion engines

Wörner

Rottenkolber

2021

Exp Fluids

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In an experimental procedure, a voltage rise anemometry is developed as a measurement technique for turbulent flows. Initially, fundamental investigations on a specific wind tunnel were performed for basic understanding and calibration purpose. Thus, a mathematical correlation is derived for calculating flow from measured secondary voltage of an ignition system under different thermodynamic conditions. Subsequently, the derived method was applied on a spark-ignited engine to measure in-cylinder flow. Therefore, no changes on combustion chamber were necessary avoiding any interferences of the examined flow field. Comparing four different engine configurations, a study of mean flow and turbulence was performed. Moreover, the results show a clear correlation between measured turbulence and analysed combustion parameters. Graphic abstract

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Section: Function Principle Of the Vramentioning

confidence: 99%

Section: Function Principle Of the Vramentioning

confidence: 99%