Let's Talk Meshing

Let's Talk Meshing Events

Pointwise's Let's Talk Meshing interactive forums encourage discussion about various mesh generation topics through webinars, webcasts, and live events. We will apply Pointwise to solve a real-world problem or demonstrate a novel technique to accomplish a meshing task and then you will have the opportunity to ask questions and comment about what you saw.

The Influence of Meshing Strategies on Simulation Efficiency

The Influence of Meshing Strategies on Simulation Efficiency

Using a marine propeller as a model, the aim is to better understand the relative merits and drawbacks of various meshing strategies. Also, this webinar focuses on simulation efficiency and its dependence on the mesh generation process.

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Pointwise Meshing Technology Conference Germany

Pointwise Meshing Technology Conference

At this conference we discussed the technology behind Pointwise and the best ways to use them to produce meshes for CFD simulations.

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Efficient Meshing with Pointwise

Efficient Meshing with Pointwise

See how Pointwise increases the accuracy, speed, and reliability of CFD analysis. Learn how others use Pointwise for demanding CFD applications.

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Towards Mesh Adaptation with Pointwise

Towards Mesh Adaptation with Pointwise

In this webinar, we introduce adaptation in Pointwise and how this upcoming feature is used to improve upon existing mesh adaptation solutions.

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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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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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Glyph Scripting with Python in Pointwise

Glyph Scripting with Python in Pointwise

In this video, we demonstrate how to configure the new Glyph Server in Pointwise and add support for new scripting languages including Python. We will also introduce some example Python scripts that highlight the utility and value of these new Glyph features.

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A hybrid boundary layer resolved volume mesh generated from a quad-dominant surface mesh and T-Rex results in a predominantly flow-aligned hexahedral near-body grid.

Unstructured Quad & Hex Meshing Using Pointwise

In this webinar, we highlight four new major features available in Pointwise V18: quad-dominant surface meshing, farfield shape creation, unstructured hex-dominant boundary layer meshing, and volumetric sources. Starting with an existing aircraft geometry, we demonstrate the entire meshing process beginning with the generation of a quad-dominant surface mesh.

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Pointwise provides users several tools to help identify potential problems with imported CAD, and repair these issues either on the geometry itself or by healing grid entities.

Mastering Geometry Cleanup Tasks in Pointwise

This webcast aims to remove any ambiguities involving the suite of CAD tools available in Pointwise. Participants should come away with a better understanding of the geometry creation and editing utilities available to them, how to better anticipate their behavior, and how to identify situations that can influence meshing decisions.

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Various meshed components of the DrivAer benchmark model.

Localized Remeshing Strategies for Parametric Models in Pointwise

In this video, we demonstrate a couple of different strategies users can leverage in Pointwise to limit changes to only those localized regions in their computational domain that have been modified from one configuration to the next helping them spend more time focusing on the results of their parametric studies.

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Talking CFD Live

Talking CFD Live

A live Q&A / roundtable session to round out the first season of the Talking CFD podcast.

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Hybrid volume mesh generated for the vehicle using Pointwise’s T-Rex algorithm

The Stanford Solar Car Project's Race for Aerodynamic Efficiency

The Stanford Solar Car Project, a student-run organization, has been designing and building solar cars since 1989 and arrives in Darwin every two years with a stunning new vehicle. The latest vehicle in their lineup, Arctan, took 6th place out of 29 teams in the 2015 competition with a time just over 41 hours.

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Talking CFD, EP06 - John Chawner - Pointwise

Talking CFD, EP06 - John Chawner - Pointwise

In this podcast John Chawner, President & Co-Founder of Pointwise, joins Talking CFD to discuss what it takes to build a CFD business with longevity.

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Resulting adapted mesh and pressure coefficient (Cp) contours for flow around an ONERA M6 wing.

Meshing Considerations for Adjoint-based Mesh Adaptation

In this video, we demonstrate some recommended best meshing practices in Pointwise and demonstrate adjoint-based mesh adaptation using NASA Langley's FUN3D solver to accurately compute the flow over an ONERA M6 wing.

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Automobile overset mesh solution using Pointwise, Suggar++ and Caelus.

Overset Grid Generation and CFD using Pointwise, Suggar++, and Caelus

In this webinar, we will highlight several best practices for generating component grids and the procedure for setting up the necessary inputs for Suggar++. Finally, we will demonstrate an overset flow simulation using Caelus, a freely available fork of OpenFOAM® developed by Applied CCM.

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Glyph scripting offers the ability to automate all or part of the CFD meshing process within Pointwise

Getting Started with Glyph Scripting

This short course will help you uncover the power of scripting by introducing the syntax, our best practices, and references. We have picked an application that can benefit from Glyph and will demonstrate the entire scripting process.

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Modified T-Rex parameters resulted in an improvement in the tetrahedral gap mesh

Using T-Rex to Generate Unstructured Hexahedra for an Automotive Intake

Discover how to leverage T-Rex (anisotropic tetrahedral extrusion) to create unstructured hexahedra quickly in these instances. Best practices for the generation of both surface and volume meshes will be discussed in addition to illustrations on how to troubleshoot problem areas in your mesh.

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High quality viscous layer blocks can be extruded while constraining the boundaries to the hub and shroud.

Strategies for Multiblock Structured Meshing of Turbine Blades

Discover how to leverage T-Rex (anisotropic tetrahedral extrusion) to create unstructured hexahedra quickly in these instances. Best practices for the generation of both surface and volume meshes will be discussed in addition to illustrations on how to troubleshoot problem areas in your mesh.

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Using OpenVSP and Glyph Scripting in Pointwise enables engineers to more readily run high fidelity experimental design and parametric trade studies during conceptual design.

Using Automated Meshing for Analysis in Conceptual Design

In this video we demonstrate how Pointwise's scripting environment, Glyph, can be used to automate creation of viscous, anisotropic meshes suitable for high fidelity analysis such as computational fluid dynamics (CFD) and finite element analysis (FEA) using a parametric generic transport aircraft model exported from OpenVSP.

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High Order CFD Technologies

High Order CFD Technologies

by The Centre for Modelling and Simulation

Hear about the development and industrialisation of HO CFD methods, gaining an appreciation of the current state of the art - as well as a view on the future capability. High-order CFD techniques are attracting considerable research interest, as they offer the potential for significantly more accurate fluid dynamics simulation - particularly in the age of many-core processors (such as GPUs).

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Hybrid volume mesh generated for the full DrivAer model using Pointwise's T-Rex with cells colored by volume.

Automotive Design Optimization using Pointwise, Sculptor, and OpenFOAM

Using the DrivAer mesh, we define a set of volumetric shape deformations using few design variables within Sculptor. A technology called Arbitrary Shape Deformation is used to smoothly morph the nodes of the mesh that are inside of the volumetric deformation space. Even for large deformations, this technology can maintain surface boundary layer thickness and orientation.

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This grid showcases our new ability to extrude from wingtips with poles.

Grid Extrusions & Boundary Conditions: What's New?

The latest Pointwise release has several new features. Among these are updates to extrusions and extrusion boundary conditions. The boundary conditions, in particular, are now more similar to NASA's HYPGEN code.

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Plugins integrate with the Pointwise user interface to export CAE files.

An Introduction to Pointwise Plugin Development

In this Let's Talk Meshing webcast, we present an introduction to writing a Pointwise plugin using the CAE plugin software development kit (SDK). The SDK is an application programming interface (API) that you can use to program Pointwise to export your mesh to your solver-specific format.

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A watertight hybrid surface mesh was created consisting of both structured and unstructured domains.

Land-Speed Record Attempt Uses High-Fidelity, High-Speed CFD

In this Let's Talk Meshing webcast, we present an introduction to writing a Pointwise plugin using the CAE plugin software development kit (SDK). The SDK is an application programming interface (API) that you can use to program Pointwise to export your mesh to your solver-specific format.

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The new overset Examine diagnostic shows fringe/donor volume ratio in this example of an aircraft wing.

Overset Tools and Other New Features in Pointwise V17.3

Join us as we demonstrate and discuss the new features available in Pointwise Version 17.3. You will learn about the new overset grid assembly tools and other new features like the Examine in Solve command. This webinar will demonstrate how you can make your meshing experience much more efficient using all the new tools in this latest release of the software.

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Creating a script in Pointwise can be a quick process with the right approach.

Introduction to Scripting in Pointwise

In this video, we present a basic introduction to scripting in Pointwise and lay the framework for customization of the meshing process through scripts. Scripting in Pointwise is accomplished with Glyph, an extension of Tcl.

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Generating structured grid topologies for non-rectangular geometries such as this fillet can be expedited through the use of utility scripts and other tools in Pointwise.

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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Generating structured grid topologies for non-rectangular geometries such as this fillet can be expedited through the use of utility scripts and other tools in Pointwise.

SU2-Pointwise Joint Workshop

Pointwise and the SU2 team at Stanford University hosted a joint workshop that walked attendees through the end-to-end CFD process using Pointwise and Stanford's open source CFD code, SU2.

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This image, a CFD solution of the DrivAer model developed by the Institute of Aerodynamics and Fluid Mechanics at Technische Universität München, was created using Pointwise, OpenFOAM® and ParaView.

The State of Simulation: It's a Wonderful Time to be Using CFD

by ENGINEERING.com

John Chawner, president of Pointwise, will discuss the current state of computational fluid dynamics (CFD) during an ENGINEERING.com webinar on 16 September.

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From back to front: fully structured (hexahedral), unstructured with extruded hexahedral boundary layer, and unstructured with extruded prismatic boundary layer.

Mesh Topology Influence on Volute Aerodynamic Performance Computed Using Code Leo

In this webinar, we evaluate a generic volute design. Simulations were performed using Code Leo, a computational fluid dynamics (CFD) solver developed by AeroDynamic Solutions (ADS), on three different grid types generated with Pointwise: multi-block structured, unstructured with a hexahedral boundary layer, and unstructured with a prismatic boundary layer.

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From back to front: fully structured (hexahedral), unstructured with extruded hexahedral boundary layer, and unstructured with extruded prismatic boundary layer.

Tips for Handling Complex Geometries, Very Large Grids

This video steps you through the meshing process for creating an unstructured grid around a moderately complex geometry. We pay particular attention to solid modeling, uses for scripting, local grid refinement, and creating orthogonal cells in the boundary layers.

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An unstructured mesh containing hexahedra, prisms, and tetrahedra generated by T-Rex. Image created with EnSight.

Introducing Unstructured Hexahedral Extrusion in Pointwise V17.2

See how Pointwise V17.2 will help you quickly generate unstructured hexahedral boundary layer meshes using T-Rex (anisotropic tetrahedral extrusion).

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CFD solution computed using SU2 captures high resolution shock structures present on the surface of the aircraft and propagating well into the farfield.

Supersonic Aircraft Shape Design Powered by SU2 and Pointwise

This webinar details how Pointwise and SU2 can be used to tackle supersonic aircraft design. Watertight surface and volume meshes for complex geometries can be quickly generated in Pointwise and exported to the native SU2 format.

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Structured Grid for an Aneurysm

Structured Grid for an Aneurysm

As part of the CFD Challenge hosted by Dr. Gabor Janiga at the Otto von Guericke University Magdeburg, two aneurysm geometries were provided and participants were encouraged to use CFD tools to predict which of the two models had a higher probability of rupture. In this video, we will demonstrate how to create a multiblock structured volume mesh for one of the aneurysm geometries.

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OpenFOAM MRF Solution for the Baffled Mixing Tank.

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

Mixing tanks are heavily used in process industries where high-speed agitation and rapid mixing are necessary. While impeller-stirred tanks promote efficient mixing, the highly three-dimensional flows pose several meshing and simulation challenges. We will address these challenges using a generic, baffled tank stirred by a Rushton turbine.

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New Examine controls allow you to set cut plane increments and range.

Learn About the Newest Capabilities in Pointwise

With the recent release of Pointwise V17.1 R4, it is a good time to show off the latest additions. In this webinar we will demonstrate features such as the latest CAE solver additions, the capability to easily delete multiple control points at once from a connector, a new block elliptic solver boundary condition, and many more.

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Hybrid meshing coupled with complex multi-phase cavitation models and interactive post-processing allows CRAFT Tech to accurately predict the performance of a high energy water injection pump.

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

Combustion Research and Flow Technology (CRAFT Tech) utilizes the best CAE tools available to help investigate and understand the complex cavitation phenomena occurring in high energy water injection pumps. The complex geometry and physics of the problem make it a challenge to predict the unsteady interactions between the various components of the pump and the potential for cavitation in the impeller.

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The Grid Merge command can be used to find and repair topology issues.

Meshing Forensics II: Overcoming Common Structured Gridding Pitfalls

Our last meshing forensics webinar focused on issues typically encountered when working with solid models and unstructured meshes. This webinar focuses on road blocks commonly seen when working on structured grids. Topological requirements of structured grids and loose CAD tolerances can cause missteps in the gridding process.

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Examining the quality of an unstructured block.

Meshing Forensics: How to Recover When Things Go Wrong

Based on the popularity of this topic as our special short course at the just completed Pointwise User Group Meeting, Meshing Forensics is one webinar you won't want to miss. One attendee said this was his favorite training session, adding, “Meshing Forensics was fantastic with quick but essential tips.”

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Advancing front surface mesh on brake assembly.

What's New in Pointwise V17.1

Learn about the exciting new features available in Pointwise Version 17.1. From new CAE solver functionality to an advancing front algorithm for unstructured surface meshes, Pointwise V17.1's new capabilities will help you generate the mesh you need.

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