@inproceedings{scholars9711, journal = {AIP Conference Proceedings}, year = {2018}, publisher = {American Institute of Physics Inc.}, doi = {10.1063/1.5075568}, note = {cited By 0; Conference of 6th International Conference on Production, Energy and Reliability, ICPER 2018 ; Conference Date: 13 August 2018 Through 14 August 2018; Conference Code:141991}, title = {Characterization of the effect of pressure difference on in-cylinder flow field using proper orthogonal decomposition (POD)}, volume = {2035}, abstract = {Recently, proper orthogonal decomposition (POD) technique has gained wide attractiveness as a powerful analysis tool in engine flows. The velocity vector fields resulted from high speed time-resolved particle image velocimetry (PIV) of the flow field inside an engine cylinder under steady-state conditions were investigated by proper orthogonal decomposition with the objective to compare the in-cylinder flow structures evolution and variation at different pressure differences 300, 450 and 600 mmH2O. The result demonstrated that mode 1 flow pattern was a good estimate of the ensemble-averaged tumble pattern. Moreover, there was a good correlation between mode 1 coefficients and the applied pressure difference. {\^A}{\copyright} 2018 Author(s).}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85057309285&doi=10.1063\%2f1.5075568&partnerID=40&md5=b9d617060eda8b1dab9fefc85584667a}, issn = {0094243X}, isbn = {9780735417618}, author = {El-Adawy, M. and Heikal, M. R. and Aziz, A. R. A. and Ismeal, M. A. and Wahhab, H. A. A.} }