Inviscid flow Inviscid flow Inviscid flow is the flow of an inviscid fluid, in which the viscosity of the fluid is equal to zero. Though there are limited examples of inviscid fluids, known as superfluids, inviscid flow has many applications in fluid dynamics. The Reynolds number of inviscid flow approaches infinity as the viscosity approaches zero. When viscous forces are neglected, such as the case of inviscid flow, the Navier-Stokes equation can be simplified to a form known as the Euler equation. This simplified equation is applicable to inviscid flow as well as flow with low viscosity and a Reynolds number much
German resistance to Nazism of resistance in the Third Reich. In particular, debate has focused around what to define as "Widerstand" (resistance). Within both the Federal Republic of Germany and the German Democratic Republic, the memory of "Widerstand" was harnessed after 1949 as a way of providing legitimacy to the two rival German states. In East Germany, the focus was unabashedly on celebrating the KPD, which was represented as the only anti-fascist force in Germany; non-Communist resistance was either ignored or slighted. In East Germany, historical work on the subject of "widerstand" was highly politicized and portrayed members of the KPD resistance as heroes.