对稳定线性热分层环境下湍浮力羽流无量纲积分方程首次采用数值解法进行求解，得出浮力通量、动量通量等参量在轴线上的变化规律以及羽流中性浮力点的高度和羽流最大上升高度。2种不同尺度空间及不同烟气羽流出口条件的实验表明，实际火灾烟气羽流最大上升高度与理论计算结果及文献经验公式相符，从而表明积分模型数值解的有效性，并为高大空间火灾烟气输运规律研究及探测技术发展提供了理论及实验依据。

Through numerical solution of the dimensionless integral equations of the turbulent buoyant plume in stably linearly thermally stratified environments, the transportation laws of the buoyant flux, momentum flux and other parameters in the axial direction as well as the neutral buoyant force height and the maximum plume height are obtained. Measurements on the different fire smoke plumes in the medium-scale and big-scale experimental rooms indicate that the actual values of the maximum plume heights are consistent with both the numerical calculation results and the empirical formula in the available literatures, thus this work validates the integral model and provides a good foundation for the smoke transport research and fire detection technology development in big space buildings.