On the order of accuracy of the immersed boundary method: Higher order convergence rates for sufficiently smooth problems
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Cites background or methods from "On the order of accuracy of the imm..."
...In the approach of Peskin and McQueen [4–9], the blood is modeled as a viscous incompressible fluid, whereas the muscular heart wall is modeled as a thick viscoelastic structure with time-dependent elastic parameters, and the flexible heart valve leaflets are modeled as thin elastic boundaries....
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...Our algorithm, first introduced in [3], extends to the viscous case the hybrid approximate projection method (‘‘version 5’’) introduced by Almgren et al....
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...The present work extends the uniform grid method of [3] to provide an adaptive discretization of the Eulerian equations of motion (i....
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...The present adaptive algorithm employs the same hierarchical structured grid approach (but a different numerical scheme, see below) as that used by Roma, Peskin, and Berger to discretize the Eulerian equations of motion (i.e., the incompressible Navier–Stokes equations)....
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...where Nnþ 1 2 1⁄4 Nnþ12ðun; uMAC;n; f;Gpn 12Þ is the explicit approximation to 1⁄2ðu rÞu nþ 1 2 described in the appendix to [3] (note that in three spatial dimensions, we make use of full corner transport coupling [39]; see also [27] for a careful presentation of the particular three-dimensional treatment we employ), and...
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References
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"On the order of accuracy of the imm..." refers background in this paper
...By convention, a vector field defined on the Cartesian grid in terms of those vector components that are normal to the faces of the grid cells is called a MAC vector field [44]....
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...This smoothed delta function has a support of four meshwidths in each spatial dimension and satisfies four moment conditions, but it does not satisfy all of the axioms prescribed in [9]....
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...(Even in the more complicated case in which the mass density of the structure differs from that of the fluid, the momentum, velocity, and incompressibility of the coupled system can still be described by the incompressible Navier–Stokes equations; see [9]....
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...One can show [5,9] that the corresponding curvilinear elastic force density functional can be put in the form...
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...In [9], a collection of axioms (including moment conditions and a quadratic condition) are described that lead to the unique definition of a particular smoothed delta function with finite support....
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"On the order of accuracy of the imm..." refers methods in this paper
...(See [41] for an introduction to multigrid methods that includes a description of red–black Gauss–Seidel....
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