Numerical Simulation and Experiment on Assemble Nozzles’ Flow Field in Laser Cutting

Jun Hu; Qian Qian Cao; Jing Wen Luo

doi:10.4028/www.scientific.net/MSF.663-665.1302

Paper Titles

Effect of Heat Treatment Conditions on Microstructure and Infrared Transmission Property of Germanate Oxyfluoride Glass-Ceramics
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Syntheses and Thermo-Decomposition Process of the Co-Doping VO₂(M) Precursor
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Effect of Substrate Temperature on the Properties of Al-Doped ZnO Films by RF Magnetron Sputtering
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Interface Properties of Au/CdZnTe Formed by Different Method
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Numerical Simulation and Experiment on Assemble Nozzles’ Flow Field in Laser Cutting
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Simulation Study of Microstructure Transition of Liquid Ge during Rapid Cooling Solidification
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Structure and Piezoelectric Properties of (1-X)K_0.49Na_0.51NbO_3-XLiTaO₃ Lead-Free Piezoceramics
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Effect of Heat Treatment on Structural and Optoelectronic Properties of GaN Epilayers
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Investigation on Preferential Chemical Etching of Dislocations in Sapphire
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Numerical Simulation and Experiment on Assemble Nozzles’ Flow Field in Laser Cutting

Abstract:

Based on a convergent nozzle and a conical nozzle, the simulation of the free jet of assemble nozzles by adopting a three-dimensional axial symmetrical model is presented in the paper. The study reveals the effect of cone angle of conical nozzle and the parabola equation of convergent nozzle on flow field by adjusting nozzles’ interior figure parameters. The distribution of pressure and velocity of gas jet are shown in the investigation. A conical nozzle with cone angle of 30° and a convergent nozzle described by the parabola equation of y=0.207x2 are designed and produced for the laser cutting experiment. Numerical simulation and experimental results are given at the end of the paper.