The measurement of unknown model to get the three dimensions of object configuration is by using the laser camera photo tracking. The three dimensions model became from solid drawing on the CATIA software. The CFX ANSYS computational fluid dynamics software is used on the 3D of Flying Boat remote control model full configuration. The rectangular and dihedral configurations of the model have Z forces value during acceleration on the water surface. The pressure distributions hydro planing have a good result also. The speeds on the simulation model are around (0 - 25) knots and Angle of Attack, α = 00. The downwash effect and vortex could be shown in the CFD results. To verify the simulation data analysis is uses the takeoff flight performance testing data during takeoff of Unmanned Aerial Vehicle “Alap alap” with the same Thrust per Weight ratio around 0.4, such as altitude height, airspeed, Z acceleration and pitch angle data. The hump drag of Flying Boat remote control model and the friction during takeoff of Unmanned Aerial Vehicle have been ignored.
Penggunaan sabun sangat efektif membunuh virus covid-19 dibandingkan dengan penggunaan hand sanitizer, hal ini dikarenakan virus merupakan partikel nano dengan bagian terlemah berupa lemak yang disebut lipid bilayer, sehingga sabun mampu melarutkan membran lemak virus dan menghancurkan virus. Salah satu bahan yang dapat dimanfaatkan untuk membuat sabun adalah minyak jelantah, namun masyarakat desa Tunas Muda belum mengetahui hal tersebut sehingga minyak jelantah menjadi limbah lingkungan. Pelatihan pembuatan sabun dari minyak jelantah ini bertujuan untuk mengedukasi masyarakat agar dapat memanfaatkan minyak jelantah menjadi produk yang bermanfaat dan menjadi salah satu upaya mencegah penularan virus covid-19 dengan rajin mencuci tangan menggunakan sabun.
Recently, the interest in renewable ocean energy has been growing rapidly among the ocean researchers in Indonesia. In this paper, the pattern of tidal current in Madura Strait was analyzed and it is used as First we present the general information of the structure of Suramadu Bridge and explain the purpose of installing tidal current turbine between its piers. Second, we develop the numerical model of Madura Strait. The bottom topography of Madura Strait is digitized from bathymetry map produced by Indonesian Navy. A nested hydrodynamic model has been developed to refine the specific area of interest around the piles of the Suramadu Bridge. MIKE-21 program is then employed to simulate the tidal current that passes between the piles of the bridge. Next, we validate the model by conducting the field measurement of the speed of tidal current between pile no. 56 and pile no. 57. We deployed ADCP and measured the current speed for 15 days. The obtained data is then compared with the numerical model. The results show that the simulated currents has similar pattern with the measured data. We also discuss the characteristics of the simulated tidal current comparing with the ADCP results. Finally we estimate the possible produced power produced from the kinetic energy of the predicted tidal current of hydrodynamic.
The experiment of Wing in Surface Effect craft A2B and A2C B type for (1 - 2) seaters prototype are the background of this research. The aerodynamic, hydrodynamic, thrust and weight data of these prototypes were already investigated. The best ratio of Thrust per Weight is around 0.4 from this experience to fulfill the liftoff condition from the water surface. The step position on the hull as the theoretical prediction of Wing in Surface Effect craft is made (2 to 10)0 from center of gravity, c.g location to the step position. These formulas have been used to designing the Flying Boat remote control model. The whole process to build the remote control model is shown on this paper. The investigation of the outer wing of Flying Boat remote control model had been done to elaborate the aerodynamic and hydrodynamic characteristic. Included the laser photo camera tracking to 3 D model and Computational Fluid Dynamics analysis have been done also. The three dimensions (3 D) figures are evaluated by CATIA software and then these data results were transfer to the input of CFx Computational Fluid Dynamics (CFD) software. The meshing, pressure distribution and forces distributions during hydro planing of outer wing and pontoon of Flying Boat remote control model have been analyzed by CFx Computational Fluid Dynamics software. The Z force on the outer wing and pontoon showed a good result.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.