High speed imaging in fundamental and applied combustion research

V Sick - Proceedings of the Combustion Institute, 2013 - Elsevier
This overview presents examples of applications of high frame rate imaging diagnostics in
fundamental and applied combustion research. Progress in the performance of high frame …

A practical guide for using proper orthogonal decomposition in engine research

H Chen, DL Reuss, DLS Hung… - International Journal of …, 2013 - journals.sagepub.com
Proper orthogonal decomposition has been utilized for well over a decade to study
turbulence and cyclic variation of flow and combustion properties in internal combustion …

Cycle-to-cycle variation analysis of early flame propagation in engine cylinder using proper orthogonal decomposition

H Chen, M Xu, DLS Hung, H Zhuang - Experimental Thermal and Fluid …, 2014 - Elsevier
Experimental investigations on the cycle-to-cycle variations of early flame propagation were
conducted at two intake air swirl ratio of 0.55 and 5.68 in a single-cylinder spark-ignition …

Characterization of the effect of intake air swirl motion on time-resolved in-cylinder flow field using quadruple proper orthogonal decomposition

H Zhuang, DLS Hung - Energy Conversion and Management, 2016 - Elsevier
The control of intake air swirl motion is often used in spark-ignition direct-injection (SIDI)
engine to improve its in-cylinder fuel–air mixing process especially under engine idle and …

Cyclic analysis of in-cylinder vortex interactions based on data-driven detection and characterization framework

F Zhao, Z Zhou, DLS Hung - … of Engineering for …, 2023 - asmedigitalcollection.asme.org
The complex vortex flow interactions are critical to affect the fuel–air mixing and combustion
stability in direct-injection engine. However, due to the strong cyclic variations inside engine …

Analyzing the cycle-to-cycle variations of pulsing spray characteristics by means of the proper orthogonal decomposition

H Chen, DLS Hung, M Xu, J Zhong - Atomization and Sprays, 2013 - dl.begellhouse.com
This paper presents a novel approach to analyze the cycle-to-cycle variations of pulsing
spray characteristics. The purpose is to quantify the cycle-to-cycle variations of the …

Proper orthogonal decomposition analysis of fuel spray structure variation in a spark-ignition direct-injection optical engine

H Chen, DLS Hung, M Xu, H Zhuang, J Yang - Experiments in fluids, 2014 - Springer
For spark-ignition direct-injection (SIDI) engines in which fuel is injected directly in the
cylinder, large amount of in-cylinder mixture variation on a cyclic basis could adversely …

Effect of boost pressure on the in-cylinder tumble-motion of GDI engine under steady-state conditions using Stereoscopic-PIV

M El Adawy, MR Heikal, AR A Aziz, S Munir… - Journal of Applied …, 2018 - jafmonline.net
This paper experimentally investigates the effect of boost pressure on the in-cylinder flow
field under steady-state conditions using stereoscopic particle image velocimetry (Stereo …

Investigation of swirl ratio impact on in-cylinder flow in an SIDI optical engine

H Zhuang, DLS Hung, J Yang… - … of Engineering for …, 2016 - asmedigitalcollection.asme.org
Advanced powertrain technologies have improved engine performance with higher power
output, lower exhaust emission, and better controllability. Chief among them is the …

[PDF][PDF] Analysis of spray structure and penetration variations using proper orthogonal decomposition

H Zhuang, DLS Hung, M Xu… - The 16th conference of …, 2013 - researchgate.net
The variations between different engine cycles are often caused by the physical phenomena
of fuel-air mixture formation and combustion processes from the intake stroke to the exhaust …