Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
AERODYNAMIC ANALYSIS OF TRUCK ACCESSORIES USING COMPUTATIONAL FLUID DYNAMICS
Submission Author:
Diego Alves de Miranda , SC
Co-Authors:
Leonardo Schultz, Diego Alves de Miranda
Presenter: Diego Alves de Miranda
doi://10.26678/ABCM.COBEM2023.COB2023-0077
Abstract
Faced with the constant importance of road transport in the world, issues such as increasing the energy efficiency of these vehicles are increasingly being studied in various aspects. Because it is now understood that not only the powers offered, the resistance to body movements and the use of materials of less weight and greater resistance, but also the way in which the flow of fluid behaves along the body. Road transport is the most used, in relation to the others, representing approximately 59% of the total. The disadvantage of this mode of transport is the high cost, as fuel consumption is one of the most relevant factors. Due to the growing need for road vehicles to have greater energy efficiency, a search was triggered not only for engines capable of greater and more economical yields, but also for accessories that contributed to the gain in truck aerodynamics, whether new or used. In this context, this study presents an aerodynamic analysis of different accessories that are attached to trucks in order to improve air flow around the vehicle. For this purpose, computer simulations of air flow in the Scania 440 model truck were used through the Ansys Fluent software. The condition of steady state and constant speeds were considered. The main objective was to measure the drag values for different usual traffic speeds, as well as the analysis of the behavior of the fluid around the body during contact. Based on the results, it was found among the analyzed accessories that the roof deflector demonstrated greater energy efficiency in road vehicles, being able to reduce fuel consumption by approximately 17% when compared to a truck without the use of deflectors. It was concluded that the ceiling deflector has the highest energy efficiency among the studied devices. Emphasizing the situation generated, flat front truck, with motorization under the cabin and with a box-type semi-trailer. With the expected results having been achieved, in addition to all the knowledge acquired in the process, competence in the professional environment was thus guaranteed. In order to complement this work, it is possible to simulate many other aerodynamic accessories available on the market for trucks and their implements. In addition to the creation of new equipment, increasingly enriching the national scenario of development and creation of new products.
Keywords
Aerodynamics, energy efficiency, Trucks, drag coefficient
