If you have a U-shaped pipe like the attached image, with more fluid in the left column than the right, then the fluid will level out basically because of Pascal's Law. Force on the fluid is exerted on every part of it in equal direction etc..
So when the fluid levels itself it flows across to...
I wanted to use Bernoulli's equation initially but unfortunately it seems to 'fail' with one of the basic test cases:
If you have an L shaped pipe filled with liquid, then each parcel of liquid along the bottom will have pressure = height . So if the vertical part of the L was 10 high the...
So if a 1 kg parcel of liquid collides with some other body of static liquid , you could simulate it with:
1. Convert the velocity of the colliding parcel into kinetic energy using kineticEnergy = mass * squared(velocity) / 2 .
2. Divide that kinetic energy evenly across each parcel / cell in...
Ok that makes a lot of sense thanks.
Is there a situation where the kitchen water is traveling so fast that is smashes through the water at the bottom of the U pipe? So effectively the water at the bottom is not able to slow the incoming jet down enough to 'capture' it?
If so I assume it's a...
Maybe I'm getting mixed up with viscosity and also turbulence. If I have a U shaped pipe and run one end under the kitchen faucet then it's easy to spray water out the other side.
If you have that same U shaped pipe but it now has a horizontal branch coming off it at the bottom, it will still...
Sorry I should've made it more clear. The summary of the question is what happens during a liquid 'collision'? Does the momentum from the collision go to the nearest openings or does it get spread out evenly for all openings, due to Pascal's Principle?
Because if the momentum / energy does...
Take a U-shaped piece of pipe, standing upwards. Fill the bottom part with liquid and leave the 'prongs' open. Now slam a parcel of liquid into one end at high speed. The other end will experience some momentum exchange and go pushed upwards.
Now take the same test case and add some piping...
Thanks for the replies. It seems my problem is the time step size as suggested.
For example if you have a 1000 meter square, 1 kg sail moving downwards at 1 m/s, it gives an upward force of around half a million N. That is obviously stronger than the downwards force of gravity. My mistake...
I'm trying to add flight physics to a 3d game. When I try to calculate drag I sometimes get a force that pushes the aircraft backwards if I make the wingspan very large (for example).
I have set up a simple scenario: A flat rectangle sheet falling down due to gravity. If I make the gravity...
Webber, just have a glance at some of the ornithopter forums and it should give you a good idea of their evolution and issues they've run into along the way.
I'm also a do-it-yourself type of guy but in this case it seems like you'll spend a lot more time and money trying to build it yourself...
Personally I would recommend building the aircraft first using off the shelf components. During that process you'll come to understand the internals of the radio transmitter, receiver, control boards etc..
You will find there are areas that are very, very complex and really require a PHD to...
Yes I apologize because I wasn't sure I was even understanding the concept correctly. So if it is just for non-discrete type problems could I try to ask my question in a different way?
For any coin that's flipped an infinite number of times, it must land on H or T at least once? In other...
"Almost Surely" vs "Surely"
I'm struggling to understand the concept of "Almost Surely" in probability. I've read the wiki article ( http://en.wikipedia.org/wiki/Almost_surely ) and looked at some old posts on this forum but there's something I still don't get:
Given a theoretical coin that...
I think the question your really asking is why does the X axis go to the right and the Y axis upwards. Because if the Y axis pointed downwards (for positive direction) then you'd have the compass style of angles you talk about.
When people draw graphs they often only need the positive parts...