دوره 7، شماره 14 - ( پاییز و زمستان 1390 1390 )                   جلد 7 شماره 14 صفحات 71-87 | برگشت به فهرست نسخه ها

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Kazemi E, Zanganeh M, Yeganeh-Bakhtiary A, Houshangi H. Two-Phase Flow Modeling of Bed-Load Transport Using A Lagrangian-Lagrangian Model . Journal Of Marine Engineering. 2012; 7 (14) :71-87
URL: http://marine-eng.ir/article-1-191-fa.html
کاظمی احسان، زنگانه مرتضی، یگانه بختیاری عباس، هوشنگی حمید. مدلسازی دوفازه بار بستر با استفاده از یک مدل لاگرانژ-لاگرانژی. مهندسی دریا. 1390; 7 (14) :71-87

URL: http://marine-eng.ir/article-1-191-fa.html


عضو هيأت علمی دانشکده عمران، دانشگاه علم و صنعت ایران
چکیده:   (5617 مشاهده)
Bed-load transport is effective on river bed stability and Morphology. Therefore, modeling this phenomenon is very important in the field of hydraulics engineering. Bed-load transport occurs by saltation at low to medium shear stress and by sheet-flow at high shear stress. In the present paper, the hydrodynamics of transport in thesaltationand sheet-flow regimes under unidirectional flow is studied using a Lagrangian model based on I-SPH method. The fluid and sediment phases are modeled separately as Newtonian and non-Newtonian fluids respectively. Fluid-sediment interaction is modeled using drag force to define interaction mechanism. To calibrate and validate the numerical model, the result is compared with experiments. There is a good agreement between them that illustrates the applicability of the present model in the simulation of both saltation and sheet-flow regimes hydrodynamics.
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نوع مطالعه: مقاله پژوهشي | موضوع مقاله: Offshore Hydrodynamic
دریافت: ۱۳۹۱/۳/۲۲ | پذیرش: ۱۳۹۲/۷/۲۷

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