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## What method does ANSYS use?

**ANSYS Fluent CFD**. Fluent is one of the two computational fluid dynamics (CFD) packages included with the ANSYS computational mechanical software suite. Fluent is a Green-Gauss Finite Volume Method with a Cell-Centered formulation (and we’ll cover what that means in a few minutes).

## What is direct solver?

The direct solvers used by COMSOL are **the MUMPS, PARDISO, and SPOOLES solvers**. All of the solvers are based on LU decomposition. These solvers will all arrive at the same answer for all well-conditioned finite element problems, which is their biggest advantage, and can even solve some quite ill-conditioned problems.

## Which is better Ansys or SolidWorks?

Solidworks is mainly 3D CAD software, and the analysis function is an auxiliary tool, which helps to obtain simple analysis results quickly in the design process . **Ansys** is a professional analysis software. … For FEA analysis, Ansys is much better than SolidWorks. For modelling purpose SolidWorks is right.

## What is solver processes in ANSYS FLUENT?

The ANSYS FLUENT serial solver **manages file input and output, data storage, and flow field calculations** using a single solver process on a single computer (Figure 32.1. 1).

## What is direct solver in Ansys?

Direct Solver:

In the case of direct solver, **you find the inverse of matrix [K] and then multiply with {f}**. As this method involves inverting the matrix, it is mostly preferred for computationally less expensive problems.

## What is direct sparse solver?

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.

## What is Ansys solver?

The QMR solver is an **iterative solver for use with high-frequency electromagnetic analyses**. It should not be used for any other application. … Most beginning ANSYS users should use either the sparse solver or the PCG solver.

## How does FEA software work?

FEA works **by breaking down a real object into a large number (thousands to hundreds of thousands) of finite elements, such as little cubes**. Mathematical equations help predict the behavior of each element. A computer then adds up all the individual behaviors to predict the behavior of the actual object.

## What is difference between direct and iterative method?

Direct methods compute the solution to a problem in a finite number of steps. … In contrast to direct methods,**iterative methodsare not expected to terminate in a number of steps**. Starting from an initial guess, iterative methods form successive approximations thatconvergeto the exact solution only in the limit.

## What is mumps in Comsol?

The allocation factor is used to tell the direct linear solver MUMPS how **much memory** to allocate for the matrix factors. MUMPS first calculates an estimated amount of memory needed, and this value is multiplied with the allocation factor to determine how much memory is actually allocated.