Discover how the new Flashpoint automatic surface meshing capability, when coupled with hex-core volume meshing, can be used to generate efficient wake grids for marine applications quickly.
Watch an on-demand webinar of TCAE being used in conjunction with a Pointwise mesh to execute a steady-state simulation of the Potsdam Propeller. Case setup as well as a full suite of results, including thrust, torque, and performance coefficient are showcased.
Several new significant features have been added in our latest version, Pointwise V18.4. In this Q&A, our Product Planning Team will answer questions about the new features, the future of computational fluid dynamics (CFD), and the Pointwise development plan.
Engineers from two different companies teamed up to try to simulate a set of experiments using the Potsdam propeller. The mesh was completed using Pointwise and the simulation was done using TCFD. The results match well across a range of operating conditions.
Download the presentations from the Pointwise for Marine Workshop to learn how to increase CFD simulation accuracy and efficiency with meshing flexibility. You will also see technical background information about the how and why of the meshing techniques developed and honed with many years of experience in Pointwise.
Generating high-quality automated meshes for CFD analysis has been an industry goal for more than 30 years. Meshing solution developers have spent much of those years trying to create user-independent solutions, only to be stymied by the inherent complexities of geometry models, the mesh, and the CFD solution. Pointwise researchers have made tremendous strides in this area lately by building on the work of others over the last three decades. As a result, they expect to release several new features very soon that will help make automated meshing a reality. Find out more about these latest advances.
Read the case study, "Hybrid Meshing Key to Improving CFD Simulation Efficiency," which summarizes how a T-Rex hybrid grid showed up to a seven-fold improvement in solution efficiency compared to other approaches in predicting thrust and torque for a marine propeller.
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.
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.
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.
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. This resulted in good agreement with experimental data even for flow details like the interaction between blade wakes and the support tower.
Researchers at the University of Chalmers used Pointwise and OpenFOAM® to analyze unsteady propeller blade loads on ships that cause noise and vibration. Initial results are good and are being extended to include cavitation and pre-swirl stators.
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.
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.
Pointwise reduces the time needed for mesh completion with its flexible techniques for dealing with dirty geometry. In this 45 minute webinar, you will learn how to deal with and clean up the geometry on the U.S. Navy Surface Combatant DTMB 5415 ship hull.
The world's fleet of approximately 45,000 cargo ships transports around 8,000 million tons of cargo per year. What is, perhaps, somewhat less known is that these ships also transport some unwanted hitch-hikers in the form of organisms that get scooped up when ballast water is taken on.
Under its Corporate Enabling Research Program (CERP) initiative for future undersea warfare, the Australian Defence Science & Technology Organisation (DSTO) is investigating submarine concept designs.
The risk that tsunamis pose to coastal structures is not just from the wave impact, but also from the impact of debris that is carried by the fluid flow. Shipping containers are ubiquitous in coastal locations and represent a realistic debris object.
Engineers from W.R. Davis Limited and Pointwise, Inc. collaborated on a project to couple the ShipIR thermal analysis software with ANSYS Fluent® computational fluid dynamics (CFD) software for more accurate prediction of infrared signatures of naval vessels.