LEAP Australia’s Post

Simulation of the week: CFD for 35th America’s Cup in Bermuda. The first part of video shows a take-off simulation in which the rake of the daggerboard is controlled by a PID controller to achieve a pre-determined flight height. The second and third parts show a daggerboard drop simulation in 3D. Hundreds of such simulations were performed for different daggerboard shapes at different boat speed and set rake angle. Ventilation and cavitation were monitored during the immersion process. The next simulation also shows a daggerboard drop test but in 2D, which also includes laminar to turbulent transition and the cavitation ‘bubble’. The next two simulations show cavitation, with the first using the calculated cavitation bubble in the upper (suction) side of the daggerboard based on the pressure drop. The second however is a simulation with a more detailed cavitation physics model enabled. The last two movies show velocity and vorticity fields for a 2D daggerboard section obtained by running Large Eddy Simulation. See our case study for more details: https://lnkd.in/dbcdTU4 Dr.-Ing. Rodrigo Azcueta has been at the core of simulation based America’s Cup and Volvo Ocean Race design campaigns for 15 years, always pushing the boundaries. Our designs and engineering solutions have helped three sailing teams win the famous Around-the-World Volvo Ocean Race.  As Head of hydrodynamic CFD for four America’s Cup Challenges including AC35 for the British America’s Cup Team, we have built our reputation upon a racing pedigree and winning formula. To see how we can assist your design team on your next project, please view our website: https://lnkd.in/gDNNmyf #superyacht #yacht #composites #carbonfibre #racing #innovation #technology #corporatesustainability #americascup #cfd #designoptimisation #performance #marine #maritime #efficiency

Successful meeting for initial aerodynamics simulation of F1 car

learn some aerodynamics 

🚨 Registrations close in 2 hours for the F1 Aerodynamics and CFD Workshop and we have just 2 seats left !! If you want to learn how F1 teams setup high fidelity #cfd #simulations then this is your opportunity to learn and interact with 2 mentors having worked in F1 Aerodynamics. 👉 DM me for details #f1 #aerodynamics #aerospaceengineering #mechanicalengineering #automotiveengineering #motorsport

Unveiling the Aerodynamics of a Golf Ball: Insights from CFD Simulations Flow over a golf ball is a fascinating example of fluid dynamics, specifically involving concepts like boundary layers, turbulence and drag. The dimpled surface of a golf ball significantly affects the way air flows over it, which in turn influences its aerodynamics When air flows over a smooth sphere, such as a golf ball without dimples, the air layers (boundary layer) adjacent to the ball stick to the surface due to viscosity, creating a thin region where the velocity changes from zero (at the surface) to the free stream velocity (far from the surface). As the air flows towards the rear of the ball, it tends to separate from the surface, creating a large wake region of low pressure and high turbulence. The flow separation results in increased pressure drag. The dimples on a golf ball induce turbulence in the boundary layer. Turbulent flow has higher energy than laminar flow, allowing it to stay attached to the surface of the ball longer before separating. The delayed separation reduces the size of the wake region behind the ball, thus lowering the pressure drag. By using CFD simulations, we can gain insights into various aspects of the flow, such as velocity profiles, pressure distribution, the characteristics of the boundary layer and wake. CFD allows for the detailed study of the boundary layer, which is crucial for understanding drag reduction mechanisms. For a dimpled golf ball, the boundary layer transitions from laminar to turbulent flow due to the dimples. The transition increases the energy within the boundary layer, allowing it to stay attached longer and delay separation. Dimples help in maintaining higher pressure over a larger portion of the ball's surface, reducing the pressure differential between the front and back of the ball, thus lowering drag. The front stagnation point has high pressure, while the rear wake region shows a significant pressure drop. #Fluidmechanics #Aerodynamics #Computationalfluidmechanics #CFD #CFDAnalysis #ANSYS #ANSYSWorkbench #FLUENT #Flowsimulation #Turbulence #Drag #BoundaryLayer #Science #SportsEngineering #SportsScience #Sport #Golf #Flight #EngineeringInsights #Numericalsimulation #Velocity #Externalflow #Pressuredistribution #3Danalysis #dynamicmesh #remeshing

The first lesson of school. Aerodynamics.

🔊 Webinar announcement! 🗓️ Next week, join Andra Mantighian and Motorsport Engineer for a webinar discussing CFD and common issues in understanding the mathematical concepts that drive it! 🎯Get insight into the complex perspective necessary for mastering computational fluid dynamics and how engineers use CFD for thermodynamic and aerodynamic developments. 🙋We'll end the webinar with a Q&A session where you can ask Andra any question you may have! 💻 Register now and save your spot! 🔗 Full details: https://lnkd.in/ejqE7-ka #webinar #motorsportengineer #cfd #careeraccelerator #numericalmethods

Computational Fluid Dynamics (CFD) in Cycling In the adrenaline-fueled world of cycle racing, where every millisecond counts, athletes and engineers are constantly seeking that elusive edge to propel them to victory. With the cycling industry worth more than USD 9,000 million in 2022 and growing at nearly 8% annually between 2022 – 28, high performance cycle design is becoming increasingly dependent on Computer Aided Engineering (CAE) tools to seek out the last bit of performance from the equipment. Computational Fluid Dynamics (CFD) is one such tool which stands out for its pivotal role in optimizing performance. In the quest for speed and aerodynamic efficiency, CFD has become an indispensable ally, revolutionizing the way cyclists and teams approach the sport. For more details, Read the blog: https://lnkd.in/g3FPAx6m #FluidMechanics #Aerodynamics #cyclaerodynamics #Aviation #computationalfluiddynamics #mechanicalengineering #Aerspaceengineering #windengineering

Computational Fluid Dynamics (CFD) in Cycling In the adrenaline-fueled world of cycle racing, where every millisecond counts, athletes and engineers are constantly seeking that elusive edge to propel them to victory. With the cycling industry worth more than USD 9,000 million in 2022 and growing at nearly 8% annually between 2022 – 28, high performance cycle design is becoming increasingly dependent on Computer Aided Engineering (CAE) tools to seek out the last bit of performance from the equipment. Computational Fluid Dynamics (CFD) is one such tool which stands out for its pivotal role in optimizing performance. In the quest for speed and aerodynamic efficiency, CFD has become an indispensable ally, revolutionizing the way cyclists and teams approach the sport. For more details, Read the blog: https://lnkd.in/g3FPAx6m #FluidMechanics #Aerodynamics #cyclaerodynamics #Aviation #computationalfluiddynamics #mechanicalengineering #Aerspaceengineering #windengineering

How good are Porsche aerodynamics?! Look at the attached flow (as indicate by the near straight tufts) behind the engine intake side scoop on my 981 Cayman. Separated and attached flows - a topic I cover in some detail in my new book on car aerodynamics, to be published mid-year.