Determination of Drag Coefficient for Hyundai Model Using the Strain Gauge Method
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 3
Abstract
The flow field around an automobile is very complex, characterized by a high degree of Three dimensionality, flow separation, reattachment and vortex formation. Flow visualization as well as flow simulation are helpful tools during the aerodynamic design of vehicles. The research-undertaken deals with an experimental estimation of CD (drag coefficient) for Hyundai car, (scale 1/30) using the strain gauge method ( FLA-6-11 type, 120Ω, 2.12 gauge factor, half-bridge connection), which was proved to be practical and reasonably accurate. Experiments were run within a subsonic aspiration wind tunnel, covering an air speed up to 33 m/s (i.e., Reynolds number 6.6 x 105 ). Results for drag coefficient were obtained in the range of 0.96 to 0.39. It was noted that the magnitude of CD decreased from 0.96 at 21.17 m/s to 0.39 at 33.00 m/s (i.e., decrease of drag coefficient by about 60%). Comparison of our results with those given by other authors is satisfactory.
Authors and Affiliations
Abdessamed Kacem, Ali Najim Abdullah
Keywords
Related Articles
- EP ID EP437893
- DOI 10.9790/1684-1503012328.
- Views 102
- Downloads 0
Estimating Axial Forces in Columns using Tributary Area Method and Finite Element Method; a Comparison
Axial forces in columns caused by gravity loadings are usually estimated for initial design using tributary area method. However, this method does not consider the axial deformations in columns nor the flexural rigiditie...
Design and Analysis of Ventilated Disc Brake
Braking is a technique which converts the kinetic energy of an automobile into mechanical energy, which must dissolute in the form of heat A brake disc usually made of cast iron or ceramic composites, is attached to the...
Simulation analysis of static lossless storage for LNG vehicle storage tank
Analyze the variation curves of temperature and pressure in the storage tank during the static lossless storage of LNG vehicle . Calculate the daily heat leakage and the static evaporation rate of the storage tank are ca...
Pineapple Leaves Fibers Composite Mechanical Properties
This research was conducted to identify the mechanical properties of pineapple leaves fibers composites. Pineapple leaves fibers composites use polyester resin as the matrix. Pineapple leaves that was used in this resear...
Optimization of Box Girder Bridge Using Genetic Algorithm Method
Box girder is widely used in bridge engineering because of its economy, aesthetic appearance. Now a day it is easy to get safe design due to recent advances in design field but safety with economy is the basic need of pr...