Better aerodynamics reduce fuel consumption, and thankfully, car manufacturers work on aerodynamics for the European market. But fuel economy is not only important for land vehicles. As we know, it’s very important for aircraft, but also water vessels should improve their fuel economy. A lot of fuel is used for cargo transport by ships, but if we can improve their hydrodynamics, we can reduce their fuel consumption.
One way of reducing their fuel consumption, is off course reducing their drag. This can be done by making their surfaces more rough. This is contrary to our intuition, but this study done by the UCLA proves that the right sort of roughness can reduce the friction drag of the ships. This will reduce the fuel consumption and that will in turn reduce the global warming.
I think that a lot of research has to be done on fuel economy for ships, but should there also come some sort of regulation about the fuel consumption, like there is for cars now?