Recent content by Vale-46

From what I gather, diesel engines are heavy for their power output (ignoring the fact that they don't rev very hard) is due to their high compression ratio. The latest diesel engines in cars are dropping their compression ratios and becoming more like petrol engines so a mechanic friend was...

I've just been given a quote on some strain gauges I'm after and the adhesive but I've got a 4-6 week wait from this supplier and I want somewhere else to compare against price wise. If I can get them sooner rather than later it would be cool too. Any suggestions? My searches in Australia...

Learning how electromagnets work would be your starting point.

Keep in mind that the main obstacle to getting a bicycle to go faster is the overcoming of wind resistance which has a power requirement that goes up in proportion to velocity cubed. Something like 80% of power is required to overcome this over ~35km/h. Weight does not play a part in this...

Lol. We got shown the videos across multiple subjects with every professor seeming to think they were the first ones to show it to us.

I'm wanting to measure the torque output of a cyclist by measuring the shear force induced in the crank arms. I've done some calculations for the minimum amount of strain that I'll want to pick up and it is around 6e-6 m/m. I'll be using a full wheatstone bridge with a constant voltage...

The only way I can see you getting a net gain in energy is from either of the following: 1) the wind turbine runs when the car is sitting parked somewhere. 2) the wind turbine has its cover opened to oncoming wind when you want to slow the car down. This will lessen the torque that the brakes...

He didn't say in particular, but have a quick look at these papers - they might answer your question: http://74.125.155.132/scholar?q=cache:NEjQReiRZIgJ:scholar.google.com/+cfd+submerged+bridge&hl=en&as_sdt=2001"...

Some things that come to mind that might be of use: A lot of r/c car engines run on methanol/nitro/oil which is not cheap at around >$10US per litre. The r/c car I had 10 years ago was 0.12cu inch/2.04cm^3 capacity which supposedly would put out 0.5hp/~375W. It produced this power at around...

I'm unsure how long this would take you to do in a lab, but it might be something to check out. Instead of bridge aerodynamics, get some experimental data on bridges completely submerged with water flowing past (like when you get flooding over a bridge). In a search of papers in this area, it...