Applications of Structured Meshing

Structured grid generation methods have been central to Pointwise since we began work on them in 1984. They are well-suited for applications that require 100% hexahedral, flow-aligned cells such as external aerodynamics, turbomachinery and more.

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.

Multi-block Structured Meshing of a Diffusing S-Duct

Multi-block Structured Meshing of a Diffusing S-Duct

In this webcast, we use a diffusing serpentine inlet to demonstrate some of the more advanced structured meshing techniques available in Pointwise to quickly create a multi-block structured mesh.

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Pointwise Aids Bid to Make World’s Fastest Bike

Pointwise Aids Bid to Make World’s Fastest Bike

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. 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.

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Report from the 1st AIAA Geometry and Mesh Generation Workshop

Report from the 1st AIAA Geometry and Mesh Generation Workshop

The 1st AIAA Geometry and Mesh Generation Workshop was held in Denver, Colorado on 3−4 June 2017 prior to the AIAA Aviation Forum. The goals of this new workshop were threefold: to assess the current state-of-the-art in geometry preprocessing and mesh generation as applied to aircraft and spacecraft systems, to identify areas of needed improvement, and to develop a foundation for development of best practices.

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Mesh Generation for the NASA HL-CRM

Mesh Generation for the NASA HL-CRM

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.

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Rotorcraft Hub Wake Analysis Using Overset Meshes

Rotorcraft Hub Wake Analysis Using Overset Meshes

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. Preliminary CFD results show good agreement with empirical rotor hub wake measurements.

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Meshing Overview & S-Duct Results from the 3rd Propulsion Aerodynamics Workshop

Meshing Overview & S-Duct Results from the 3rd Propulsion Aerodynamics Workshop

Pointwise provided a set of standard grids for workshop participants to use at this year's 3rd Propulsion Aerodynamics Workshop in Salt Lake City, Utah. These grids were created using several new features available in Pointwise's upcoming V18 release. An overview of some of these features and the workshop grids is provided.

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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.

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Strategies for Multiblock Structured Meshing of Turbine Blades

Strategies for Multiblock Structured Meshing of Turbine Blades

Learn the skills and techniques to efficiently create multi-block structured grids for turbine blades from start to finish. This video includes discussions about which topologies work best and how to create them as well as how to avoid common problems.

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High Fidelity Overset Structured Mesh Generation for Marine Hydrokinetic Devices

High Fidelity Overset Structured Mesh Generation for Marine Hydrokinetic Devices

Researchers at The Pennsylvania State University used the overset grid assembly tools in Pointwise to generate high-quality structured overset meshes for analysis of a horizontal axis water turbine. The flexibility offered by overset grids made it easy for them to add higher resolution grid blocks to resolve regions with high flow gradients like the turbine blade tips, wakes and tip vortices.

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Supersonic Jet in Crossflow Analysis with Pointwise and CFD++

Supersonic Jet in Crossflow Analysis with Pointwise and CFD++

Pointwise and CFD++ were used to analyze a jet in supersonic crossflow. Together they were able to provide appropriate modeling for accurate results on this relatively simple geometry with complex flow physics with shock waves and viscous effects.

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Students Use Pointwise with Overset Grids for Aerodynamic Analysis

Students Use Pointwise with Overset Grids for Aerodynamic Analysis

As part of their capstone senior project, engineering students at Technion – Israel Institute of Technology used Pointwise to assist in the detailed aerodynamic design of a highly-maneuverable, supersonic missile they designed.

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Advanced Structured Grid Techniques

Advanced Structured Grid Techniques

This video focuses on techniques for creating structured hexahedral grids with Pointwise. The relative merits of hexahedral versus tetrahedral elements on cell-centered finite volume simulations will be discussed, with special attention given to the sources and mitigation of numerical diffusion.

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Fluid-Structure Interaction on Wind Turbine Rotor Blades

Fluid-Structure Interaction on Wind Turbine Rotor Blades

Researchers at RWTH Aachen University are studying fluid-structure interaction on wind turbine rotor blades to develop strategies to increase their life expectancy and reliability. They use Pointwise's T-Rex for control over the meshing process.

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Pointwise Meshes for Computation of Basic States in Boundary Layer Stability

Pointwise Meshes for Computation of Basic States in Boundary Layer Stability

Boundary layer transition from laminar to turbulent affects heat transfer, drag, and engine performance, but is still poorly understood. Researchers at Texas A&M are developing computational methods for predicting transition across all speed ranges.

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Glyph Scripting Automates Terrain Meshing for Wind Turbine Siting

Glyph Scripting Automates Terrain Meshing for Wind Turbine Siting

Texas A&M University student Scott Evetts worked as a Pointwise intern this summer. He had no prior CFD or mesh generation experience, but he was able to accomplish a great deal in three months. Here he describes one of his Glyph scripting projects.

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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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Unsteady Engine Analysis with Moving Mesh in OpenFOAM®

Unsteady Engine Analysis with Moving Mesh in OpenFOAM®

Researchers at Politecnico di Milano have used Pointwise and OpenFOAM® along with moving, non-conformal mesh interfaces to analyze internal combustion engine performance. Their results on two benchmark cases compare well with experimental data.

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Co-Simulation for the Renewable Energy Sector

Co-Simulation for the Renewable Energy Sector

Many simulations within the field of renewable energy involve the coupling of different physics. An exemplary example is the analysis of a wind turbine. Here the structure (blades, tower, generator, gearbox, etc.) is interacting with the fluid.

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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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Computational Optimization of Rocket Engine Nozzles

Computational Optimization of Rocket Engine Nozzles

The primary aim of this project was to investigate the capability of using modern commercial computational fluid dynamics (CFD) packages (Pointwise and ANSYS Fluent®) as tools for analysis and design of rocket engine nozzles.

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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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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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Emirates Team New Zealand Uses Pointwise for AC72 Hydrodynamics Design

Emirates Team New Zealand Uses Pointwise for AC72 Hydrodynamics Design

The 34th America's Cup will be contested this fall in San Francisco Bay in high-speed, high-tech, hydrofoiling catamarans hitting speeds upwards of 40 kts (more than 46 miles per hour). These new AC72 class catamarans are 72 feet long (22 m), 46 feet wide (14 m) with a wing mast towering 131 feet (40 m) above the water.

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Texas A&M Uses Pointwise Meshes for Boundary Layer Stability Analysis

Texas A&M Uses Pointwise Meshes for Boundary Layer Stability Analysis

Researchers at Texas A&M University are studying boundary layer stability to gain insight into how transitions from laminar to turbulent flow occur. Their research has applications from low-speed flows in which the laminar-turbulent transition location affects drag and flow separation characteristics to hypersonic flows in which the difference between low laminar and much higher turbulent heating rates can determine whether a space vehicle will successfully pass through the atmosphere or burn up on reentry.

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Mesh Generation for Airframe Noise Computations

Mesh Generation for Airframe Noise Computations

As a company, one of Pointwise's goals is to be a good advocate of the meshing and computational fluid dynamics (CFD) communities. Being an advocate means participating in technical conferences and workshops and with other community members in a non-partisan way.

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Structured Meshing for Low-Speed Ship Maneuvering Simulations

Structured Meshing for Low-Speed Ship Maneuvering Simulations

In this webinar, we will demonstrate how to create a structured mesh suitable for low Froude number ship resistance predictions on the U.S. Navy Surface Combatant DTMB 5415 ship hull using hyperbolic extrusion and elliptic smoothing.

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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

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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Structured Meshing

Structured Meshing

Pointwise's structured grid techniques generate high quality quad and hex grids as in this example for an axial rotor blade.

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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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