# ACU-T: 1000 Basic Flow Set Up

This tutorial introduces you to the workflow for setting up a Computational Fluid Dynamics (CFD) analysis using Altair HyperWorks CFD. HyperWorks CFD is a powerful tool which provides a single, streamlined platform for performing a CFD analysis, starting from importing CAD through post-processing results. In this tutorial, you will learn how to use HyperWorks CFD for setting up a CFD analysis while exploring different capabilities available within the software for importing a geometric model, validating the geometry, setting up simulation parameters and boundary conditions, and generating a mesh. You will then launch AcuSolve simulation directly from HyperWorks CFD and post-process the results using HyperWorks CFD Post.

## Prerequisites

To run this simulation, you will need access to a licensed version of HyperWorks CFD and AcuSolve.

Prior to running through this tutorial, click here to download the tutorial models. Extract ACU-T1000_manifold.x_t from HyperWorksCFD_tutorial_inputs.zip.

## Analyze the Problem

An important step in any CFD simulation is to examine the engineering problem at hand and determine the important parameters that need to be provided to AcuSolve. Parameters can be based on geometrical elements, such as inlets, outlets, or walls, and on flow conditions, such as fluid properties, velocity, or whether the flow should be modeled as turbulent or as laminar.

## Start HyperWorks CFD and Create the HyperMesh Model Database

## Import and Validate the Geometry

### Import the Geometry

`ACU-T1000_manifold.x_t`, to your problem directory.

### Validate the Geometry

## Set Up the Problem

### Set Up the Simulation Parameters and Solver Settings

### Assign Material Properties

### Assign the Flow Boundary Conditions

The current model has one inlet, three outlets, and walls for the rest of the surfaces. When a geometry model is imported into HyperWorks CFD, all the surfaces are placed in the Default Wall (i.e. Type = auto_wall). As you start assigning the surface boundary conditions, those surfaces are moved into a new boundary condition group. All the surface boundary condition tools are placed under the Boundaries sub-section of the Flow ribbon.

## Define Mesh Controls

Now that you have assigned the material properties and boundary conditions, you will define the meshing parameters for the model and then generate the mesh.

### Define the Surface Mesh Controls

### Define the Boundary Layer Mesh Parameters

### Generate the Mesh

## Run AcuSolve

## Post-Process the Results with HyperWorks CFD Post

This part of the tutorial shows you how to work with a steady state solution using HyperWorks CFD Post.

### Load the Results

### Create Pressure Contours on Boundary Surfaces

### Plot Velocity and Pressure Contours on a Section Cut

## Summary

In this tutorial, you worked through a basic workflow to carry out a CFD simulation and post-process the results using HyperWorks CFD. You started by importing the geometry and meshing the model in HyperWorks CFD. You also set up the model and launchedAcuSolve directly from within HyperWorks CFD. Upon completion of the solution by AcuSolve, you post-processed the results in the Post ribbon. You learned how to create contours on the boundary surfaces and section cuts.