The experimental data on the effect of weak and moderate non-equilibrium adverse pressure gradients (APG) on the parameters of dynamic and thermal boundary layers are presented. The Reynolds number based on the momentum thickness at the beginning of the APG region was Re^** = 5500. The APG region was a slot channel with upper wall expansion angles from 0 to 14°. The profiles of the mean and fluctuation velocity components were measured using a single-component hot-wire anemometer. The friction coefficients were determined using two methods, namely, the indirect Clauser method and the direct method of weighting the lower wall region on a single-component strain-gage balance. The heat transfer coefficients were determined by a transient method using an IR camera. It is noticed that in the pressure gradient range realized the universal logarithmic region in the boundary layer profile is conserved. The values of the relative (divided by the parameters in zero gradient flow at the same value of Re^**) friction and heat transfer coefficients, together with the Reynolds analogy factor, are determined as functions of the longitudinal pressure gradient. The values of the relative friction coefficient reduced to c_f/c_f0 = 0.7 and those of the heat transfer to St/St₀ = 0.9. A maximum value of the Reynolds analogy factor (St/St₀)/(c_f/c_f0) = 1.16 was reached for the pressure gradient parameter β = 2.9.

给出了关于弱和中等非平衡逆压梯度（APG）对动态边界层和热边界层参数影响的实验数据。基于APG区域开始时的动量厚度的雷诺数为Re ^** =5500。APG区域是一个缝隙通道，其上壁膨胀角为0到14°。使用单分量热线风速仪测量平均和波动速度分量的分布。摩擦系数是通过两种方法确定的，即间接克劳斯法和在单组分应变计天平上加权下壁区域的直接方法。传热系数是通过使用红外热像仪的瞬态方法确定的。注意到在所实现的压力梯度范围内，边界层轮廓中的通用对数区域是保守的。相对值（除以零梯度流中的参数，在相同的Re ^**值下））摩擦系数和传热系数以及雷诺类比因子是纵向压力梯度的函数。相对摩擦系数的值减小到c _f / c _{f 0}  = 0.7，而热传递的值减小到St / St ₀  = 0.9。对于压力梯度参数β  = 2.9 ，达到了雷诺类比因子（St / St ₀）/（c _f / c _{f 0}）= 1.16的最大值。