Numerical Simulation for Floater Design on the 17 Passengers Capacity of N219 Amphibian in Static and Dynamic Condition Sayuti Syamsuar1, Erwandi4, Bagiyo Suwasono2, Sutiyo2, Nina Kartika1, Adityo Suksmono1, Annissa Roschyntawati1, Hendrato1, Andi M Kadir3, Arief Setyawan3, Ali Munazid5
Agency of Assessment and Technology Application (BPPT)
Abstract
The Sea Toll allows the formation of marine tourism transportation, such as a floatplane to be developed in the Indonesian Archipelago Region. This research develops a floater design for a floatplane with a capacity of 17 passengers of N219 Amphibian. Design configurations were coded by LPDP-01 to LPDP-09. The final result of numerical simulation shows that the best design was the Floater LPDP-09x0 with a length of 9.8 meters in the static condition. The characteristics of the floater have small resistance, relatively stable movement, and included in the safe category. The dynamic condition is presented by the Computational Fluid Dynamic simulation for the low speed movement of the amphibian aircraft during takeoff phase.
The assumptions of this research that^s are (a). the weight of main and nose landing gear (365.56 kg) are smaller than twin floater (2 x 369 kg)- (b). the method numerical analysis is by using trim even keel condition for Savitsky method to known the draft, volume and displacement of 9.8 m and 11.8 m length as first iteration of analysis for static condition- (c). and the porpoising effect is included in the figure of results as second iteration of analysis for dynamic condition. The dynamic condition of numeric analysis will be compared with existing data from towing tank test model in the next medium speed.
Keywords: Floater, Resistance, CFD, even keel, porpoising, static and dynamic condition.
