AcuSolve Validation Manual

Collection of AcuSolve simulation cases for which results are compared against analytical or experimental results to demonstrate the accuracy of AcuSolve results.

The accuracy of the solutions presented in this document validates the capability of AcuSolve to simulate complex flow and heat transfer for a variety of problems. The goal is to provide accurate results for each validation case. Grid sensitivity studies have been performed, however, the simulation settings have not been optimized to minimize computation time. Instead, the cases presented are intended to portray settings that show a good trade off between accuracy and compute time.

Supporting database files (*.hm and *.slb for HyperWorks CFD/HyperMesh and SimLab, respectively) are available for the validation cases in a compressed .zip archive,, available here.

Copy to a working directory, then expand it for access to individual database files. These can be used to recreate the results for a particular validation case or can be examined to see the AcuSolve settings in detail.

Each validation contains information in the following sections:
Problem Description
A description of the geometry, physical properties, and specific AcuSolve modeling strategy.
AcuSolve Results
Results obtained from the AcuSolve simulation compared against theoretical or experimental results.
A summary of the validation case.
Simulation Settings
AcuSolve settings for the specific validation case and the name and location of the associated database file.
Sources of theoretical equations or experimental results.

AcuSolve Results Presentation

Results for each validation case are presented with one or more contour plots that represent the CFD solution. For each case a comparison with the representative reference is provided and the associated error is reported.

Recreating the Results

You can recreate the AcuSolve results by using the database files provided. The general process to recreate the results is as follows:
  1. Start HyperWorks CFD or SimLab and open the database file (*.hm or *.slb) for a particular validation case.
  2. Launch AcuSolve to generate a solution.
  3. Post-process results with HyperWorks CFD, SimLab or AcuTrans.

Typographical Conventions

Simulation settings are presented so that you can recreate the simulation case. The presentation of the simulation settings reflects the AcuSolve commands that are modified from default values. Labels in the GUI are indicated with highlighting, for example, Problem Description. Tree items that can be renamed are presented in normal font. Settings selected from a list are indicated after a dash. Settings that are entered directly into a field are indicated by courier font.

As an example, the following would indicate that the Global settings tree item was expanded, the Problem Description panel was opened, the Analysis type was set to Steady State, and the Turbulence equation set to Laminar.
Problem Description
Analysis type
Steady State
Turbulence equation
The following would indicate that Global in the tree was expanded, Material Model was also expanded, Gas is a branch that can be renamed and the material properties panel is opened, and the Density is entered as 1.808 with the units of kg/m3.
Material Model
Material Type - Fluid
Density 1.808 kg/m3