Sedimentation of a single ellipse in a thin box using the Immersed Boundary Non-Newtonian Lattice Boltzmann Method
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 577
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شناسه ملی سند علمی:
ISME26_661
تاریخ نمایه سازی: 30 دی 1397
چکیده مقاله:
In this study, the sedimentation of a single elliptical particle in a narrow box filled with non-Newtonian fluid is discussed using the Itnmersed Boundary—Lattice Boltzmann method. The freefalling of a single circular particle near wall is used as a validation test. Results are in excellent agreement with previous studies in this field. The power-law non-Newtonian model due to its ability to show shear-tltituting, Newtonian and shear-thickening properties is used as the non-Nevvtonian fluid model. In order to study the falling manner, three various cases have been considered. The simulation results have demonstrated that differences among cases are apparent. Power-law index (n) has a noticeable effect on the translational velocity and angular velocity of falling elliptic. The proposed method can be developed for different shapes of particle and also different non—Newtonian models. The results of this study are usable for understanding the interaction between non- circular particles and non-Newtonian power-law fluid flows.
کلیدواژه ها:
نویسندگان
Sajjad Karimnejad
Student of Mechanical Engineering, Shahrood University of Technology
Amin Amiri Delouei
Assistant Professor of Mechanical Engineering, University of Bojnord
Mohsen Nazari
Associate Professor of Mechanical Engineering, Shahrood University of Technology
Mohammad Mohsen Shahmardan
Associate Professor of Mechanical Engineering, Shahrood University of Technology