NUMERICAL ANALYSIS OF THE DRAG COEFFICIENT OF A MOTORCYCLE HELMET
Zbigniew CZYŻ
z.czyz@pollub.plDepartment of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin (Poland)
Paweł KARPIŃSKI
* Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin (Poland)
Tacetdin SEVDIM
Department of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Altinbas University, Mahmutbey Mah, Mahmutbey Dilmenler Cad 26, 34218 Bagcılar/Istanbul (Poland)
Abstract
The paper discusses a numerical investigation, using a CFD tool, ANSYS FLUENT, of drag acting on a motorcycle helmet. The simulations were performed on a model of a helmet downloaded from a free CAD model library. A solid model enabled us to generate a mesh, to define boundary conditions and to specify a model of turbulence. Accordingly, the values of forces acting on individual sections of the helmet were obtained and the coefficients of aerodynamic drag were calculated. The test results can be used to optimize the shape of the existing motorcycle helmet construction and to study the impact of generated drag forces on reaction forces affecting a motorcyclist’s body.
Keywords:
numerical analysis, CFD, drag coefficient, motorcycle helmetReferences
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Authors
Zbigniew CZYŻz.czyz@pollub.pl
Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin Poland
Authors
Paweł KARPIŃSKI* Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 36, 20-618 Lublin Poland
Authors
Tacetdin SEVDIMDepartment of Mechanical Engineering, Faculty of Engineering and Natural Sciences, Altinbas University, Mahmutbey Mah, Mahmutbey Dilmenler Cad 26, 34218 Bagcılar/Istanbul Poland
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