Pointwise is bringing its Let’s Talk Meshing series of events to South Korea in October and Germany in December. We will be showing how Pointwise makes computational fluid dynamics (CFD) analysis more efficient and trouble-free, and giving examples of Pointwise applied to real life engineering problems. There will also be plenty of time for questions on meshing and CFD. Both events are open to anyone and there is no charge, so we hope to see you there.
At this one day workshop being held at the Hotel Interciti in the Yuseong area of Daejeon we will focus on marine and aerospace applications of Pointwise. Since not all attendees may have seen or used Pointwise previously, the day will start with an overview of Pointwise and all the different meshing and preprocessing techniques it provides. Pointwise has a variety of structured and unstructured meshing approaches, and it is easy to mix and match methods so the most appropriate type of mesh can be used in each flow area. It is also able to read and write many different CAD and CAE file formats, so it can be plugged into any CAE analysis process with ease. Finally, every operation in Pointwise is scriptable so that much of the meshing process can be automated.
The effect of different mesh types on CFD solution accuracy, and resources needed, will be demonstrated by analyzing the Potsdam Propeller Test Case. It was meshed with three different mesh topologies: prism layers, hexahedra layers, and overset structured. CFD analyses were performed with each mesh and the results compared to experimental data. The meshing time and CFD solution time were also recorded for each case, and we will discuss the tradeoffs between time and accuracy during the workshop.
Pointwise is widely used in the aerospace industry because of the mesh control and high-quality it provides. In particular, its T-Rex (anisotropic tetrahedral extrusion) method for extruding regular layers of unstructured prisms or hexahedra gives a good balance between time spent meshing and mesh quality that works well for the high Reynolds number flows typical in aerospace applications. We will discuss some of the characteristics of T-Rex, give some tips for getting the highest quality grids using it, and then show some example applications including the HL-CRM model from the most recent AIAA High-Lift Prediction Workshop and the S-Duct Inlet from last year’s AIAA Propulsion Aerodynamics Workshop.
The workshop will also include a discussion on how to work with CAD geometries in Pointwise. Pointwise reads a variety of standard and native CAD formats and can even work with discrete geometry like existing meshes or STL files. Problems ranging from small gaps and overlaps between surfaces to completely missing parts are often encountered when work with CAD, and we will show some of the techniques in Pointwise for identifying CAD problems, fixing them, and determining if a geometry model is ready for meshing.
See the workshop web page for more details and registration information.
Pointwise will host a conference on CFD grid techniques on 4-5 December at the Maritim Hotel in Stuttgart, Germany. This conference is longer and broader in scope than the workshop in Korea and will provide underlying details of many advanced methods including unstructured hexahedral meshing, CAD healing techniques, structured meshing, and higher-order CFD meshing. We also have sessions on lessons learned from generating benchmark grids and participating in various workshops including the 1st AIAA Geometry and Mesh Generation Workshop, the 3rd AIAA Propulsion Aerodynamics Workshop, and the previously mentioned Potsdam Propeller Test Case. The conference will wrap up with a discussion of future developments in CFD meshing.
See the conference web page for a more detailed agenda and registration information.
If you would like to generate your meshes using Pointwise request a free evaluation today.