Practical Engineering - 2015-10-08
I was commissioned to build this model in support of a presentation about geotechnical engineering. The goal is to illustrate the flow paths that groundwater takes under an obstruction (e.g. a sheet pile or cutoff wall). So much of engineering is just theoretical work, so it was really cool to see such an elegant example of a geotechnical engineering concept borne out in real dirt and water. Thanks for watching and let me know what you think.
I learned about streamlines and potential flow in one of my advanced fluid dynamics classes but never saw a practical example of the flow in action. Thanks for the hard work, visualizing these things makes all the difference!
yeah I always wanted to know the practicality that I learn from calc 3
So if mercury is dumped in one township it can skip over several other townships to start poisoning the water supply of another.
Are you trying to tell me that someone poisoned the water hole?
+lash
"it will just seep under the closest wall and come up on the other side"
That is if it has significant head pressure on one side of the wall.
If there is only a slight difference, this test does not really provide what would happen.
Eugene S Smith now we’re talking haha
.
no ill just take a dump on your porch.
I think I found a new channel to be addicted too...
Is it my channel?
Trayfen O'Donnell g vet cx
+Jesse Solozano
lol ahhh shaddup. You don't know.
too plus too equals fore guys
Me too. :-]
What sorcery is this? Why doesnt the water flow Straight down?
Christopher Manoff
Water is composed of an equilibrium reaction H^+ + OH^- ,=` H2O.
The Ions act in more or less the same way as e- (electrons) do in what's know as electricity.
That's why most liquids conduct, and metals due to delocalised e-.
rnci same answer, the ones near the wall have less pressure
basic principle is that dirt is heavier than water so water stays on the top, but with enough water gathers on the surface it begins to weigh more than the dirt and pushes water through until it reaches equilibrium
It's basically communicating pipes in way slower, isn't it?
You are all wrong. It is sorcery.
Your narration reminds me of the "How It's Made" videos on Science Channel.
I like "How It's Made".
Matthew Jiang that show is so relaxing lol
I can understand this and it feels intuitively correct when considered, but I'd never have thought to consider it; Thanks.
Reminds me of magnetic fields.
This is very cool. Totally not what I was expecting! Interesting video.
+Alipasha Sadri what's the name of it?
@HCN 27.0253g/mol I think it is Laplace equation.
+Alipasha Sadri thanks
Welp, this is a laplace equation after all, something you encounter a lot in electromagnetism.
How does this translate in a macro scale? There's a huge aquifer below Albuquerque, NM. Does the water flow through dirt, or is there a huge channel under the city?
+Andrew H
Damn! it's like you were in my mind painting a picture. you should teach school or something.
+Andrew H
Damn! it's like you were in my mind painting a picture. you should teach school or something.
How does this work if you place rocks and pockets into the model?
The alliteration and consonance are strong with this one.
Wordengineer.
This reminded me of "There will be blood"
I drink your potassium permanganate. I DRINK IT UP!
Your comment made me laugh so hard.
Ariel Artunduaga : )
You get that from my research ?
I am a maintenance electrician in wastewater treatment and I am fascinated in all of the civil engineering things that happen in our world that no one really thinks about. When we need to shut the plant down for short periods of time in the summer for maintenance work, it surprised me to hear that some work requires it to be dry for up to a week because of all of the water in the ground still making its way to the piping underground. Apart from this summer, a week of no rain in Seattle is not exactly common.
But I love your projects, thank you for sharing.
I'm guessing you do those jobs the same month every year. Perhaps July 10-Aug.10?
This was hidden from me when I was a student at the university
"Mechanical Engineers design the weapons and Civil Engineers design the targets." (╯°□°）╯︵ ┻━┻
On behalf of all citizens, I thank each and every type of engineer for doing what you guys do best.
Ralph Angelo, I am an 80 year old engineer, and you are the first person I know who actually went out of his way to thank the engineers for what they provide to society. Normally, the public thanks and tips , waiters and barmen who pour out their drinks! All other "social and humanitarian and artistic and philosophical and legal and caring and doctors and religions etc. they had 10,000 years to improve the conditions of the family, but all they did was to provide the family with verbal soothing drugged sentences while people lived on earth and promised the people to have faith in gaining comfort in the afterlife and when we are dead. Meanwhile the world was full of dirt, plagues, sexual transmitted diseases, poverty, dirt roads, London was full of horse manure due to horse drawn cabs. Engineers in less that 150 years changed that philosophy to having comfort on this earth rather in the afterlife and so provided closed sewers, electricity, clean running water, soap, engines to produce more food and more fishing, ALL THE TANGIBLE GUARANTEED COMFORTS IN AND OUTSIDE OUR HOME, transport on land sea and sky, better medicine, all the surgical and other equipment at hospitals, all the clothes we wear, and so much more and more.
Sir thank you for your observation as which profession did improve the conditions of the family AND ALSO IMPROVED THE STANDARD AND STYLE OF LIVING of all the other professions who provide only unguaranteed emotional services to the family.
From a fellow CE, thanks for putting a visual model to a mathematical model. Well done.
Make that two :)
I'll let you know what I think: "I think it's AWEsome"
Amazing demonstration. I finally get what these figures mean. Thank you!!!
I spotted some alliteration! :D
"devotion to dirt" and "reverence to rock"
Wow, one of the most impressive things I've ever seen.
As a PhD in material science I am always looking for nice ways to illustrate engaging concepts.
You do a great job of it.
Nope, not convinced with this science stuff.
Burn the witch at the stake! I didn't think water is supposed to do that!
:p
This is like the movie, "There Will Be Blood", " I stick a straw on the ground on my land that sucks all the milkshake on your land".🤣🤣
0:16 and aerospace engineer's design the planes to deliver the mechanical engineer's weapons
+mettsenator and chemical engineers make the fuel and explosives for those planes.
And software engineers make sure those weapons break down and you have to turn them off and on again every few hours.
Famine and pestilence don't really sound like the makings of a good party.
비니보이 Men. I think we just found the solution world peace
Wow. 1:30 I actually drew the same kind of equipotential graph in my college physics class. But for an entirely different subject, electricity. :-)
It's fascinating how these two seemingly unrelated fields can overlap.
There are more. Compare the pattern of stresses on electrical insulation, it's similar to the pattern of mechanical stresses under load, specially at high voltages.
THAT was cool. I've read of this, but never saw such a clear example. Thanks for sharing.
Such a great time having known you and marvelous efforts and also we're looking forward to seeing and earning from you
It would be amazing to see one of these kinds of models demonstrating the function of those ancient Peruvian wells/air ducts: Puquios
I was thinking to ask why is this important, how does the demo affect my everyday life, and other thoughts. Then I realized ... yea ... I don't care.
Great video! I've been a professional hydro-geo for 12 years (incidentally sometimes using potassium permanganate as a remedial amendment) and really enjoyed watching this demo.
Thanks for the demonstration! At first, I thought the lines were superimposed because of how well defined they were. Cool to see how it actually works.
Loved it! More models please!
As a non engineer, this fascinate me. Question: what does one do with this info? How does one design around this or with it in mind?
+Peter XYZ That's a complicated question but I can give an example. When designing a dam, the greater the uplift pressure from groundwater, the lower the stability. So many dams have cutoff walls into the ground like the model to try and reduce that pressure.
Thanks for the enlightenment.
almost everything is on the ground or sitting on something on the ground.
Me: rockets.... planes...
This is a great demo! I used to work in a soil mechanics laboratory squeezing wet clay samples all day and doing darcy permeability measurements.
Keep the demos coming!
Been in youtube for a while now, Glad I came Across your video,
I'm A civil Engineering student here in the Philippines.
Great Model!!
+Renz Thanks!
When this dude talks I swear my mind automatically tunes it out
how much of the video do you watch?
I'm really glad I found your more recent videos so that I could find these gems! What an awesome visual to explain something that most of us have never given a single thought to, and paired with some great writing!
I have never seen this demonstrated so well. I might make one of these just for a bit of fun. Brilliant channel bud.
Reminds me of my Geotech class in college. thanks for the throwback!
That was great! Love your narration!
Awesome! Thank you so much for the efforts you put in sir. I know about the flow net but never saw how it works practically. Your channel is a real gem for our civil engineers
Oh wow the model drawing is so accurate to what I do in my engineering class
THAT IS AMAZING .. AND REALLY IT'S HELPFUL ..i love civil engineering ...thank you very much.
I feel stupid. Some of this genuinely went over my head. And I just wanna know how it worked.
0:27 ISS ;-)
This is amazing...
Before watching this video...
I thought that such type of flows are theoretical i.e. only a theoretical part of soil mechanics "FLOW NET THEORY" or fluid mechanics and exists in books only... But this video practically demonstrate it...
Good Job 👌..👍
Great video, Grady. That was fun to watch.
This is more thoughtful than my engineering class of Geotech. thanks a lot!
i am glad that i got lost. great video
dMb - 2016-06-09
Haha geotechnical engineering is beneath civil engineering. (ba dum CHA)
Paul Lawrence Cortez - 2019-03-10
Why would you say that? Geotechnical engineering is the foundation of Civil Engineering. (Ba dum tosh)
Jennifer - 2019-04-06
They may THINK geotechnical engineering is beneath them, but they'd never say it. It just wouldn't be civil.
David Henningson - 2019-04-08
... and Elecrical Engineering, is the most "energizing" of all the engineering disciplines 😌
Soda_ _Vibe - 2019-04-09
@David Henningson Humble chad enlighting all those engineers.
Daniel Wallace - 2019-05-23
@Soda_ _Vibe Whereas structural engineering is both enlightening and enstrengthening.