Weak Imposition of Essential Boundary Conditions in Isogeometric Analysis of Depth Averaged Advection Dispersion Equation
نویسندگان
چکیده
منابع مشابه
IMPOSITION OF ESSENTIAL BOUNDARY CONDITIONS IN ISOGEOMETRIC ANALYSIS USING THE LAGRANGE MULTIPLIER METHOD
NURBS-based isogeometric analysis (IGA) has currently been applied as a new numerical method in a considerable range of engineering problems. Due to non-interpolatory characteristic of NURBS basis functions, the properties of Kronecker Delta are not satisfied in IGA, and as a consequence, the imposition of essential boundary condition needs special treatment. The main contribution of this study...
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The present work solves two-dimensional Advection-Dispersion Equation (ADE) in a semi-infinite domain. A variable source concentration is regarded as the monotonic decreasing function at the source boundary (x=0). Depth-dependent variables are considered to incorporate real life situations in this modeling study, with zero flux condition assumed to occur at the exit boundary of the domain, i.e....
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In this work we propose a method to prescribe essential boundary conditions in the finite element approximation of elliptic problems when the boundary of the computational domain does not match with the element boundaries. The problems considered are the Poisson problem, the Stokes problem and the Darcy problem, the latter both in the primal and in the dual formulation. The formulation proposed...
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ژورنال
عنوان ژورنال: Journal of Applied Sciences
سال: 2015
ISSN: 1812-5654
DOI: 10.3923/jas.2015.184.194