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Lattice Boltzmann simulation inside a cavity: The effect of pipe profile on natural convection | ||
Journal of Computational & Applied Research in Mechanical Engineering (JCARME) | ||
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 09 اردیبهشت 1402 اصل مقاله (632.25 K) | ||
نوع مقاله: Research Paper | ||
شناسه دیجیتال (DOI): 10.22061/jcarme.2023.9454.2270 | ||
نویسندگان | ||
seyed mostafa moafi madani؛ Javad Alinejad* ؛ yasser rostamiyan؛ keivan fallah | ||
Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran | ||
تاریخ دریافت: 12 آذر 1401، تاریخ بازنگری: 04 اردیبهشت 1402، تاریخ پذیرش: 09 اردیبهشت 1402 | ||
چکیده | ||
In the present study, the effect of the heating pipe profile on natural convection in a two –phase fluid inside a cavity have been investigated. This geometries has been simulated with the Lattice Boltzmann Method based on D2Q9 model for analyzing stream lines, dimensionless velocity field of fluid flow, solid particles volume fraction, temperature arrangement and Nusselt number. These parameters have been investigated in 3 cases of the cavity. The results signified by changing the geometry from a horizontal ellipse to a circular one and a vertical ellipse, the Maximum volume fraction of solid particles decreased. Also, by changing the geometry from a horizontal ellipse to a circular and vertical ellipse, larger velocity vectors have been formed around the geometry. The Nusselt number variations of circular and vertical ellipse geometries in the lower half have a similar behavior. The Nusselt number variation of horizontal ellipse geometry in the lower half is insignificant. Also, the Nusselt number of the circular geometry in the upper half is larger and uniform compared to the other two geometries. The highest average Nusselt number belongs to circular, vertical and horizontal ellipse geometries respectively. | ||
کلیدواژهها | ||
Lattice Boltzmann model؛ Fuel heating؛ Particle Volume Fraction؛ two–phase fluid؛ natural convection | ||
اصل مقاله | ||
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آمار تعداد مشاهده مقاله: 21 تعداد دریافت فایل اصل مقاله: 34 |