Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD
AbstractThe current study demonstrates an experimental investigation of the tumble flow structures using Particle Image Velocimetry (PIV) under steady-state conditions considering the central vertical tumble plane. The experiments were carried out on a four-valve, pent-roof Gasoline Direct Injection (GDI) engine head at different valve lifts and with a pressure difference of 150 mmH2O across the intake valves. Furthermore, the Proper Orthogonal Decomposition (POD) analytical technique was applied to PIV-measured velocity vector maps to characterize the flow structures at various valve lifts, and hence the different rig tumble values. The results show that at low valve lifts (1 to 5 mm), 48.9 to 46.6% of the flow energy is concentrated in the large (mode 1) eddies with only 8.4 to 11.46% in mode 2 and 7.2 to 7.5 in mode 3. At high valve lifts, it can be clearly seen that some of the energy in the large eddies of mode 1 is transferred to the smaller flow structures of modes 2 and 3. This can be clearly seen at valve lift 10 mm where the values of the flow energy were 40.6%, 17.3%, and 8.0% for modes 1, 2, and 3, respectively. View Full-Text
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El-Adawy, M.; Heikal, M.R.; A. Aziz, A.R.; Siddiqui, M.I.; Munir, S. Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD. Energies 2017, 10, 1950.
El-Adawy M, Heikal MR, A. Aziz AR, Siddiqui MI, Munir S. Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD. Energies. 2017; 10(12):1950.Chicago/Turabian Style
El-Adawy, Mohammed; Heikal, Morgan R.; A. Aziz, A. R.; Siddiqui, Muhammad I.; Munir, Shahzad. 2017. "Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD." Energies 10, no. 12: 1950.
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