Simulation Glass Feeding

Animation glass feeding, displayed in NOGRID points CFD software

Figure 1: Animation of glass gob formation in the glass feeder

Simulation of glass feeding processes can perfectly be performed with our CFD software NOGRID points.

The problem below was created by the ICG-TC25 members (International Commission on glass, Technical Committee 25), who are engaged in R&D activities in the field of numerical simulation of glass forming processes. For more details see ICG-TC25 Bench Mark Problem II: "Gob Forming Benchmark".

Glass gob quality essential

Glass making processes from glass containers to tableware to TV glass begin with a liquid glass droplet (gob) being delivered to the forming machines where it will be molded into the finished glass product. In a great measure the success of the entire operation depends on the uniform quality of the glass gob.

Valuable information by simulation of glass feeding

Simulation of glass feeding with NOGRID points delivers valuable information that helps to assess the feeding process. For the purpose of this benchmark the glass gob delivery system for a large champagne glass bottle will be modeled. This process was selected because it is far enough removed from current practices to avoid concerns about proprietary information. However, it is close enough to current champagne glass bottle gob weights and shapes to closely many glass gob forming processes.

Figure 1 shows the velocity profile and the temperature profile in the simulation of a glass feeding process computed with NOGRID points.

Benefits of NOGRID points CFD software

NOGRID unites the capabilities to handle free-surface flow and moving parts within the domain, allowing the simulation of any conceivable geometry and operating mode, such as

fully 3D computation solving complete Navier-Stokes equations
easy and intuitive setup
freely definable material properties by equations or curves, also for non-Newtonian fluids
evaluation of chemical reactions and corresponding heat source terms
open or closed domains including inflow and outflow areas (non-batch mode)
moving of parts

Whitepaper Nogrid points Technology

Why choose Nogrid?

NOGRID provides professional CFD software for the simulation of fluid flow, heat and mass transfer, and chemical reactions. Its efficient modelling workflow helps engineers analyse flow behaviour, evaluate designs and make informed decisions without creating a conventional volume mesh.

Faster model preparation

With NOGRID, only the geometry boundary needs to be meshed. The finite points inside the fluid domain are generated automatically according to user-defined settings, both at the start of the simulation and during the calculation.

This approach reduces preprocessing effort and makes it easier to prepare complex geometries and cavities for simulation.

Efficient CFD workflow

The modelling process follows four straightforward steps:

Build the geometry. Mesh the boundary. Define the simulation. Start the calculation.

NOGRID is designed to provide short computation times, including for applications involving complex cavities. Engineers can use the resulting data to examine flow distribution and other relevant flow characteristics.

Better insight into fluid-flow processes

CFD solves the fundamental equations governing fluid flow. NOGRID software enables engineers to predict and analyse the behaviour of fluids and related physical processes before or alongside physical testing.

The simulation results can support:

evaluation and comparison of design alternatives
optimisation of construction and operating parameters
improved planning reliability
reduction of development time and testing effort
faster progression from design to market or operation

Steps from geometry generation to simulation results

TRAINING

Our two-day training courses teach participants how to set up, run and evaluate simulations efficiently with NOGRID CFD software. The courses include practical guidance for handling different types of simulation cases.

For more details please refer to Training Courses →

Technical Support

Professional support is available from the beginning of your work with NOGRID. Our technical team assists users by telephone and email with software operation, case setup and simulation-related questions.

For more details please refer to Software Support →

Simulation Service

When internal time, expertise or resources are limited, NOGRID can support your project with individual numerical simulation services. Our engineers develop and evaluate CFD models based on the specific requirements of your application.