Introduction Standing hundreds of meters above the ground, modern wind turbines have become one of the most recognizable symbols of renewable energy. Despite decades of technological advancement, one design feature has remained remarkably consistent: almost every utility-scale wind turbine has three blades. This raises an interesting engineering question—if more blades capture more wind, why […]
Introduction The flow around bluff bodies, particularly circular cylinders, is a fundamental topic in fluid mechanics due to its importance in engineering applications such as heat exchangers, offshore structures, bridge piers, chimneys, and tube banks. When fluid flows past a circular cylinder, the boundary layer separates from the surface because of an adverse pressure gradient,
Introduction Renewable energy has become increasingly important due to the growing demand for clean and sustainable power sources. Wind energy is one of the most widely used renewable energy resources because it is environmentally friendly and readily available. A Vertical Axis Wind Turbine (VAWT) converts the kinetic energy of wind into mechanical and electrical energy.
Introduction Fluid mechanics is a basic engineering discipline that is concerned with the study of fluids in motion and at rest. Knowing how air flows around objects is critical in the design and analysis of aircraft, cars, wind turbines, buildings, bridges, and many other engineering systems. A wind tunnel is one of the best experimental
Introduction Flow visualization is one of the most important experimental techniques in fluid mechanics, as it helps to understand the behavior of fluid flow around different objects. It allows engineers and researchers to observe streamlines, flow separation, wake formation, and vortex structures that cannot be seen with the naked eye. Commercial water channels used for
Introduction Measuring the velocity of a fluid without disturbing its flow has been one of the most enduring problems in engineering. One of the easiest ways to solve this problem is by using the Pitot-static tube, an invention that dates back to 1732 when it was used by Henri Pitot to measure the velocity of
When we see an aircraft taking off or a drone hovering in the air, one of the most important components responsible for its motion is the propeller. Although it may appear to be a simple rotating device, a propeller is actually a carefully designed aerodynamic system that converts the engine's rotational power into forward motion.
INTRODUCTION Flow pattern around a cylinder occurs when the boundary layer, slowed by viscous friction, cannot overcome the adverse pressure gradient encountered along the rear surface. As fluid moves past the cylinder’s maximum thickness, it decelerates, causing the pressure to rise in the direction of flow. This pressure increase forces the boundary layer to detach
Introduction Every aircraft, drone, and race car owes part of its performance to hours spent not in the sky or on the road, but inside a wind tunnel. In simple terms, a wind tunnel is a controlled channel of moving air — a setup built to recreate, on the ground and at a manageable scale,
Introduction Water pollution is a significant environmental challenge particularly floating plastic waste and debris. To address this issue on pond, this project introduces a River Cleaning Boat which is a floating mechanical device designed to actively collect surface waste from water bodies. Definition and Type of Concept Our project operates on a conveyor belt mechanism
