Fluid Mechanics: Inviscid flow v.s. Laminar flow

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SUMMARY

Inviscid flow refers to fluid motion where viscous effects are negligible, effectively disregarding viscosity. Laminar flow occurs when the Reynolds number (Re) is typically less than 2300, indicating a flow regime dominated by viscous forces rather than inertial forces. The discussion clarifies that while laminar flow has a higher viscosity influence, inviscid flow assumes no frictional forces. Understanding the relationship between Re and flow types is crucial for distinguishing between laminar and turbulent flow.

PREREQUISITES
  • Understanding of Reynolds number (Re)
  • Basic principles of fluid mechanics
  • Knowledge of viscous and inertial forces
  • Familiarity with flow regimes: laminar and turbulent
NEXT STEPS
  • Research the implications of Reynolds number in fluid dynamics
  • Study the characteristics of turbulent flow and its transition from laminar flow
  • Explore the Navier-Stokes equations for a deeper understanding of fluid behavior
  • Investigate applications of inviscid flow in engineering and aerodynamics
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Students and professionals in engineering, particularly those specializing in fluid mechanics, as well as researchers interested in the dynamics of fluid flow and its applications in various fields.

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Hey guys, I am kind of confused here but can you guys define for me inviscid flow and laminar flow?

In my understanding, inviscid flow is when viscous effect is very weak and laminar flow is when reynolds number is in general, less than 2300. In that effect, does that mean that viscosity for laminar flow is in general higher than that for inviscid flow?

thx a lot! =)
 
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Inviscid flow means flow without friction, so viscosity is completely disregarded.

Laminar flow is, like you said, dealing with the Reynolds number. A much higher Re would get you turbulent flow.

Basically the difference between laminar flow and turbulent flow, upon examining what the Re is comprised of, is the dominance of the forces.

Re is basically inertial forces/viscous forces acting upon the fluid.

Laminar flow, with a lower Re, basically has a fluid that is more dominated by viscous forces, whereas turbulent flow is more dominated by its inertial force.
 

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