Hello Everyone , For all of you'll who have wanted to get an insight into how CFD is applied in Motorsport's , F1 and the high performance automotive cars. There is a new course on Udemy. This course is designed such that , students can explore and apply the fundamental principles of CFD in motorsports, gaining practical insights into its application in aerodynamic simulation and analysis, vehicle performance optimization, and design validation. Each section of the course is crafted to provide a balance of theoretical knowledge and hands-on experience, ensuring that students are exposed to th ..read more

Is bulk velocity just the max velocity divided by 2? submitted by /u/Negus69th [visit reddit] [comments ..read more

Hello! I am writing a bachelor's thesis on the electrification of a ROV Grinder for subsea use. The grinder needs to withstand depths of 2,000-3,000 meters and corresponding pressure. To compensate for this pressure, the gearbox is filled with oil, possibly Tellus-22. When the gearbox is completely filled with oil, I wonder how this affects the gears? The oil will create resistance, but I am unsure about how much resistance? I have tried to calculate the drag force from the oil on the first gear, but arrived at a very high and unrealistic number: Drag force: Fd=12⋅ρ⋅v2⋅A⋅Cd=12⋅852⋅11.52⋅π⋅(0 ..read more

For the steady 2D flow bounded by two surfaces, i.e. between plates or in a pipe, the boundary layers grow and eventually meet in the middle. Once they have met, the overall velocity profile no longer changes with x, and thus the flow is considered fully developed. But for flow over a flat plate with no upper boundary, the boundary layer goes to infinity as x goes to infinity (albeit increases as the sqrt of x, but still goes to infinity). Therefore since the boundary layer never stops growing, the velocity profile never stops changing, so can it ever be considered fully developed? submitted ..read more

submitted by /u/Ok-Palpitation4941 [visit reddit] [comments ..read more

Hello I believe I am having a mental breakdown and missing something huge or overcomplicating lol. Say I have a slurry, 30% solids in weight. The solids density is 3. The slurry has a flow rate of 500 m3/hr. How do I get the dry solids mass with this data? All I’ve seen assumes solids in volume, which to me cannot be the same. TIA submitted by /u/inesmluis [visit reddit] [comments ..read more

I have seen many videos of laminar flow of water from some special nozzles but this last minute exam guide book says its theoretical , I don't have any in depth knowledge in this field so I might sound stupid . submitted by /u/qoqius [visit reddit] [comments ..read more

Hi Hope you guys are doing well! I s there any Reddit forum for Experimental Fluid Mechanics? I have started working in experiments in Vortex induced Vibrations for Energy Harvesting. Thanks, and Best Regards submitted by /u/General-Fun3709 [visit reddit] [comments ..read more

Hi everyone, I have a thought experiment that is itching my brain. Let's say I had 2 x centrifigul pumps (same model), both having exactly the same suction configuration, both having a 25mm outlet on the discharge side. They are pumping water. For its discharge, pump 1 has 25mm pvc pipe that extends 50m vertically. For its discharge, pump 2 immediately expands to 40mm pvc pipe (with a pressure pvc 25 - 40mm reducer if it matters), which extends 50m vertically. Let's say according to the pump performance curve there is no flow at 30m head. For which pump will the water reach a greater height ..read more

​ https://preview.redd.it/kq7imdmqvowc1.png?width=401&format=png&auto=webp&s=ea6eec349c772fe70158ca3242ebbd538a40a7f8 submitted by /u/Electronic_Oven_4022 [visit reddit] [comments ..read more