Firstly, select a nozzle and get all its parameters like spray angle, mass flow rate, dipersion angle and nozzle diameter. Create a domain in which 2 nozzles can fit, as shown in thesis. Divide the domain in 2 zones and perform fine mesh on the top surface of solid surface where spray will heat. Write a function for slab temperature variation and give it as the solid part input. Use DPM model, to create injectors inside the domain and solve.