The flow condition of a fluid system when one of the fundamental nondimensional parameters has a critical value, for example, flow of water in an open channel at a Froude number of 1, flow of gas at a Mach number of 1, flow in a pipe at Reynolds number greater than 2100, or shear flow in the atmosphere at Richardson number less than 0.25.
Where did the Vikings come from? The Vikings came from the countries which we know now as Denmark, Norway and Sweden. We refer to the area that these countries are located as Scandinavia. The Vikings lived mainly along the coastlines of these countries or along the rivers which ran into the seas.These are the Vikings that left their lands to explore, invade and settle in other lands, Some Vikings did live further inland but, like most settlements and villages, they were often located near to rivers.he Vikings lived mainly along the coastlines of these countries or along the rivers which ran into the seas. These are the Vikings that left their lands to explore, invade and settle in other lands, Some Vikings did live further inland but, like most settlements and villages, they were often located near to rivers.
They were originally from Norway, Sweden and Denmark, but they later settled in Iceland, Greenland, Britain, Russia and even Newfoundland in Canada. They were originally from Norway, Sweden and Denmark, but they later settled in Iceland, Greenland, Britain, Russia and even Newfoundland in Canada.he name Viking is a loanword from the native Scandinavian term for the Norse warriors who raided the coasts of Scandinavia, the British Isles, and other parts of Europe from the late 8th century to the 11th century.