Abstract
The model for snowdrift wind tunnel test needs to be similar with the prototype. Based on detailed analysis in aspects of geometry, kinematics and dynamics, the major similarity parameters that need to be satisfied are gained. The contradiction between the Reynolds number and Froude number as well as the problem of time scale is introduced, and the selections of the model parameters are specified. Lastly, an example of snowdrift wind tunnel test by adoption of quartz sand as the model of snow grains is presented. The flow field and the snow distributions on a typical stepped roof were investigated. The results show that the flow filed characters are in good agreement with the field observations, and the stepped roof snow depth distributions are basically consistent with the observation results.
Highlights
Snowdrift forms the unbalanced distribution on roof under the wind actions, leading to excessively great snow load on local roof, eventually resulting in collapse of the building [1]
The model for snowdrift wind tunnel test needs to be similar with the prototype
The results show that the flow filed characters are in good agreement with the field observations, and the stepped roof snow depth distributions are basically consistent with the observation results
Summary
Snowdrift forms the unbalanced distribution on roof under the wind actions, leading to excessively great snow load on local roof, eventually resulting in collapse of the building [1]. Such incidents of structure damage by snow load are not rarely seen. Wind-induced snow drift research is mainly conducted through field observation, wind tunnel (or water flume) test and numerical simulation, with each having their own advantages and drawbacks. Due to its accessibility for easy control and systematic study, is regarded as an important research method. Snowdrift wind tunnel simulation needs to keep similarities between the model and prototype in geometry, kinematics, and dynamics
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
