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SUMMARY:Local RBF-Based Meshfree Simulation of Mixed Convection in a Lid-D
 riven Cavity Containing a Porous Elliptic Cylinder.
DTSTART:20260728T140000Z
DTEND:20260728T160000Z
DTSTAMP:20260814T111700Z
UID:indico-event-9761@indico.fysik.su.se
DESCRIPTION:Speakers: Jiban Chowdhury (IIT Madras)\n\nA numerical investig
 ation is conducted to study unsteady two-dimensional mixed convection flow
  in a lid-driven cavity with moving top and left walls containing hot poro
 us bodies. The combined effects of lid motion\, body geometry\, and therma
 l gradients generate complex flow and heat transfer characteristics. Fluid
  flow within the porous medium is modeled using the Brinkman–Forchheimer
 –extended Darcy formulation\, while thermal transport is described using
  the local thermal nonequilibrium (LTNE) model\, which accounts for temper
 ature differences between the fluid and solid phases.\nzoom: https://stoc
 kholmuniversity.zoom.us/j/622224375\nThe coupled non-linear governing equa
 tions are discretized using a local radial basis function (RBF)–based me
 shfree scheme\, and an iterative solver\, such as the successive over–re
 laxation method or the bi–conjugate gradient stabilized method\, is empl
 oyed to solve the resulting algebraic system. This meshfree numerical solv
 er offers high flexibility in handling complex geometries and supports sca
 ttered node layouts without requiring specific connectivity among the node
 s. The local RBF approach provides stable numerical solutions across vario
 us boundary conditions without compromising accuracy. \nThe developed mes
 hfree numerical model is validated against experimental and benchmark resu
 lts available in the literature and shows excellent agreement in terms of 
 velocity\, temperature fields\, and heat transfer metrics. Overall\, this 
 work contributes to the understanding of mixed convection in complex geome
 tries and demonstrates the robustness and flexibility of meshfree numerica
 l methods in solving fluid-thermal problems involving porous and deformabl
 e internal bodies. \n\nhttps://indico.fysik.su.se/event/9761/
LOCATION:Albano 3: 6334 - Kilo (6 seats) (Albano Building 3)
URL:https://indico.fysik.su.se/event/9761/
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