TY - JOUR ID - TI - 3D CFD SIMULATION AND EXPERIMENTAL STUDY OF A WATER JET IMPINGEMENT AU - Saeed R. Yassen PY - 2019 VL - 10 IS - 4 SP - 53 EP - 65 JO - KUFA JOURNAL OF ENGINEERING مجلة الكوفة الهندسية SN - 20715528 25230018 AB - To investigate the reaction forces produced by the change in momentum of a water jet, anexperimental and computational fluid dynamics (CFD) study are carried out. In theexperiment, the water jet forces on a test horizontal hemispherical cup are measured. ANSYSCFX simulation code is used to provide a 3D CFD simulation of a circular cross section waterjet released from a nozzle and moves upward in the air before striking a horizontalhemispherical cup and a flat plate. The progress in the CFD simulation within the last decademake it possible to analyze and visualize the flow pattern of complex multiphase free surfacefluid flow. The simulated forces of the vertical water jet against a horizontal hemisphericalcup using ANSYS CFX code are compared with the experimental forces generated by thewater jet as it strikes a hemispherical cup. A good agreement is found in the CFD resultscompared with the experimental results. 21.649 % was the maximum percent differencerecorded at 0.245 kg/sec flowrate and 0.484 % was the minimum percent difference at 0.368kg/sec flowrate.

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