Abstract:
Aircraft engine jet noise has been a problem since the beginnings of aviation with the introduction of jet-powered aircraft. The demand of aircraft for transport and combat purpose has largely increased in present times. The statistics has forecast that aviation is likely to grow over the next 30 years at an average rate of 4.25% per year in these aircraft; modern technologies are being used where the use of jet engines is inescapable. All types of engines are generating noise which has negative impact on environment as well as human being. Although individual aircraft has become quieter over the past 30 years but flight frequencies have increased. High speedy supersonic aircrafts are also using for military purposes. This paper offers basically an approach to study about engine jet noise, its sources, causes of jet noise, noise propagation, it’s impact and finally trying to find solution to reduce it. Though it is a vast field in aviation sector, this topic is discussed in brief.
