When the water is moving slowly, it's easy. Think of the water in the pipe as a series of thin-walled concentric cylinders, one inside the other, each sliding relative to its neighbours. This is more than just a convenient image. It gives a good picture of what's really going on. T...
about 0.17 litres/second - so 15mm pipes would be quite big enough if the owner ever decided to install one. A five-minute shower only uses about 30 litres of hot water. That's why it's cheaper to shower than to have a bath. It's cheaper still when you share with a friend, ...
Results of impact noise measurements are shown Fig. 6.35a. A notable drop in signal amplitude occurs when the hydro-abrasive jet hits and cuts a reinforcement bar. However, due to the curved jet trajectory, the signal is being displayed with a slight delay. Similar is the situation in Fig....
For starters, water that measures 300 degrees Fahrenheit or 150 degrees Celsius (which is the lower temperature range of exhaust pipes) can already cause third-degree burns. Just imagine if you were unfortunate enough to brush up on the exhaust pipe at its peak heat! To prevent this from hap...
In that case you would expect the pipes to be noisy when the water is running. To make them quieter, the water has to be slowed down, and this is actually very easy to do. Any competent plumber installing a system will have included valves at strategic points, so that sections of the...
which means that when the water leaves the top of the pipe it is moving at 4.7 metres/sec. How high will it go? The equation I learnt at school relates speed and distance for a body moving under gravity like this v2= u2- 2 g s ...