The current work attempts to provide an idea of the drop ejection behaviour based on the computation of energies required for droplet formation and splat formation. | A numerical simulation and validation study of the mathematical model of droplet formation in drop on demand inkjet printer and the effect of rheological properties of polymerink for automobile lighting application International Journal of Mechanical Engineering and Technology IJMET Volume 10 Issue 03 March 2019 pp. 1326 1338 Article ID IJMET_10_03_134 Available online at http ijmet JType IJMET amp VType 10 amp IType 3 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication Scopus Indexed A NUMERICAL SIMULATION AND VALIDATION STUDY OF THE MATHEMATICAL MODEL OF DROPLET FORMATION IN DROP ON DEMAND INKJET PRINTER AND THE EFFECT OF RHEOLOGICAL PROPERTIES OF POLYMERINK FOR AUTOMOBILE LIGHTING APPLICATION . and Department of Automobile Engineering PSG College of Technology Coimbatore Tamilnadu. India. ABSTRACT A majority of the modern inkjet printers utilise drop on demand devices because of its precision in terms of time and easy control. The time-dependent fluid interface disruption renders the fluid dynamics process during droplet ejection complex. The current work attempts to provide an idea of the drop ejection behaviour based on the computation of energies required for droplet formation and splat formation. The simulation results for various nozzle diameters with different polymer inks are examined and it is validated with computational model. Further attempt is made to analyse the effect of rheological properties like viscosity and surface tension in the droplet formation. Key words Drop on demand inkjet droplet ejection viscosity surface tension. Cite this Article . and A Numerical Simulation and Validation Study of the Mathematical Model of Droplet Formation in Drop on Demand Inkjet Printer and the Effect of Rheological Properties of Polymerink for Automobile Lighting Application International Journal of Mechanical Engineering and Technology 10 3 2019 pp. 1326 1338. http .