Calculation of boundary-layer development using the turbulent energy equation
Calculation of boundary-layer development using the turbulent energy equation
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DOI:
10.1017/s0022112067002319
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发表时间:
1967-05
影响因子:
3.7
通讯作者:
P. Bradshaw
中科院分区:
文献类型:
--
作者:
P. Bradshaw
The turbulent energy equation is converted into a differential equation for the turbulent shear stress by defining three empirical functions relating the turbulent intensity, diffusion and dissipation to the shear stress profile. This equation, the mean momentum equation and the mean continuity equation form a hyperbolic system. Numerical integrations by the method of characteristics with preliminary choices of the three empirical functions compare favourably with the results of conventional calculation methods over a wide range of pressure gradients. Nearly all the empirical information required has been derived solely from the boundary layer in zero pressure gradient.