|
| Numerical simulation of snow drifting and research on snow unfavorable area of opening round coal bunker |
| Received:July 02, 2018 Revised:December 20, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20180702003 |
| KeyWord:spherical coal storage bunker with an opening numerical simulation wind-induced snow drift erosion and deposition amount |
| Author | Institution |
| 姜昕彤 |
辽宁工程技术大学 力学与工程学院, 阜新 |
| 殷志祥 |
辽宁工程技术大学 力学与工程学院, 阜新 |
| 崔翰博 |
辽宁工程技术大学 力学与工程学院, 阜新 |
|
| Hits: 828 |
| Download times: 650 |
| Abstract: |
| Under the joint action of wind and snow,the snow pressure on the surface of a coal bunker with an opening is irregularly distributed,which may be extremely harmful to the structure's safety.And the 《Load code for the design of building structures》 and the 《Technical specification for construction of circular coal bunker of thermal power plants》 do not clearly specifify the snow load of this kind of structures.For this reason,we simulated the variation of snow erosion and deposition amount on surface of such a bunker,which is close to the actual type.Using computational fluid dynamics software FLUENT,based on Euler-Euler's method,the effects of different wind direction angles,snow thickness and snow blowing time on the snow erosion amount and deposition amount on the surface of the spherical reticulated shell with an opening were analyzed.The results showed that the wind angle and the snow thickness have a great influence on the snow surface area of the coal bunker.With the increase of the wind direction angle and snow thickness,the amount of snow erosion in the vertical flow direction in the center of the coal bunker increases significantly.Compared the numerical simulation results with China's specifications,it is founded that this structure does not fellow the snow distribution coefficient by the China's specifications,so provide the partition map of the most unfavorable snow distribution coefficient on the surface of the coal bunker.This study provides a reference on snow load design of coal bunker surface in the future. |
|
|
|