Results 31 to 40 of about 37,582 (305)

A Resolved CFD-DEM Approach Based on Immersed Boundary Method

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Based on the immersed boundary method, a resolved CFD-DEM algorithm is proposed to tackle fluid-solid interaction problems which widely exist. In the proposed method, the fluid filed is described by the computational fluid dynamics in the Eulerian ...
MAO Jia, XIAO Jingwen, ZHAO Lanhao, DI Yingtang
doaj   +1 more source

A Combined Immersed Boundary Method for Flows with Scalar Transport

open access: yesJournal of Chemical Engineering of Japan
A solid volume fraction type immersed boundary method and a ghost cell immersed boundary method are combined for solving flows with scalar transport such as concentration of chemical species and heat.
Yuta Yaegashi   +4 more
doaj   +1 more source

Traffic safety assessment method of the immersed tunnel based on small target visual recognition image

open access: yesFrontiers in Physics, 2023
The quality of lighting installation performance has a direct impact on the traffic safety of immersed tunnels. To effectively investigate and judge the traffic safety of immersed tunnels having different lighting installations, a traffic safety ...
Meng Yang   +6 more
doaj   +1 more source

Simulation of incompressible viscous flows around moving objects by a variant of immersed boundary-Lattice Boltzmann method

open access: yes, 2010
A variant of immersed boundary-lattice Boltzmann method (IB-LBM) is presented in this paper to simulate incompressible viscous flows around moving objects.
Zhang, Y.H., Wu, J., Shu, C.
core   +1 more source

Transient growth in the flow past a three-dimensional smooth roughness element [PDF]

open access: yes, 2013
This work provides a global optimization analysis, looking for perturbations inducing the largest energy growth at a finite time in a boundary-layer flow in the presence of smooth three-dimensional roughness elements.
DE TULLIO, Marco   +4 more
core   +1 more source

A three-dimensional immersed boundary method for non-Newtonian fluids

open access: yesTheoretical and Applied Mechanics Letters, 2018
: Fluid-structure-interaction (FSI) phenomenon is common in science and engineering. The fluid involved in an FSI problem may be non-Newtonian such as blood. A popular framework for FSI problems is Peskin's immersed boundary (IB) method. However, most of
Luoding Zhu
doaj   +1 more source

Galilean-Invariant Characteristic-Based Volume Penalization Method for Supersonic Flows with Moving Boundaries

open access: yesFluids, 2021
This work extends the characteristic-based volume penalization method, originally developed and demonstrated for compressible subsonic viscous flows in (J. Comput. Phys.
Nurlybek Kasimov   +3 more
doaj   +1 more source

Efficient Immersed Boundary Method for Strong Interaction Problem of Arbitrary Shape Object with the Self-Induced Flow

open access: yesJournal of Fluid Science and Technology, 2007
An immersed boundary method is improved and applied to 2-D flow fields involving a single stationary/moving object. The present immersed boundary method employs a body force proportional to a solid volume fraction for coupling the solid and fluid motions
Yoshihiko YUKI   +2 more
doaj   +1 more source

Simulations of the Whirling Instability by the Immersed Boundary Method [PDF]

open access: yesSIAM Journal on Scientific Computing, 2004
Summary: When an elastic filament spins in a viscous incompressible fluid it may undergo a whirling instability, as studied asymptotically by \textit{C. W. Wolgemuth, T. R. Powers}, and \textit{R. E. Goldstein} [Phys. Rev. Lett. 84, 16--23 (2000)]. We use the immersed boundary (IB) method to study the interaction between the elastic filament and the ...
Sookkyung Lim, Charles S. Peskin
openaire   +2 more sources

A smoothing technique for discrete delta functions with application to immersed boundary method in moving boundary simulations.

open access: yes, 2009
The effects of complex boundary conditions on flows are represented by a volume force in the immersed boundary methods. The problem with this representation is that the volume force exhibits non-physical oscillations in moving boundary simulations.
Li ZL(李治林)   +3 more
core   +1 more source

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