کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7174495 | 1465296 | 2018 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A generalized quasi two-phase bulk mixture model for mass flow
ترجمه فارسی عنوان
یک مدل ترکیبی تقریبا دو مرحلهای برای جریان جرم به طور کلی تقسیم شده است
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کلمات کلیدی
جریان مخلوط، جریان تقریبا دو فاز، ویسکوزیته فله و برش عمودی، سرعت ترکیبات و فشار جامع عمومی. سرعت و راندگی فشار،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
We employ full dimensional two-phase mass flow equations (Pudasaini, 2012) [18] to develop a generalized quasi two-phase bulk model for a rapid flow of a debris mixture consisting of viscous fluid and solid particles down a channel. The emerging model, as a set of coupled partial differential equations, is characterized by some new mechanical and dynamical aspects of generalized bulk and shear viscosities, pressure, velocities and effective friction for the mixture where all these are evolving as functions of several dynamical variables, physical parameters, inertial and dynamical coefficients and drift factors. These coefficients and factors are uniquely constructed, contain the underlying physics of the system, and reveal strong coupling between the phases. The new model is mechanically described by an extended pressure and rate-dependent Coulomb-viscoplastic rheology of mixture. The model is expected to simulate the velocities and pressure of the bulk mixture much faster than the two-phase mass flow model. Furthermore, the introduction of the velocity and pressure drifts makes it possible to reconstruct the two-phase dynamics. This shows the application potential of the new model presented here.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Non-Linear Mechanics - Volume 99, March 2018, Pages 229-239
Journal: International Journal of Non-Linear Mechanics - Volume 99, March 2018, Pages 229-239
نویسندگان
Puskar R. Pokhrel, Khim B. Khattri, Bhadra Man Tuladhar, Shiva P. Pudasaini,