fluid dynamics - Lift of an airfoil: viscous vs inviscid results ...
Dec 2, 2019 · 2 I am trying to understand the difference between the lift computed with an inviscid solver (Euler equations) and the one computed with a viscous solver (Navier Stokes equations). At this …
Does irrotational imply inviscid? - Physics Stack Exchange
Behaving in an inviscid way and actually being inviscid are technically two different things. One could argue that—even though the fluid behaves inviscidly—it is still a viscous flow because the kinematic …
classical mechanics - Difference between inviscid and viscous flow ...
May 11, 2016 · In my lecture notes, I have a load of examples and I want to sort out which egs are viscous flow and which are inviscid flow. It is not always said if the flow is viscous or inviscid. Please …
Frictionless and inviscid - Physics Stack Exchange
Jun 25, 2015 · In the book Fluid Mechanics by Robert A. Granger, there is a study question, 4.10, asking "How can frictionless real fluids exist and inviscid fluids not exist?" Could someone please explain? ...
How can the panel method be used to find drag and lift if it is for ...
Oct 21, 2023 · Most Aerospace Engineers would not consider XFoil and VSPAERO to be 'CFD'. Even though they are certainly computer programs used to study fluid dynamics. These are 'panel codes' - …
Why does Bernoulli's equation only apply to flow along a streamline ...
May 31, 2016 · The equation applies only to inviscid fluids because fluids with significant viscosity experience viscous energy losses, which are not conserved: the energy lost due to viscous friction …
Fluid Flow and Reynold's number - Physics Stack Exchange
Aug 24, 2018 · I am assuming that by ideal fluid you mean inviscid fluid. For a flow to be called turbulent, as distinct from a complicated laminar flow, it must possess a few characteristics (see A first course …
fluid dynamics - Bernoulli equation for compressible inviscid flow ...
Apr 12, 2025 · I am studying compressible flow and I want to derive the compressible inviscid flow Bernoulli equation. The main $3$ equations are: $$\frac {\partial \rho} {\partial t} + \nabla \cdot (\rho …
Potential flow over a sphere in circular motion
Dec 11, 2024 · The potential for a sphere moving in a straight line with a constant velocity U in an incompressible, inviscid and irrotational fluid is given by the following potential: $$ \phi =−U \left …
Bernoulli principle (classic form) in irrotational viscous flow (a ...
Jun 11, 2024 · We derive the Euler equation for inviscid flow. Then, for irrotational flow, we use the Euler equation to get Bernoulli equation (classic form) and show it holds in the irrotational region (still …