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Low Pressure Die Casting of Aluminum Tire Rim
Thermo-coupled mold filling simulation of an aluminum tire rim. The melt is driven into the cavity based on the pressure difference between melt reservoir and die venting
This February we announce the release of STAR-CCM+ v9.02 and one of the most exiting features to join the wealth of multiphase capabilities in this release is the Dispersed Multiphase (DMP) model. The simulation of applications such as aircraft deicing/anti-icing, and vehicle soiling and water management will now take a fraction of the time with the new Dispersed Multiphase (DMP) model in STAR-CCM+ v9.02. Until the release of the new DMP model, it had been necessary to model tiny water or rain droplets in wet free-stream air as huge numbers of discrete Lagrangian droplets. These droplets...
Linking Electromagnetic and Thermal Design of Electric Machines
The increasing pressure on the design and optimization of electric machines in all applications is driving improvements in simulation techniques. The coupled effects of heat generation due to the losses of the machine and temperature control methods within it are demanding new ways of simulating these phenomena. This webcast explains how to rapidly link these traditionally separate domains, EMAG & Thermal and presents the benefits of these techniques through user examples. In addition, presenters feature methods to handle SPEED and JMAG electromagnetic data as examples of a generic method...
Temperature coupled mold filling-solidification simulation
Centrifugal casting of automotive turbocharger wheels
Temperature-coupeld mold-filling simulation based on accelerated rotation
A Volume Rendering of the fluid flow of a rotating Pelton water turbine.
Simulating Flow & Heat in Gas Turbine Engines
Whether gas turbine (GT) engines are used for aircraft propulsion or for ground-based power generation, they involve sophisticated subsystems that ‘turn’ (compressors and turbines) and ‘burn’ (combustors). The goal with GT engines is to provide the rated power with maximum fuel efficiency and uptime reliability, while not exceeding government-regulated levels of emissions. While separately each GT subsystem must be designed for maximum performance, together they must also be designed to work harmoniously to ensure the entire GT engine system functions as intended. Trying to find an optimal...
I was recently traveling to a User Conference that CD-adapco held in Asia and spent a great deal of time staring out the window of various aircraft. With several hours to contemplate wings, I started thinking about boundary layers and how I have been simulating them. After reading “Boundary Layer Theory” by H. Schlichting, I had to double-check to make sure my designs were modeling the fluid phenomena near the wall correctly. What we design is far from well-known and validated fluid dynamics test cases. In fact, we invent some of the most unconventional products. As I opened the simulations...
Time-Accurate Simulation of Crown-Implant Cementation
STAR-CCM+ was used to perform numerical simulations on the complete implant abutment, cement and crown system. The objective of the simulations was to better understand the cement flow patterns during the seating of the crown, and to explore the effects of modifying the abutments and altering cement application techniques.
For this optimization, Optimate+ was used to identify Pareto optimimum designs. The objective functions were to maximize mass flow through the medical inlet and to minimize pressure drop. Best solution was obtained in 80 design evaluations.