Draft sensation distribution of air jet supply system in large space building in summer

To study the draft sensation distribution of an air jet supply system in a large space building in summer,experiments are conducted in a large laboratory.The temperature,velocity and draft sensation distributions at a nozzle height of 4 m in the occupied zone are obtained.Then,the numerical simulation under the test condition is carried out by the computational fluid dynamics（CFD）method.The calculation results of the indoor vertical temperature and the draft sensation distribution are validated by the test data.Simulations with different nozzle heights are conducted.The satisfactory air supply condition is determined by analyzing the draft sensations and the temperatures in the occupied zone under three conditions.The simulation results show that the optimal draft sensation distribution and the uniform temperature and velocity fields can be obtained at a nozzle height of 5 m.

圆柱绕流的环量控制

对用壁面射流控制圆柱绕流的问题进行了研究，并探讨了喷口位置、多喷口吹气等问题。结果表明，喷口位置对圆形翼型的气动特性影响很大；多喷口吹气既可以提高圆形翼型的最大升力系数又可以降低吹气的能量消耗。

7.63m焦炉砌筑施工技术

太原钢铁集团公司1×70孔7.63 m焦炉是目前中国炭化室高度最高、单孔炭化室容积最大的焦炉。该焦炉是国内首次从德国Uhde公司引进的先进炼焦工艺技术,代表了当今世界炼焦工艺技术发展的方向,集中了炼焦工艺、焦炉机械、焦炉自动控制等方面的先进技术,具有国际领先水平。全面、系统阐述7.63m超大容积焦炉砌筑施工技术。