The hummingbird is a beautiful example too. All that rapid motion, all that turbulence, but evolution found a solution where the bird's head is...
I wouldn't say "never". The so-called "Great Oxygenation Event" caused the extinction of many of the (previously) dominant anaerobic lifeforms...
Of course we can't do much about forcing functions, such as the orbit of the earth around the sun, or even the solar energy impacting Earth...
A beautiful collection, as always from the APS. And they demonstrate why real-time fluid phenomena won't be appearing in computer games for a...
If humans were to build a large dam and change the course of rivers so that it deprived water to a large flat area of land, there would be no...
Montreal was an impressive success, but it has taken a long time to get to the levels of CFCs we have now and, as I said, it was much narrower...
There are some similarities to cavitating struts, but there are also notable differences. You are absolutely correct: the fictitious hollow...
OpenFOAM Described here: https://en.wikipedia.org/wiki/OpenFOAM Official page: http://www.openfoam.org/
Many of the papers that I cited also contain experimental data. The transom hollow idea might not appeal to you (I too have doubts about that...
I think they have duped many people into believing that actions will necessarily follow the carefully crafted words of the agreement. I have as...
Even if you can get the unobtanium for free, the boats will still require some administratium and regulatium to keep them afloat. (You can...
Also being discussed in another thread: http://www.boatdesign.net/forums/hydrodynamics-aerodynamics/cfd-state-art-54767.html
Of course, the disadvantage of transoms due to higher drag for some Froude number regimes is likely to be completely outweighed by other...
While we're on the topic of rescues at sea and "heroes", here's a photo of a window in honour of John Honey at the Uni of St. Andrews. For some...
That's why most people use Fnt, i.e. the Froude number based on transom stern draft, as you should have seen in the papers I attached earlier.
Both are required for some modelling calculations. For example, the length-based Froude number will largely determine the nature (e.g. crest,...
Many results in the papers and references I have supplied use the Froude number based on transom stern draft. Tuck and Vandenbroek found that...
Air conditioning makes it perfectly comforable. :) That's easy - I sleep during the day. :) I think I saw the sun in October, but couldn't...
They might well be very important at low-speeds, but I have never been interested in that regime. They would increase the eddy-resistance which...
It was 42C here yesterday, and we expect 42C today and 43C tomorrow. BDnet won't allow me to use words that accurately describe the current...
