Learn how mesh adaptation can improve CFD solution accuracy. Mesh adaptation can automatically add finer mesh resolution in areas where it is needed by examining an error metric or flow gradients to determine where the existing mesh is not adequately resolving the flow.
Several meshing techniques and meshing best-practices have been developed while creating workshop-supplied meshes for the 3rd and 4th AIAA Propulsion Aerodynamics Workshops. These meshing strategies and lessons learned have been collected to help CFD practitioners gather experience meshing these types of challenging internal flow problems.
One of the most frequent requests that Pointwise receives is to add native import and export capability for a grid file format. Unfortunately, there are not enough hours in the workday to fulfill all of these requests. For that reason, a plugin capability has been made available so you can easily write your own importer or exporter.
This webinar covering newly released features is your guide to the latest offerings in Pointwise. This quick overview demonstrates the new features so that you will know how to use and where to quickly find these features.
The Potsdam Propeller Test Case (PPTC) is a benchmark case used for assessing the accuracy of existing computer codes and modeling strategies in simulating hydrodynamic propeller performance. The controllable pitch propeller design was tested at several different conditions and has a wealth of experimental data for CFD validation.
Due to governing body rule changes, Garry Rogers Motorsport needed to design and build a completely new V8 Supercar without blowing their budget and schedule. By moving their CFD meshing to Pointwise, Garry Rogers Motorsport was able to significantly reduce their hours spent generating meshes while also having a great deal of confidence in the results.
Watch this on-demand webinar that will help you determine the best type of mesh to use for the fastest and most accurate CFD simulations.
This webinar introduces a feature currently in development for mesh adaptation. It accepts from the flow solver a point cloud on which target cell sizes are specified. This point cloud is used as a clustering source in Pointwise to adapt both the volume and surface meshes.
The Human Power Team is comprised of students with a shared goal: to build a highly advanced recumbent bicycle capable of breaking the world record for the fastest human alive. We will put our bike, the VeloX, to the test for the seventh time in the annual World Human Powered Speed Challenge in Battle Mountain, Nevada. This year the Human Power Team will focus purely on the world record for women, which was set at 121.81 km/h by Barbara Buatois in 2010.
In this webcast, we use a diffusing serpentine inlet to demonstrate some of the more advanced structured meshing techniques available in Pointwise. These meshing strategies highlight how Pointwise users can generate uniform, boundary-layer resolved grids with exceptional cell shape quality where the inlet’s shape transitions from something with a square cross-section upstream to a circular shape at the exit.
When surfing 80-100 foot tall waves, a surfer can reach speeds as high as 50 mph. Optimization of the surfboard’s aerodynamics can contribute to stability and safety. A CFD framework featuring Pointwise’s automated meshing allowed 100 designs to be explored.
In this webinar, we will examine the tools and the framework that allowed over 100 surfboard designs to be explored, resulting in a higher speed, lower drag big wave surfboard design.
Aerospike rocket nozzles offer increased efficiency over a wider operating pressure range than traditional nozzles. In this study, we compare CFD and experimental predictions of aerospike nozzle thrust for varying pressure ratios and base bleed rates.
Students at KTH Royal Institute of Technology in Sweden investigated the performance of a pick-and-place machine using CFD. Pointwise was used to perform a grid refinement study for a static simulation where the nozzle of the machine as well as the distance to the component varied. Additionally, an overset mesh was generated for a 1-DOF dynamic simulation.
Pointwise is supporting two AIAA workshops (the 3rd High Lift Prediction and the 1st Geometry and Mesh Generation Workshop) to be held prior to AIAA Aviation in June 2017. We generated several type of meshes (unstructured, hybrid, hybrid overset, and high order) for the NASA High Lift Common Research Model that are described here.
Pointwise’s quad-dominant surface meshing and hexahedral boundary layer volume meshing generate smaller meshes in a highly automated manner. When combined with sources for off-body clustering, a fully-resolved viscous mesh can be generated relatively quickly.
Researchers at Pennsylvania State University’s Applied Research Laboratory share an overview of their ongoing work involving overset grid CFD simulations of an incompressible rotorcraft hub they performed using the overset meshing tools available in Pointwise.
This video provides an overview of Pointwise’s suite of tools for creating a meshing-ready geometry model. Included are geometry model import, tolerance verification and setting, techniques for healing gaps between surfaces, recreating missing geometry, and more.
Chasing the Sun 3000 km across the Australian Outback is a challenge. And doing it in a solar powered vehicle is an even bigger challenge. But every two years the Stanford Solar Car Project, a student-run organization, arrives in Australia with a new design ready to take on the Bridgestone World Solar Challenge. This article summarizes the simulation driven design framework that enabled the team to analyze over 40 design iterations and improve the aerodynamic efficiency of their 2015 car, Arctan.