# Johnson-King model

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+ | It is also categorized as half-equation model, because it essentially solves for an Ordinary Differential Equation (ODE) rather than a Partial Differential Equation (PDE) (Normally for popular turbulence models transport equations are solved which are PDE's). This model solves for a transport equation for the maximum shear stress. It was not developed to be a universal model, rather to solve only for turbulent boundary layer flows with strong adverse pressure gradient. | ||

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== References == | == References == | ||

## Latest revision as of 05:48, 17 January 2012

It is also categorized as half-equation model, because it essentially solves for an Ordinary Differential Equation (ODE) rather than a Partial Differential Equation (PDE) (Normally for popular turbulence models transport equations are solved which are PDE's). This model solves for a transport equation for the maximum shear stress. It was not developed to be a universal model, rather to solve only for turbulent boundary layer flows with strong adverse pressure gradient.

## References

**Johnson, D.A. and King, L.S.**A mathematically simple turbulence closure model for attached and separated turbulent boundary layers, AIAA Journal, 23, 1684-1692, 1985.