Posts

Aviation Fuels: Powering the Skies Towards a Sustainable Future

  Introduction The aviation industry is one of the most remarkable achievements of modern engineering, connecting people, cultures, and economies across the globe. At the heart of this vast network lies a critical component— aviation fuel . Without it, aircraft would remain grounded, and global mobility would come to a standstill. Aviation fuels not only power engines but also influence aircraft performance, operational efficiency, and environmental impact. In recent years, the conversation around aviation fuels has shifted dramatically. With rising concerns about climate change and carbon emissions, the industry is now focusing on cleaner and more sustainable alternatives. This blog explores the types, characteristics, challenges, and future of aviation fuels in a rapidly evolving world. What Are Aviation Fuels? Aviation fuels are specialized types of petroleum-based or alternative fuels designed to power aircraft engines. These fuels must meet strict safety, performance, and...
Post a Comment
Read more

AERODYNAMICS OF ROAD VEHICLES

Image
  Introduction Road vehicles are bluff bodies with extremely complex geometry. Engine compartment, wheels, mirrors and other external and internal attachments and recessed cavities creates geometrical and fluid mechanical complexity. The flow over a vehicle is fully three-dimensional. Boundary layers are turbulent. Flow separation is common and may be followed by reattachment. Large turbulent wakes are formed at the rear and in many cases contain longitudinal trailing vortices. Drag in road vehicle is mainly due to pressure drag. In aircraft, the drag is mainly due to the friction drag. The avoidance of separation or its control is the main objectives of vehicle aerodynamics. With regard to their geometry, road vehicles comprise a large variety of configurations. Passenger cars, vans, and buses are closed, single bodies. Trucks and race cars can be of more than one body. Motorcycles and some race cars have open driver compartments. With the race car being the only exception, the sh...
Post a Comment
Read more