Numerical Research On Single/Multiple Turbulent Water Jet

Impinging jet is an important kind of fluid movement types, whose theories and techniques are widely used in many engineering fields.Impinging jet is influenced by impinging material,temperature and roughness of wall,physical parameters of surrounding material,impinging method,impinging height,geometry parameters of nozzle,arrangement of nozzles,and so forth. The domestic and international research data display that,the experimental method is the main one. Regarding this situation,in the paper,it was selected turbulent free/impinging jet as the research object,set up their governing equations through theoretical analysis,chosed the standard k-ε model,adopted the SIMPLE (Semi-Implicit Method for Pressure Linked Equations)algorithm,and simulated the flow fields of single/multiple impinging turbulent jet.As the results research display that,the fators affected the impinging efficiency include the inlet-velocity,impinging angle,nozzle spacing(S/D), impinging height(H/D),etc.As for single turbulent impinging jet,it analyzes the influence of the inlet-velocity, impinging height(H/D) to...