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The direct solver, Direct Sparse, solves the set of equations directly without any approximations and hence there are no errors associated with the solution process. … Since there a no non-linearities, we see a steady growth in solution time with the increase in DoF when using an interative solver.

Feb 08, 2020 · hi peter, thank you I managed to find it. After i tried changing to direct solver. the stress was about 90Mpa then i decided to add a 0 displacement ( y and z) at the vane tip.

Hi, I've being using ANSYS mechanical 18.2 (direct and iterative solver) in windows 7 without any issue. Recently I upgraded to a better performing (more cores and with more RAM) workstation which ...

Answer (1 of 2): Basically FEA Solvers are solving for matrices KU = F where K = Stiffness matrix, F = Force matrix and U = unknown displacements matrix. We provide the material elastic properties to the solver and apply a loading and ask the solver to determine the displacements. So as we know, ...

Hi, I've being using ANSYS mechanical 18.2 (direct and iterative solver) in windows 7 without any issue. Recently I upgraded to a better performing (more …

12.07.2012 · Solver Output. When you click on the Solution Information branch in Solution, the graphics window turns to the worksheet window and you see Solver Output. This is the jobname.out file that ANSYS Mechanical APDL creates …

This Plot Is only Relevant For A Non-Linear Analysis

The ANSYS program offers a large number of iterative solvers as alternatives to the direct solvers (sparse solver). These alternatives in many cases can result ...

SPARSE MATRIX DIRECT SOLVER. Number of equations =2090946, Maximum wavefront = 275 Heap space available at start of bcs_mem0: nHeap= 61665329 D.P. words 470.47 Mbytes Estimated work space needed for solver: min_siz= 256932078 D.P. words 1960.24 Mbytes Start_siz Work space needed for solver: start_siz= 110399416 D.P. words 842.28 Mbytes

14.06.2021 · Fig. 01 Screenshot of FEM solver options available in SimScale. As shown in Fig. 01, we can see that, for structural mechanics simulations, there are several options available in the numerics section of the SimScale cloud-based platform. Of these, Multfront, MUMPS, and LDLT are direct solvers, while PETSc and GCPC are iterative solvers.

A direct solver gives the exact solution to the system of equations that define the FE model. So for a system represented by , the exact solution is where ...

Ansys Solvers Team, April, 2002. Outline • Basic solver descriptions – Direct and iterative methods ... SPARSE MATRIX DIRECT SOLVER. Number of equations =2090946, Maximum wavefront = 275 Heap space available at start of bcs_mem0: …

07.02.2020 · ANSYS Direct Solver vs Iterative Solver. chinguanwei Member Posts: 5. February 2020 in Structures. Hi guys, does anyone know where can i change the analysis setting to direct solve in ansys ? thank you. Share on Twitter Share on Facebook. Comments. peteroznewman Posts: 13,033 Member.

The classification of solvers into direct and iterative mainly depends on the method of getting {u} in the linear equation. The selection of the ...

ANSYS Inc. Canonsburg, PA, USA Abstract—As hardware accelerators and especially GPUs be-come more and more popular to accelerate the compute intensive parts of an algorithm, standard high performance computing packages are starting to benefit from this trend. We present the first GPU acceleration of the ANSYS direct sparse solver.

Jun 14, 2021 · Fig. 01 Screenshot of FEM solver options available in SimScale. As shown in Fig. 01, we can see that, for structural mechanics simulations, there are several options available in the numerics section of the SimScale cloud-based platform. Of these, Multfront, MUMPS, and LDLT are direct solvers, while PETSc and GCPC are iterative solvers.

The direct solvers will use more memory than the iterative solvers, but can be more robust. Iterative solvers approach the solution gradually, ...

Hi guys, does anyone know where can i change the analysis setting to direct solve in ansys ? thank you.

) The sparse solver is a frontal type solver that has been optimized for sparsely populated matrices like those found in finite element analysis. From: ANSYS ...

In contrast to the direct solver, the iterative solver starts by assuming an approximate solution for the unknowns {u}. The solution is iterated ...

Sparse Solver Memory Usage Example 1 (cont.) ANSYS 6.0 memory allocation. Initial memory increased to 800 Mbytes. 800 Mbytes exceeds. Optimal I/ ...