Rajat Walia’s Post

Delta Wing Aerodynamics! Delta wings are known as highly swept wings. That’s what makes them aerodynamically more efficient at a high angle of attack. The image shows the flow field in the crossflow plane above a delta wing at angle of attack, showing the two primary leading-edge vortices. The vortices are made visible by small air bubbles in water. The dominant flow features across the delta wing are these multiple vortex patterns that are shed from the vicinity of the highly swept leading edge. This vortex stably creates huge suction peaks close to the upper surface leading edge and by this mechanism, delta wings are able to sustain high lift up to a high angle of attack where convectional airfoil section wing would be stalled. Source: ONERA - The French Aerospace Lab #mechanicalengineering #mechanical #aerospace #automotive #cfd #formulaone #aerodynamics

Gorgeous visualization of vortices shed in the wake of a fixed cylinder placed in flow for Reynolds numbers larger than 47 Source/credit/measurement done by _Bridget Benner #cfd #engineering #aerodynamics #aerospace #fluidmechanics

Aerospace coatings and plating play a crucial role in ensuring the longevity and reliability of aircraft and spacecraft by providing essential protection and performance enhancements for various components. These specialised coatings are designed to offer excellent resistance to corrosion, wear, and extreme temperatures, which are common challenges in aerospace environments. Additionally, Aerospace coatings improve fuel efficiency by reducing drag, enhancing aerodynamics, and lowering maintenance costs. Compliance with stringent industry standards such as AMS 2438, AMS 2460, and NADCAP ensures that Aerospace coatings meet the highest quality and safety requirements in modern Aerospace applications.

Pressure waves of air flowing off an Aeroplane! Speed ranging from Subsonic to Hypersonic: Subsonic: Air is flowing slower than speed of sound over the entire part of Aeroplane. Usually less than Mach 0.8 Transonic: Air is flowing faster than speed of sound over some parts of the Aeroplane. Around Mach 0.8 to Mach 1.2 Supersonic: Air is flowing faster than speed of sound over entire Aeroplane. Greater than Mach 1.2 Hypersonic: Air is flowing 5 times or more faster than speed of sound over entire Aeroplane. In Hypersonic regime, When Mach no. greater than 5, Aerodynamic heating becomes a critical factor. Source: engineering.insight @instagram #mechanical #mechanicalengineering #aerospace #automotive #cfd #aerodynamics

Shadowgraph imagery investigating the flow quality in the Boeing Polysonic Wind Tunnel, capable of speeds beyond Mach 5. Built in 1959, the Polysonic Wind Tunnel is a blow-down to atmospheric facility with 8 air storage tanks providing 53,000 cubic feet of air pressurized to 610 psia. A pitot-static probe was used to calculate the Mach number and a 4-hole cone probe was used to calculate the flow angularity. Blows can range from 30 seconds to 2 minutes at Mach numbers between 0.45 and 5.32. A gas turbine compressor refills the tanks to achieve a blow frequency of every 30 to 40 minutes. The St. Louis-based tunnel was originally constructed for the McDonnell Aircraft Corporation and is now operated by The Boeing Company. It has a unique history testing a wide variety of flight vehicles, from canopy ejections of the F-4 Phantom to aerodynamic performance of the Space Launch System (SLS). Video & Post Source: Joseph Ayd #mechanicalengineering #mechanical #aerospace #aerodynamics

🚨 Attention #aerospace engineers! 🚨 Kistler Group launched the game-changing 8740A & 8788A accelerometers - boasting the lowest noise thresholds on the market. These new sensors are ideal for ultra-precise vibration testing in #aviation ✈ and #space 🛰 #applications. They combine minimal weight and size with enhanced robustness for reliable measurements. Share this with your network if you're in aerospace testing and read the full article from Aerospace Testing International under the following link: https://lnkd.in/dXfVFpy5 #Kistler #vibrationtesting

Check out the new modal accelerometers on the block from Kistler!

Aerospace coatings and plating play a crucial role in ensuring the longevity and reliability of aircraft and spacecraft by providing essential protection and performance enhancements for various components. These specialised coatings are designed to offer excellent resistance to corrosion, wear, and extreme temperatures, which are common challenges in aerospace environments. Additionally, Aerospace coatings improve fuel efficiency by reducing drag, enhancing aerodynamics, and lowering maintenance costs. Compliance with stringent industry standards such as AMS 2438, AMS 2460, and NADCAP ensures that Aerospace coatings meet the highest quality and safety requirements in modern Aerospace applications.

✈️In modern aircraft, under-wing engine nacelles can hinder wing performance by causing premature flow separation. Strakes, or small vortex generators, are strategically installed to mitigate this effect. Strakes reduce nacelle upwash, alleviating adverse flow effects, and generate vortices that energize the boundary layer, delaying flow separation and increasing lift. Parametric studies show that strake positioning and area significantly impact performance. Properly designed strakes can improve lift coefficient by 0.3 and delay stall by 3 degrees. #CFD #ComputationalFluidDynamics #aerospace #AerospaceEngineering #FluidDynamics #innovation #Performance #Engineering #Simulation #MechanicalDesign #mechanicalEngineering

Well, as we embarked on the journey of aerodynamics we came across the highly diversified field of compressible and incompressible dynamics of fluids mechanics. Further, we went on with the Performance Analysis of the aircraft of our choice. This Version of Performance Analysis was on: Boeing C-17 Globemaster III Aero Vehicle Performance Analysis Textbook Followed: "Aircraft Performance and Design John Dr. Anderson Jr" Reference: https://lnkd.in/d-Y6mMQ4 Supervision: Sir Izhar Kazmi Sharing for reference, feel free to ask questions #AeroVehiclePerformance #CAD #CFD #AVP #Aerodynamics #PerformanceReport #Aeronautical #Aerospace #Engineering #Research #MATLAB #Report