Nota: A tradução desta entrada está atualmente em revisão de qualidade, portanto parte do conteúdo é exibida temporariamente apenas em inglês.
Este verbete ainda não foi traduzido para o seu idioma, portanto o original é exibido abaixo.
inviscid
This term is primarily used in fluid dynamics and theoretical physics to describe an idealized fluid that flows without any internal friction. It is a technical descriptor used to simplify complex mathematical models, such as in the Euler equations, where the effects of viscosity are ignored to make calculations tractable.
In a practical sense, no real-world fluid is perfectly inviscid, but gases or low-viscosity liquids are often treated as such in specific contexts. It is the direct antonym of viscous and carries a neutral, scientific connotation rather than a descriptive or sensory one.
Meanings
Examples
The Euler equations describe the motion of an inviscid fluid.
Assume the liquid is inviscid for the sake of this calculation.
An inviscid flow has no internal friction between its layers.
Is the gas treated as an inviscid medium in this model?
The theoretical model assumes an inviscid fluid to simplify the math.
In a perfectly inviscid fluid, there is no drag force.
We can ignore viscosity by treating the flow as inviscid.
The boundary layer is where the inviscid flow assumption fails.