An immersed boundary method for solving compressible flow with arbitrarily irregular and moving geometry
Sign Up to like & getrecommendations! Published in 2018 at "International Journal for Numerical Methods in Fluids"
DOI: 10.1002/fld.4665
Abstract: In this paper, a novel immersed boundary method is developed, validated, and applied. Through devising a second-order three-step flow reconstruction scheme, the proposed method is able to enforce the Dirichlet, Neumann, Robin, and Cauchy boundary… read more here.
Keywords: boundary method; flow arbitrarily; arbitrarily irregular; method ... See more keywords
An inverse problem formulation of the immersed‐boundary method
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DOI: 10.1002/fld.4816
Abstract: We formulate the immersed‐boundary method (IBM) as an inverse problem. A control variable is introduced on the boundary of a larger domain that encompasses the target domain. The optimal control is the one that minimizes… read more here.
Keywords: boundary method; problem; inverse problem; immersed boundary ... See more keywords
An immersed boundary method for flows with dense particle suspensions
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DOI: 10.1007/s00707-018-2296-y
Abstract: AbstractThe immersed boundary method (IBM) is a well-suited tool for the direct numerical simulation of flows with dense particle suspensions, which feature strong and complex flow-particle and particle–particle interactions. With the aim to model such… read more here.
Keywords: boundary method; flows dense; particle; particle suspensions ... See more keywords
The double absorbing boundary method for the Helmholtz equation
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DOI: 10.1016/j.apnum.2021.05.029
Abstract: Abstract The Double Absorbing Boundary (DAB) is a recently proposed absorbing layer used to truncate an unbounded domain with high-order accuracy. While it was originally designed for time-dependent acoustics and elastodynamics, here the DAB construction… read more here.
Keywords: double absorbing; method helmholtz; helmholtz equation; boundary method ... See more keywords
Analysis of the shifted boundary method for the Stokes problem
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DOI: 10.1016/j.cma.2019.112609
Abstract: Abstract The analysis of stability and accuracy of the shifted boundary method is developed for the Stokes flow equations. The key feature of the shifted boundary method, an embedded finite element method, is the shifting… read more here.
Keywords: analysis shifted; boundary method; shifted boundary; method stokes ... See more keywords
Regularized singular boundary method for 3D potential flow
Sign Up to like & getrecommendations! Published in 2018 at "Engineering Analysis With Boundary Elements"
DOI: 10.1016/j.enganabound.2018.06.022
Abstract: Abstract The boundary integral methods form one group of methods for solving differential equations. The boundary element method (BEM) is the basic method of this group. However, it requires the creation of a network of… read more here.
Keywords: boundary method; singular boundary; method; method potential ... See more keywords
A regularized approach evaluating origin intensity factor of singular boundary method for Helmholtz equation with high wavenumbers
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DOI: 10.1016/j.enganabound.2019.01.008
Abstract: Abstract Evaluation of the origin intensity factor of the singular boundary method for Helmholtz equation with high wavenumbers has been a difficult task for a long time. In this study, a regularized approach is provided… read more here.
Keywords: regularized approach; method; helmholtz equation; boundary method ... See more keywords
Simulation of two-dimensional steady-state heat conduction problems by a fast singular boundary method
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DOI: 10.1016/j.enganabound.2019.06.020
Abstract: Abstract The study presents a fast direct algorithm for solutions of systems arising from singular boundary method (SBM) in two-dimensional (2D) steady-state heat conduction problems. As a strong-form boundary discretization collocation technique, the SBM is… read more here.
Keywords: heat conduction; boundary method; conduction problems; singular boundary ... See more keywords
A meshless singular boundary method for elastic wave propagation in 2D partially saturated poroelastic media
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DOI: 10.1016/j.enganabound.2019.12.019
Abstract: Abstract This paper presents a boundary meshless method, singular boundary method (SBM), in conjunction with the exponential window method (EWM) to simulate the dynamic response of the 2D partially saturated poroelastic media. The problem is… read more here.
Keywords: saturated poroelastic; poroelastic media; boundary method; singular boundary ... See more keywords
Semi-implicit direct forcing immersed boundary method for incompressible viscous thermal flow problems: A Schur complement approach
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.06.099
Abstract: An extended immersed boundary method utilizing a semi-implicit direct forcing approach for the simulation of confined incompressible viscous thermal flow problems is presented. The method utilizes a Schur complement approach to enforce the kinematic constraints… read more here.
Keywords: boundary method; method; approach; semi implicit ... See more keywords
Valuing Switching options with the moving-boundary method
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DOI: 10.1016/j.jedc.2021.104124
Abstract: Abstract Switching options can be deployed in various complex switching problems such as tolling agreements and the offshoring-backshoring problem. Closed form solutions to valuing switching options are not only hard, but also computationally intensive when… read more here.
Keywords: switching options; problem; moving boundary; valuing switching ... See more keywords