Hey everyone, I'm Josh! On this channel, you'll find videos about whatever I happen to be interested in at the time, usually (but not always) pertaining to science and engineering. I don't have a regular upload schedule, and I skip around from topic to topic. Hopefully some of my videos can be helpful or interesting!
If you have any questions or comments, feel free to reach out.
Amazing video. I have a quick question, if you have the time. What is the minimum temperature difference that can be shown in this setup? Can heat rising from a human body be shown like this? Thanks very much.
This is brilliant! I finished college many years ago, but I still use notebooks for notes on books I'm reading so I won't forget. I've made "cheat" sheets for my son, who is dyslexic, on books he has to read for school with characters' names, settings, events, maps, and pictures. Grid notebooks are my favorite.
I like how you get to the point immediately. The inclusion of the diffuser makes sense but is also kinda counterintuitive. The afterburners are there to increase the velocity of the gases but to utilize them optimally we need to slow down the gasses first. I imagine that tuning the diffusers must be quite a challenge. To have a design that results in the maximal net velocity gain.
Hi Josh, excellent video and I have learned a lot. I have a question where if the default location of the thickness is not 30% of chord but at 23% of chord, what is the thickness distribution equation? Thank you.
thanks for this video!! awesome!!! here my some more ideas, we can do this discrete data integration using sum(udx+vdy), capture the variables along the circle and just do the summation!!
I'm in Aerosapce Engineering, having a hard time wrapping my head around these shock wave formulas. How do they take into account an aerodynamic or bluff body, for example? Say if we needed to calculate those ratios at different stations around an airplane fuselage, in an engine with an aerospike, a hyperloop train, etc?
It seems to me that for a symmetrical airfoil, you can get a surprisingly decent approximation with a half ellipse ending at 30% chord, then a tangent circle arc to hit the trailing edge at the centerline (not perfect, but close enough if you just need to draw a visual aid rather than plotting the airfoi). I wonder if the equations simply to something similar, or if it's pure coincidence
How much horsepower does a 2016 Challenger Hellcat At .356 drag coefficient at sea level (Kennedy Space Center) need to go 215mph? Will 1000whp get me there with proper drive ratio?
I have all references with doi. Do you know if I can activate them using JabRef? By 'activation," I mean clicking on doi from my reference list opens a specific article.
I’d guess this analysis overestimates the mass flow rate as you took the area as the circle of the fan rather than the annulus area. Great video nonetheless. Thanks
Fantastic video. I work in a wind tunnel at university. I've been reading Settles book on Schlieren, but he doesn't describe the pros/cons/differences between parabolic and spherical in much detail.
so heres a real world example: jaxxa slim moon lander lost one thrust nozzle at about 50m above the surface of the moon, how much thrust was lost due to having no thrust nozzle, assuming it broke off at the throat of combustion chamber. Can anyone give an estimate based on the above maths of percentage of thrust lost?
Someone replied it would be almost zero thrust, seems that post is deleted, anyone got any ideas on this, the jaxxa slim nozzle that blew off seems exit area is quite large compared to the throat area, someone must have some idea on this?
What happened Josh? Where are you? Did you get married? Thanks for these amazing videos, it is very open-minded and mind-blowing. And it looks really easy with your explanation. I just couldn't reach the website. Can you check it? So we can reach those documents and other gems in there.
