Results 61 to 70 of about 14,331 (187)
Energy‐Efficient Microwave Sintering of Binder‐Jetted Alumina
Journal of the American Ceramic Society, Volume 109, Issue 4, April 2026.Flowchart showing the developed microwave (MW) method to rapidly (∼48x faster) and uniformly heat binder‐jet 3D‐printed Al2O3 complex geometries with ∼96% lower energy consumption over conventional sintering process. Multiphysics simulations investigated the effects of susceptor configurations for thermal‐field control.
Bashu Aman +6 more
wiley +1 more source
Multilevel acceleration of scattering-source iterations with application to electron transport
Nuclear Engineering and Technology, 2017 Acceleration/preconditioning strategies available in the SCEPTRE radiation transport code are described. A flexible transport synthetic acceleration (TSA) algorithm that uses a low-order discrete-ordinates (SN) or spherical-harmonics (PN) solve to ...
Clif Drumm, Wesley Fan
doaj +1 more source
Scalability Analysis of Parallel GMRES Implementations [PDF]
, 2001 Applications involving large sparse nonsymmetric linear systems encourage parallel implementations of robust iterative solution methods, such as GMRES(k).
Allison, D., Sosonkina, M., Watson, L.T.
core +1 more source
International Journal for Numerical Methods in Engineering, Volume 127, Issue 6, 30 March 2026.ABSTRACT The contribution deals with algebraic multigrid (AMG) based preconditioning methods for the iterative solution of a coupled linear system of equations arising in numerical simulations of failure of quasi‐brittle materials using generalized continuum approaches.
Nasser Alkmim +4 more
wiley +1 more source
Mathematical Modelling and Analysis, 1999 The implementation of a modern preconditioned Newton‐Krylov solvers to the polymer melt flow in injection molding is the main focus of this paper. The viscoelastic and non‐isothermal characteristics of the transient polymer flow is simulated numerically ...
U. Türk, A. Ecder
doaj +1 more source
Preconditioning of Active-Set Newton Methods for PDE-constrained Optimal Control Problems
, 2015 We address the problem of preconditioning a sequence of saddle point linear systems arising in the solution of PDE-constrained optimal control problems via active-set Newton methods, with control and (regularized) state constraints.
Porcelli, Margherita +2 more
core +1 more source
Breakdown-free GMRES for Singular Systems [PDF]
SIAM Journal on Matrix Analysis and Applications, 2005 The generalized minimal residual (GMRES) method is based on the Arnoldi process, which may suffer from benign or hard breakdown. First the authors investigate in which space the solution of the system (or the least squares solution in the case of an inconsistent system) \(Ax=b\) can be found.
Reichel, Lothar, Ye, Qiang
openaire +2 more sources
Accelerating Conjugate Gradient Solvers for Homogenization Problems With Unitary Neural Operators
International Journal for Numerical Methods in Engineering, Volume 127, Issue 5, 15 March 2026.ABSTRACT Rapid and reliable solvers for parametric partial differential equations (PDEs) are needed in many scientific and engineering disciplines. For example, there is a growing demand for composites and architected materials with heterogeneous microstructures.
Julius Herb, Felix Fritzen
wiley +1 more source
Preconditioning GMRES for discontinuous Galerkin approximations
Computer Assisted Methods in Engineering and Science, 2023 The paper presents an implementation and the performance of several preconditioners for the discontinuous Galerkin approximation of diffusion dominated and pure diffusion problems.
Krzysztof Banaś, Mary F. Wheeler
doaj
Frontiers in Built Environment, 2018 In this paper a parallel iterative solver based on the Generalized Minimum Residual Method (GMRES) with complex-valued coefficients is explored, with applications to the Boundary Element Method (BEM).
Jorge Molina-Moya +2 more
doaj +1 more source