Etude de la convection mixte laminaire dans une cavité ventilée par la méthode de Boltzmann sur réseau

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Magister work exposed focuses on the numerical study of laminar mixedconvection in a ventilated cavity.The geometry studied is a square cavity equipped with two openings: one islocated in the lower left corner for the supply and the other located in the upper rightcorner, for evacuation. The bottom wall is subjected to a constant and uniformtemperature, while the other walls are considered adiabatic.In this work, a detailed study on heat transfer by convection including mixedconvection was presented. A literature review of the most important works found inthe literature for the studied physical configuration has been exposed.The work continued with a presentation of the historical development of the newmethod of modeling and simulation used in this study, including the thermal latticeBoltzmann method with double population, as fundamental theoretical basis for itsapplication.A computer code was developed and tested in this work with the MATLAB editor,using the thermal lattice Boltzmann method with the D2Q9 model for the dynamicfield and D2Q5 for the thermal field.The calculation results were obtained for laminar flow and a Newtonianincompressible fluid with a Prandtl number Pr = 0,71.A typical configuration of a differentially heated square cavity was selected andused to validate the results obtained by the computer code.A first comparison of the results obtained by the LBM with those obtained by thefluent code (using the finite volume) and those in the literature is presented to theRichardson number Ri = 10. This allowed us to find a good agreement between thetwo methods.The rest of the analysis results of the CFD were presented by plotting thestreamlines, the isotherms, velocity profiles and temperature in the middle of thecavity. This analysis is complemented by the quantification of heat transfer bystudying the variation of the Nusselt number as a function of the variation of theRichardson number, the Reynolds number and Grashof number. This allowed us toassess the performance and capacity of the LBM to reproduce the phenomenon ofmixed convection in a ventilated cavity.

روابط وملفات

التعريف والنوع

رقم الوثيقة

fad8a1fb-57b2-4ebe-9f8b-87c6e8022655

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

215124_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Samir Houat","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Zine Elabidine Bouayed","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

French

المصدر والدورية

اسم المصدر

Etude de la convection mixte laminaire dans une cavité ventilée par la méthode de Boltzmann sur réseau

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

Samir Houat

الإعداد

Zine Elabidine Bouayed

الاقتباسات الببليوغرافية