Mesh Generation for CFD

Meshing Solutions for All Industries

CFD isn’t just for planes, trains, and automobiles anymore. Industrial equipment, musical instruments, sporting goods – anything around or through which a fluid flows can be optimized through simulation. And accurate simulations require a mesh generator like Pointwise with the flexibility to handle the non-traditional.

Meshing for Control, Quality, and Automation

You can generate structured multi-block, unstructured, hybrid, and overset meshes for viscous simulations with precise control over point placement and clustering to get the resolution you need. At the same time, Pointwise’s core meshing methods produce cells of high quality to ensure convergence and accuracy in your CFD solution.

Using Pointwise’s Glyph scripting language, you can automate most or all of the mesh generation process by writing macros and templates. And the software’s plug-in SDK gives you the ability to write a mesh exporter customized to your CFD solver. Between Glyph and plug-ins, you can customize the entire meshing process from geometry model import to flow solver export.

Big Wave Surfboard Optimization Using Pointwise & CRUNCH CFD

Big Wave Surfboard Optimization Using Pointwise & CRUNCH CFD

In this webinar, we will examine the tools and the framework that allowed over 100 designs to be explored, resulting in a higher speed, lower drag big wave surfboard design.

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Numerical Investigation of a Pick-and-Place Machine

Numerical Investigation of a Pick-and-Place Machine

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.

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Automating Geometry and Mesh Generation for Heat Exchangers

Automating Geometry and Mesh Generation for Heat Exchangers

Maura Gallarotti, a master's student at KTH Royal Institute of Technology in Sweden, used Pointwise Glyph scripting to quickly generate families of candidate heat exchanger designs and to perform parametric studies by changing the dimensions of several geometrical parameters to assess the effect of these parameters on cooling efficiency. With no experience using Pointwise and having never heard about Tcl/Tk or Glyph she was able to write a script to completely automate the grid generation process in less than a week.

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North America’s Largest 3-D Printed Structure Started as a Mesh

North America’s Largest 3-D Printed Structure Started as a Mesh

While the folks at Pointwise appreciate the beauty and utility of grids, usually the computational meshes produced by our software are used as an intermediate step in a customer’s engineering analysis process and not as the final goal of the project. However, Branch Technology, with its novel freeform 3-D printing techniques actually turns these meshes into physical structures that can be used as building elements or as seen here, works of art.

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Meshing the 24th IMR Fender® Jazzmaster Guitar and the Abdominal Atlas

Meshing the 24th IMR Fender® Jazzmaster Guitar and the Abdominal Atlas

Last month several Pointwise engineers attended the 24th International Meshing Roundtable (IMR) held in Austin, Texas. We brought two grids generated for two benchmark geometries provided by the IMR steering committee. The grids were made by Carolyn Woeber, Travis Carrigan, and myself. We were pleased to hear that the grids were recognized both for their technical merit and striking visuals - they had won the Meshing Contest award.

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Direct Numerical Simulation of Woodwind Aeroacoustics

Direct Numerical Simulation of Woodwind Aeroacoustics

Researchers at Toyohashi University of Technology in Japan have used detailed DNS calculations of the flow through a recorder to better understand its sound generation mechanisms and give guidance for future instrument designs.

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Meshing's Path Forward

Meshing's Path Forward

Pointwise president John Chawner recently participated in a panel discussion on the future of mesh generation at the AIAA Science and Technology Forum 2015. Here is his summary of the topics covered and a glimpse of the meshing challenges we face.

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Mesh Topology Influence on Volute Aerodynamic Performance Computed Using Code Leo

Mesh Topology Influence on Volute Aerodynamic Performance Computed Using Code Leo

Three meshes (multi-block structured and unstructured with hexahedral and prismatic boundary layers) were generated for a generic volute and simulations were performed in the Code Leo CFD solver. Meshing time, solution time, and solution accuracy are compared.

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Structured Grid for an Aneurysm

Structured Grid for an Aneurysm

Beginning with a faceted geometry model of an arterial aneurysm, this webinar demonstrates how to generate a multi-block structured grid with O-H topology quickly and with high quality.

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Estimating the Power Requirement of a Rushton Turbine Using Pointwise and OpenFOAM®

Estimating the Power Requirement of a Rushton Turbine Using Pointwise and OpenFOAM®

Using a generic, baffled tank stirred by a Rushton turbine you will see how to use Pointwise to generate high-quality unstructured meshes suitable for steady-state moving reference frame calculations in OpenFOAM.

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CFD Investigation of LBE Rod Bundle Flow

CFD Investigation of LBE Rod Bundle Flow

LBE is a eutectic mixture consisting of 45 percent lead and 55 percent bismuth. It is foreseen as a possible coolant for Generation IV nuclear reactor systems. The most interesting properties of LBE in comparison with lead and water are presented in Table 1.

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CFD Analysis of Cavitation and Acoustics of a High Energy Water Injection Pump

CFD Analysis of Cavitation and Acoustics of a High Energy Water Injection Pump

Pointwise can easily manage and organize complex assemblies so you can focus on meshing a single component at a time. This allows engineers to rapidly generate high quality hybrid grids while maintaining the connectivity between adjacent components.

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Gas Turbine Combustor Mixing at Cranfield

Gas Turbine Combustor Mixing at Cranfield

Natural gas accounts for more than 23 percent of the world's energy production. Although it is not used in airplane engines because of its large storage volume, it has become widespread in industrial gas turbines and is the fuel of choice for many to plug the “energy gap” within the United Kingdom.

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Multi-Module Centrifugal Pump Grid Using Pointwise's Unstructured Mesh Features

Multi-Module Centrifugal Pump Grid Using Pointwise's Unstructured Mesh Features

Combustion Research and Flow Technology (CRAFT Tech) has been using CRUNCH CFD® and Pointwise to design and evaluate pump systems for our customers. Pointwise has proven to be a robust and powerful tool for generating high-quality unstructured meshes.

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Mesh Manipulation for Moving Surfaces

Mesh Manipulation for Moving Surfaces

Many aerospace-related applications exist that require surfaces to move within a given region. This can include bodies moving relative to each other, as happens during a store separation, or surfaces actually changing shape, which is what happens with ablation and aeroelasticity.

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Syracuse University Gets CFD Work Spinning

Syracuse University Gets CFD Work Spinning

At Syracuse University, a mixed group of both graduate and undergraduate students had the opportunity to participate in a project involving an innovative new wing design. Overseen by Prof. Thong Dang, the team sought to analyze this new design to determine its practicality and effectiveness.

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CATS Probes Properties of Fluid-Particle Interaction with Pointwise

CATS Probes Properties of Fluid-Particle Interaction with Pointwise

At the Chair for Computational Analysis for Technical Systems (CATS) at the RWTH Aachen University, a part of the group is working within the Priority Program 1273 “Colloidal Process Engineering” of the German Research Foundation (DFG).

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Drag Effects of Heating and Cooling Cylinders in Crossflow

Drag Effects of Heating and Cooling Cylinders in Crossflow

The reduction of the drag force on all types and shapes of objects has historically been, and remains, a major focus of aerodynamicists and fluid mechanics researchers everywhere. Aircraft, automobiles, rockets, boats, and a multitude of other devices and components suffer from the ill effects of viscous and form drag.

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From CAD to CFD in Five Minutes

From CAD to CFD in Five Minutes

Customers have written many articles about how they apply Pointwise for their real applications. We have written many articles describing benefits about the features in Pointwise. However, these articles rarely describe the full meshing process in any detail.

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High-fidelity, High-productivity CFD Simulations of Airflow over a Golf Club Head

High-fidelity, High-productivity CFD Simulations of Airflow over a Golf Club Head

The simulation of airflow over a golf club head will be used to demonstrate the complete CFD process from geometry creation through solution post-processing. Two different types of hybrid meshes are created; one is made exclusively in Pointwise, highlighting its anisotropic tetrahedral extrusion (T-Rex) meshing technology, and the other combines Pointwise with mesh generation tools developed at UTC SimCenter.

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Multiblock Structured Meshing for a High Stagger Angle Rotor: Part 2

Multiblock Structured Meshing for a High Stagger Angle Rotor: Part 2

This two-part video is aimed at providing guidance in creating a CFD ready viscous multiblock structured mesh for a single passage of a high stagger angle axial rotor geometry.

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Multiblock Structured Meshing for a High Stagger Angle Rotor: Part 2

Multiblock Structured Meshing for a High Stagger Angle Rotor: Part 1

This two-part video is aimed at providing guidance in creating a CFD ready viscous multiblock structured mesh for a single passage of a high stagger angle axial rotor geometry.

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Quick High-Quality Structured Meshing for Axial Pumps

Quick High-Quality Structured Meshing for Axial Pumps

Pointwise reduces the time needed for high-fidelity CFD simulation of turbomachinery. In this webinar, we demonstrate the techniques used to create a multiple-block, structured mesh for the DARPA HIREP Axial Pump.

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