COMPUTATIONAL STUDIES ON THERMAL COMFORT OF HELMET
Keywords:
CFD, bicycle helmet, Modelled mannequin, thermal comfort, variable speed, pitch angle.Abstract
In this competitive era of sports, bicycle Helmet based game gaining popularity and everybody want to win so the knowledge of sports engineering become very important. We either do not know about science behind it or very less information is available in open domain. Even a very little information can play crucial role to win the game. In every game like volleyball, football, golf, cricket, rugby, baseball, tennis and bicycle racing aerodynamic and thermal comfort play an important role; Most of the bicycle helmet is elliptical shape with maximum vents for the thermal comfort. To study the computational performance aerodynamics and thermal performance studied at 30 to 70 kph speed and at 45ᵒ and 90ᵒ pitch angle, It has been found that at 45ᵒ pitch angle is the more efficient for thermal comfort than 90ᵒ pitch angle, at 30 kph velocity temperature drop is more but at 60 to 70 kph temperature drop is very less. Variation of temperature have been studied and found the little difference in temperature at different pitch angle.
