Simulation of dynamic fluid-solid interactions with an improved direct-forcing immersed boundary method-中国期刊网

摘要 Dynamicfluid-solidinteractionsarewidelyfoundinchemicalengineering,suchasinparticle-ladenflows,whichusuallycontaincomplexmovingboundaries.Theimmersedboundarymethod(IBM)isaconvenientapproachtohandlefluid-solidinteractionswithcomplexgeometries.Inthiswork,Uhlmann’sdirect-forcingIBMisimprovedandimplementedonasupercomputerwithCPU-GPUhybridarchitecture.Thedirect-forcingIBMismodifiedasfollows:thePoisson’sequationforpressureissolvedbeforeevaluationofthebodyforce,andtheforceisonlydistributedtotheCartesiangridsinsidetheimmersedboundary.Amultidirectforcingschemeisusedtoevaluatethebodyforce.Thesemodificationsresultinadivergence-freeflowfieldinthefluiddomainandtheno-slipboundaryconditionattheimmersedboundarysimultaneously.Thismethodisimplementedinanexplicitfinite-differencefractional-stepscheme,andvalidatedby2Dsimulationsoflid-drivencavityflow,Couetteflowbetweentwoconcentriccylindersandflowoveracircularcylinder.Finally,themethodisusedtosimulatethesedimentationoftwocircularparticlesinachannel.Theresultsagreeverywellwithpreviousexperimentalandnumericaldata,andaremoreaccuratethantheconventionaldirect-forcingmethod,especiallyinthevicinityofamovingboundary.

1Yang Shi Zhaosheng Yu Xueming Shao. Combination of direct-forcing fictitious domain method and sharp interface method for dielectrophoresis of particles.力学,2010-04.
2Jie wu;Chang Shu. A coupled immersed boundary-lattice Boltzmann method and its simulation for biomimetic problems.力学,2015-01.
3. Dynamic Buckling of Elasto-Plastic Cylindrical Shells Under Axial Fluid-Solid Impact Load.海洋科学,1994-03.
4Shizhao Wang;Beiji Shi;Yuhang Li;Guowei He. A large eddy simulation of flows around an underwater vehicle model using an immersed boundary method.力学,2016-06.
5. A three dimensional implicit immersed boundary method with application.力学,2011-06.
6Min LIU Keqi WU. Aerodynamic Noise Propagation Simulation using Immersed Boundary Method and Finite Volume Optimized Prefactored Compact Scheme.物理,2008-04.
7Wen－QiangLu. Simulation of Thermocapillary Convection in a Two—Layer Immiscible Fluid System using a Boundary Element Method.物理,1992-04.
8Carolina Dominguez;Gabriel N. Gatica;salim meddahi. A POSTERIORI ERROR ANALYSIS OF A FULLY-MIXED FINITE ELEMENT METHOD FOR A TWO-DIMENSIONAL FLUID-SOLID INTERACTION PROBLEM.计算数学,2015-06.
9A. Eslamian;M. Khayat. A novel hybrid solid-like fluid-like （SLFL） method for the simulation of dry granular flows.力学,2017-02.
10Sayed M. Derakhshani;Dingena L. Schott;Gabriel Lodewijks. Modeling particle sedimentation in viscous fluids with a coupled immersed boundary method and discrete element method.力学,2017-02.

Simulation of dynamic fluid-solid interactions with an improved direct-forcing immersed boundary method

来源期刊

相关推荐

同分类资源更多

相关关键词

Simulation of dynamic fluid-solid interactions with an improved direct-forcing immersed boundary method

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多