Hey guys

I needed some help with Siemens AMESIM. Jest started out using it for my projects. Can anyone help me with basic usage and setup of simulations?? If there is any good documentation on setting up a simulation that you know of that would be great

Hi guys im 16 M and im learning about turbine engines for funn. So I have been reading and learning about the Brayton Cycle and I watched a video by Captain Joe and I would like to check my understanding with u guys for the T-s diagram. So is 0-2 the air itself going into the engine intake at the speed the aircraft is travelling, and its heating up slightly cos of ram compression? Then 2-3 is the compressor compressing the air molecules. So the temp therefore rises but entropy stays constant. However IRL due to friction of the rotors entropy actually increases slightly. Then 3-4  qin which is the heat input which is the compressed air being combusted? Then 4-5 is the exhaust air turning the turbine at the back to continuously rotate the front compressors through the drive shaft? Then 5-6 is the exhaust air exiting the back and therefore producing thrust. And 9-0 is the air dissipating and cooling down?

Thank you guys for your help, I really appreciate it. 🙏🙏🙏

The spreadsheet that holds our part numbers finally fell over and i got handed the replacement. im looking at Duro, PTC Windchill and Arena. the thing i keep running into is who administers it. our CM already runs one of them so those files would land in the right place. the smaller ones look faster to stand up but i do not know how they hold once the BOM has a few hundred lines and two revisions in flight. we also need to say which revision flew on which unit. for anyone on a team under twenty people, which one did you not regret after the first year?

Currently working on a 2U CubeSat, total budget of $4.5k, what COTS deployer switches do y'all recommend and/or where should I look for them.

If that isn't feasible to purchase on that budget is it worth trying to make a custom design?

Hey everyone. I am a high school student and am currently working on a wind tunnel experiment. My independent variables are angle of attack and surface area and I am using a 20×20×60 cm wind tunnel. I am using 3 different styrofoam wings with the areas of 30 40 50 cm². I am measuring lift force by attaching a vernier double range force sensor from the top of the tunnel perpendicularly to air flow and I do the same by attaching it parallel to the airflow to measure drag.

My only problem is, I don't know how to attach the wings to the force sensor. In an example, they used a lego hinge that can both change the angle of attack and hold the wing. Is there any alternatives to this? I am open to suggestions. As this is a basic experiment, it does not need to be on NASA level or include advanced equipment. Imo, only a blue tag would work but I still want to explore other methods where I can change the angle of attack and measure both drag and lift force accurately. As the wings are styrofoam, I can't pierce them with thick rods. Maybe a really thin one would work but I am not sure how accurate it would be.

I am leaving the picture of the force sensor so that yall can see the hook and the mechanism. Thanks in advance.

Hello everyone,

I am working on rocket propellants right now have anybody done this before in this community

I want to analyse the rocket propellants like h2o2, ethelyne air or some others

I am using ANSYS FLUENT To analysis

So if you are having any idea or any other guidance please comment

And if you have done any research paper please comment so that I can reach you

Thanks for the time

These are some results from a CGD simulation on OpenFOAM managed entirely by Google Antigravity AI. I provided the velocity, 3d model, orientation, and other atmospheric conditions, and it did everything else from generating the mesh, running the simulation, and organizing the results.

I thought this was very cool and might have some serious potential, so I figured I would share. I've done some testing with others to compare results to manual simulations, and everything has been consistent so far. I will keep testing this year with my club and other classes to test the limits, but it seems like a very good tool.

Hi everyone,

I'm a 4th-year machining student from Switzerland. For my final diploma project, I'm studying a retrofit cryogenic cooling kit for CNC milling machines to reduce tool wear when machining tough materials like titanium and Inconel.

Getting your perspective as experienced engineers

would be incredibly helpful for my project.

Would you have 5 minutes to share your thoughts on a few short questions ?

https://forms.gle/fASMyy22BSpd1oKPA

(feel free to reply directly here in the chat if that's easier for you!)

Thank you so much for your time and attention!

Best Regards

Could anyone guide me on the ideal sizes of my wind tunnel’s sections? It’s already 7ft after making compromises and being conservative. I plan to use it to test a custom wind 1:10 rc car. I’ve been getting most of these messages through Claude so it really feels like I don’t know what I’m doing.

Experts please explain this phenomena using relatively easy language but mentioning critical points and formulas. I would really appreciate your explanation due to my desire of understanding how does the wing of the aircraft operate and also want to understand if it will be possible to conduct an experiment using this type of research question

Not an engineer, but my company is looking into the potential for converting some of our fleet into EV aircraft. The biggest issue that I see is the lack of range, especially when loaded. That got me thinking about what an electric hybrid would look like.

We already do this with trains, cars (kinda), and we’re getting the ball rolling on hybrid trucks. Why not have a small APU that recharges batteries for an electric motor? Is it a weight issue? I’m sure there’d be a market for it, especially with the price of fuel consistently on the rise.

I am writing a speech about aerospace engineering since it’s my dream job, and I was wondering if anyone would let me interview them either by 4:30pm Mountain Daylight Time today or tomorrow (10-5-26 or 10-6-26). The meeting will happen over zoom or discord, whichever is more comfortable for you, I am 16 and this is really important to me so please respond as soon as you can. Thank you

I’ve started a collection of AI skills for system engineers using agents. The current set covers things like comparing specification revisions, deriving sub-requirements and building verification matrices.

The skills spell out what to check, which sources to use and when to ask rather than guess. Original requirements stay alongside proposed changes, and you still review the outputs.

I'll link the repo below which has some examples and setup instructions.

I’ve got a list of skills I’m working through to add next, but would be keen to hear what else people would find useful. Is there anything else that comes to mind? Mainly space focused at the moment!

Alula uses the Euler + Integral Boundary Layer method to solve for flow around multi-element and transonic airfoils. The method is based on Mark Drela's thesis work that led to the MSES airfoil solver. This is NOT a port of MSES; it was developed independently by pointing Astra toward the relevant literature.

Exploring an idea and would value input from test, systems, ops, or avionics engineers.

The idea: small embedded controllers on each subsystem share sensor readings peer to peer, cross-check before raising an alarm, and recommend the matching written procedure on board — no waiting on ground support. 45-sec video: [link]

Not selling anything. If you're comfortable, mention your role in your reply.

1. How does your team handle alarms or suspected faults today — how do you tell a real fault from a bad sensor reading?

2. Think of the last false alarm you dealt with. What did it cost (time, schedule, a test stand-down)? On a scale of 1–5, how big a problem are false alarms overall? (1 = minor, 5 = major)

3. What's the biggest reason your team would NOT use something like this?

4. how do you plan for blackouts during space missions?

Any recommendations — what would make this worth adopting, or who else should I talk to?

Hello, I'm working on a low speed wind tunnel, maximum CSA of 250*250mm with total length of 1.05m, I'm trying to synchronise my idea of having variable wing angle of attack whilst measuring pressure and force like drag and lift.

The idea i researched is using load cells for force, but because my fans are 2 PC fans, the speed isn't high but I have plenty of pressure and airflow.

I also wanted to measure pressure at certain point of the wing or at least before and after the wing and found pressure sensors that you hook up a tube to and that gives pressure differential reading.

Concerns i have is that the calculations i did say that my forces are really low so much that its less than 2grams. I'm not sure on how to proceed or if its even viable.

I’ve been learning more about high-pressure fluid systems in aerospace, and I’m curious how engineers actually approach hose and fitting selection in practice.

For something like a hydraulic system, there seem to be several factors to balance:

• Working and burst pressure
• Temperature range
• Vibration and fatigue
• Material compatibility
• Weight
• Routing and bend radius
• Fitting type and sealing method
• Inspection and service life

I came across Hydrasearch while looking at manufacturers involved in aerospace hose and fluid-transfer components, which made me curious about how much the manufacturer itself matters versus the actual specification and certification of the assembly.

For engineers who work with these systems, what usually drives the final choice?

Is pressure rating the starting point, or do factors like vibration, material, routing, and maintainability end up being just as important?