Using the system designed in this thesis work , flow field calibration of the wind tunnel is accomplished , which covers dynamic pressure drop coefficient , dynamic pressure time stability , axial static pressure gradient , boundary layer , and degree of turbulence , etc . boundary layer measuring principle and method are especially described in detail , the relationship between boundary layer thickness , wind speed setting , and the depth of the experimental section is summarized , and finally the calibration data for th e model center zone under specific wind speed are given 然后利用本文设计的系统完成了落差系数、动压时间稳定姓、轴向静压梯度、边界层及湍流度等内容的流场校测。特别对边界层测量的原理及方法做了较详尽的叙述，总结出边界层厚度与设定风速、实验段深度的关系，然后给出模型中心区一定风速下校正数值。
Aplication of gtm was first begined on shitai expressway , xuanitable dda expressway and jinghu expressway . gtm mix has higher resistant on rutting , lower temperature crack and water susceptibility . and asphalt can be ecnomized 10 % - 15 % . it can produce good ecnormic benefit to us Gtm通过在河北省石太高速公路、宣大高速公路和京沪高速公路实验段的应用， gtm设计的沥青混凝土对重载车辆具有较好的高温抗车辙、泛油等使用功能，且可以减少10 - 15的沥青用量，产生较好的经济效益。
In this dissertation , the experimental study of rolling condition on two - phase flow instabilities of the forced - single - tube circulation system was carried out . furthermore , based on the d - partition method and the hypothesis of drift flow model , given some conservative equation , using the perturbation method the response of the pressure drop of the tube to the inlet flow rate perturbation was analyzed both in rolling condition and in normal upright position 本文主要通过实验对摇摆条件对单管强迫循环中汽液两相流动不稳定性的影响，同时在d分区法的前提下，在两相区基于漂移流模型，一定的守恒条件下，在摇摆和不摇摆工况中用线性小扰动法对实验段的压降对入口流速的扰动的响应进行了分析。
