Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow Field
The flow field and the sand flow field constitutive equations are analyzed at first, then the different desert highway numerical models are established by considering the crossroad and by changing the road surface height and air stream flow field, then three kinds of different models with different...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2014/590358 |
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| author | Xamxinur Abdikerem Lei Wang Afang Jin Mamtimin Geni |
| author_facet | Xamxinur Abdikerem Lei Wang Afang Jin Mamtimin Geni |
| author_sort | Xamxinur Abdikerem |
| collection | DOAJ |
| description | The flow field and the sand flow field constitutive equations are analyzed at first, then the different desert highway numerical models are established by considering the crossroad and by changing the road surface height and air stream flow field, then three kinds of different models with different complex air flow fields are made for simulating the sand ripple formation process by weak coupling of air and sand flow field, and finally the numerical simulations of these models are conducted and the affect process of sand morphology under complex air flow fields are discussed. The results show that under the uniform airflow field, the straight parallel ripple formed and the flared ripple formed in the middle region of the crossroad, and the wavelength of the ripples on the desert highway is bigger than that of the ripples around the road when the road height is higher than that of the sand surface height. Under the nonuniform complex airflow field, the complex curved ripples are formed, and some of the local area, where the whirlwind exits, no ripples are formed. |
| format | Article |
| id | doaj-art-3f7af9ee9d694c9bb3861ae7d0aee70c |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-3f7af9ee9d694c9bb3861ae7d0aee70c2025-02-03T01:31:11ZengWileyJournal of Applied Mathematics1110-757X1687-00422014-01-01201410.1155/2014/590358590358Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow FieldXamxinur Abdikerem0Lei Wang1Afang Jin2Mamtimin Geni3School of Geography and Tourism, Xinjiang Normal University, Urumqi 830054, ChinaSchool of Mechanical Engineering, Xinjiang University, Urumqi 830047, ChinaSchool of Mechanical Engineering, Xinjiang University, Urumqi 830047, ChinaSchool of Mechanical Engineering, Xinjiang University, Urumqi 830047, ChinaThe flow field and the sand flow field constitutive equations are analyzed at first, then the different desert highway numerical models are established by considering the crossroad and by changing the road surface height and air stream flow field, then three kinds of different models with different complex air flow fields are made for simulating the sand ripple formation process by weak coupling of air and sand flow field, and finally the numerical simulations of these models are conducted and the affect process of sand morphology under complex air flow fields are discussed. The results show that under the uniform airflow field, the straight parallel ripple formed and the flared ripple formed in the middle region of the crossroad, and the wavelength of the ripples on the desert highway is bigger than that of the ripples around the road when the road height is higher than that of the sand surface height. Under the nonuniform complex airflow field, the complex curved ripples are formed, and some of the local area, where the whirlwind exits, no ripples are formed.http://dx.doi.org/10.1155/2014/590358 |
| spellingShingle | Xamxinur Abdikerem Lei Wang Afang Jin Mamtimin Geni Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow Field Journal of Applied Mathematics |
| title | Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow Field |
| title_full | Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow Field |
| title_fullStr | Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow Field |
| title_full_unstemmed | Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow Field |
| title_short | Numerical Modeling and Simulation of Wind Blown Sand Morphology under Complex Wind-Flow Field |
| title_sort | numerical modeling and simulation of wind blown sand morphology under complex wind flow field |
| url | http://dx.doi.org/10.1155/2014/590358 |
| work_keys_str_mv | AT xamxinurabdikerem numericalmodelingandsimulationofwindblownsandmorphologyundercomplexwindflowfield AT leiwang numericalmodelingandsimulationofwindblownsandmorphologyundercomplexwindflowfield AT afangjin numericalmodelingandsimulationofwindblownsandmorphologyundercomplexwindflowfield AT mamtimingeni numericalmodelingandsimulationofwindblownsandmorphologyundercomplexwindflowfield |