According to the boundary layer theory, the flow of fluid in the neighbourhood of the solid boundary may be divided into _______.
two
Understanding Fluid Flow Near a Solid Boundary
According to the fundamental principles of boundary layer theory, the flow of a fluid in the vicinity of a solid surface is conceptually divided into distinct regions based on the influence of viscosity.
This theory simplifies the analysis of fluid flow by splitting the flow field into:
- The boundary layer, which is a thin region adjacent to the solid boundary where viscous forces are dominant and significant velocity gradients exist.
- The outer flow region, which is the region outside the boundary layer where viscous forces are negligible and the flow can be approximated as inviscid (potential flow).
Therefore, the flow of fluid in the neighbourhood of the solid boundary is considered to be divided into two primary regions according to boundary layer theory.
Important Questions from Boundary Layer Theory
Friction drag is generally larger than the pressure drag in _______.
When a fluid flows along a solid boundary, more and more fluid gets retarded in the vicinity of the boundary. This deceleration is accompanied by:
A plate of 500 mm × 200 mm has been placed longitudinally in a stream of an oil which flows with a velocity of 1.0 m/s. The kinematic viscosity of the oil was 0.5 stoke. The thickness of the boundary layer at the trailing edge is _______.
As defined by Prandtl, in convective heat transfer, a thin layer next to the wall where shear stress is confined is called _____.
Thickness of laminar boundary layer on flat plate:
