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Fluid Mechanics
Bernoulli's Equation
GATE 2019
Easy

For a fully-developed turbulent hydrodynamic boundary layer for flow past a flat plate, the thickness of the boundary layer increases with distance x from the leading edge, along the free-stream flow direction, as

  • Ax^0.5
  • Bx^1.5
  • Cx^0.4
  • x^0.8

Explanation

The standard turbulent flat-plate boundary-layer correlation δ/x=0.37/Re_x^0.2 gives δ∝x^0.8.

Source: GATE CH 2019 (2019)

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