Why compare viscous flow to inviscid for external and internal flows?

Click For Summary
Comparing viscous flow to inviscid flow is valuable because inviscid flow offers accurate approximations for viscous fluids in external flows beyond the thin boundary layer at solid surfaces. In internal flows, inviscid flow closely approximates viscous fluid behavior in the entrance region of ducts or channels, away from wall boundary layers. This comparison simplifies complex fluid dynamics problems, making them more manageable. Understanding these relationships aids in predicting flow behavior in various engineering applications. Overall, the insights gained from this comparison enhance the analysis of fluid systems.
matt horman
Messages
1
Reaction score
0
why is it useful to compare viscous flow to inviscid
 
matt horman said:
why is it useful to compare viscous flow to inviscid
For external flows, inviscid flow provides a very close approximation to the solution for a viscous fluid outside the thin boundary layer at a solid surface. For internal flows, inviscid flow provides a very close approximation to the solution for a viscous fluid in the entrance region of the duct or channel, outside the wall boundary layer at the solid surfaces.
 

Thread 'Need to anneal 5052 aluminum'

I need to anneal 5052 aluminum for a home project. Google has given me mixed results on how to do this. Short version is that I'm doing some heavy forming on a piece of 5052-H32 and I'm running into issues with it work hardening. I've tried the Sharpie trick with a propane torch. But I'm not sure this is doing anything. I'm also seeing conflicting opinions whether to quench or air cool. So I'm looking for some expert opinions. (Oven heating is not an option due to size.) Thanks. edit: The...
View full post »

Similar threads

Graph of viscous force and velocity
  • · Replies 15 ·
Replies
15
Views
1K
How Do Viscous Interactions Differ in Vertical and Horizontal Geometries?
  • · Replies 31 ·
2
Replies
31
Views
4K
High School Pressure in a viscous liquid versus non-viscous fluids
  • · Replies 3 ·
Replies
3
Views
1K
Stream function along solid boundary
  • · Replies 1 ·
Replies
1
Views
6K
Manufacturing Help -- Need a highly viscous material
  • · Replies 7 ·
Replies
7
Views
3K
Dynamic Simulation After Feed Flow Reduction
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Help Regarding Application of Bernoulli in a Boundary Layer
  • · Replies 1 ·
Replies
1
Views
2K
High School Knudsen Flow: High School Student Q&A
  • · Replies 4 ·
Replies
4
Views
2K
Maximum mass flow in a shell & tube heat exchanger
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Fluid Viscosity & Viscous Friction Between Plates
  • · Replies 4 ·
Replies
4
Views
2K