Computer · Fluid Mechanics

Which of the following statements is true about displacement thickness (δ)?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1It represents the distance where the pressure gradient is zero.
2It is the thickness that accounts for the reduction in mass flow rate due to boundary layer formation.✓
3It is always greater than the actual boundary layer thickness.
4It is the thickness of the laminar sublayer.

Correct answer

It is the thickness that accounts for the reduction in mass flow rate due to boundary layer formation.

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