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Boundary Layer Thickness
Estimate laminar and turbulent boundary-layer thickness over a flat plate.
visual calculatorTurbulence & Wall Modeling
Read the flow shape before trusting the number.
This page turns a CFD setup into regime, scale, and dominant-effect cues. Adjust the calculator below and compare the moving graphic with the computed result.
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boundary layerflat platewall flow
formula
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delta_lam ~= 5 x / sqrt(Re_x), delta_turb ~= 0.37 x / Re_x^(1/5)Re_x
6.67e+5
δ laminar (mm)
6.12
δ turbulent (mm)
25.32
평판 천이 임계: Re_x ≈ 5×10⁵. 현재 난류 영역입니다.