Physics · Fluid Mechanics
Which of the following statements is true about displacement thickness (δ) in boundary layer theory?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It is the thickness of the laminar sublayer.
- 2It is always greater than the actual boundary layer thickness.
- 3It is the distance by which the boundary is shifted to account for the reduction in mass flow rate.✓
- 4It represents the distance where pressure gradient is zero.
Correct answer
It is the distance by which the boundary is shifted to account for the reduction in mass flow rate.
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