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Computational Fluid Dynamics Blog - LEAP Australia

How to Shrink Wrap a biomedical STL file in Fluent Meshing

A How-To guide for Fluent Meshing's new Shrink Wrap tool which provides a powerful, easy-to-use solution for meshing complex STL geometries. This is a step-by-step guide on how to produce a high-quality CFD mesh for an abdominal aorta, imported in medium-resolution STL format (NIH).

ANSYS simulation workflow for pump systems – a fascinating webinar

ANSYS simulation workflow for pump systems – a fascinating webinar

We encounter pumps in our everyday life in all manner of applications, be it in our dishwasher or car; or indirectly in water supply, oil […]

ANSYS CFD assists the Pharmaceutical Industry to address scale-up challenges

ANSYS CFD assists the Pharmaceutical Industry to address scale-up challenges

For R&D and production engineers working in the pharmaceutical industry, the real challenges commence after a new drug molecule has been discovered. They are then […]

Fast ROI using simulation of polymer manufacturing processes

Fast ROI using simulation of polymer manufacturing processes

ANSYS Polyflow is designed to simulate blow moulding and extrusion processes, as well as mixing of complex rheology liquids, film casting, extruder screw simulation, gravity assisted gob forming, glass pressing and mould filling. Many companies deliver a fast ROI of within 1 year using Polyflow for polymer processing simulations.

Recent advances in Multiphase Flow Modelling

Recent advances in Multiphase Flow Modelling

What's changed in the world of multiphase flow modelling in the past 2-3 years? As always, an understanding of the physics of the system that you are modelling remains the number one priority, however, a number of new developments will help you address a wider range of multiphase flows and in a faster and more effective way.

Using CFD to stop overheating of electronics and electrical equipment

Using CFD to stop overheating of electronics and electrical equipment

Simulation technology allows us to accurately predict the thermal performance of electronics/electrical equipment during early design stages, giving engineers the confidence that thermal failures in the field (and the adverse warranty issues they may bring) can be considered a thing of the past.

Exciting advances in Wind Engineering using ANSYS CFD

Exciting advances in Wind Engineering using ANSYS CFD

Wind engineering requires engineers to consider how a building responds to its environment as well as the effect that the structure will have on the space around it. Learn more about the use of CFD in wind engineering...

Using CFD to predict flow-generated noise and other aeroacoustic effects

Using CFD to predict flow-generated noise and other aeroacoustic effects

Flow-generated noise can have significantly adverse effects on our everyday lives. Product designers and engineers at the world’s most innovative and successful companies have recognised this fact, and are increasingly using CFD to incorporate noise mitigation strategies into their product design process.

Smart gas appliance manufacturers use rising gas costs to their competitive advantage

Smart gas appliance manufacturers use rising gas costs to their competitive advantage

With gas prices predicted to skyrocket in the next few years, an opportunity exists for engineers and designers of gas-fired appliances at smart manufacturers to use CFD to gain an edge in the competitive Australian market.

Solving Complex Combustion Challenges with CFD

Solving Complex Combustion Challenges with CFD

Combustion technology underpins almost every facet of our modern life, from electricity generation to industrial heaters/furnaces through to automotive engines. Increasing social and economic pressure to minimise energy use and reduce pollution is driving the use of CFD to improve the efficiency of combustion processes.

LEAP Australia is the leading engineering software solutions provider in Australia and New Zealand, assisting thousands of companies with their design and engineering problems.

The aim of this site is to share the extensive experience and knowledge we have gained over the years in working with Computational Fluid Dynamics.

If you are also interested in Finite Element Analysis we encourage you to visit our FEA blog.

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As much as we all desire perfectly prepped CAD for our CFD simulations, it can often be prohibitively difficult or even impossible to obtain.  However, the Shrink Wrap tool in Fluent provides a convenient, easy-to-use solution for problems just such as this.  In this post, we’ll be producing a high quality mesh for an abdominal aorta, which is imported in medium-resolution STL format (NIH). Figure 1. Aorta geometry, imported in STL format. After importing, we use ...
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We encounter pumps in our everyday life in all manner of applications, be it in our dishwasher or car; or indirectly in water supply, oil pipelines, cooling water pumps and many more applications. In fact, the very significant fraction of the world’s energy used for pumping may well surprise you - and therefore the potential opportunity for improved pump design to deliver big savings (both in dollars as well as greenhouse gas emissions), a point which hit home ...
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velocity vectors in an unbaffled reactor
For R&D and production engineers working in the pharmaceutical industry, the real challenges commence after a new drug molecule has been discovered. They are then tasked with taking a process that has been designed and verified at a small-scale (such in a test tube or a micro-reactor) and successfully reproducing this at an industrial scale (for full production volumes). This process is typically done in two stages: 1) by first designing a process and validating ...
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ANSYS PolyFlow Featured Image
Simulation of manufacturing processes for polymer components combines elements of the most challenging non-linear finite element problems with additional thermal, viscous and material flow considerations. These processes exist in the middle ground between Lagrangian based structural finite element simulations in which the mesh and nodes defining the bodies move and deform with the material, and Eulerian based CFD simulations in which the mesh is static and the material moves through the mesh. In the former ...
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Looking back at our previous blog series on Multiphase Flow (Parts 1 and 2), it is interesting to see what has changed in the world of multiphase flow modelling. In those blogs, we pointed out the need to understand the physics of the system that you are modelling and that remains the number one priority today. Key points of the blog were the identification of the flow regime and interaction between the different phases, particularly ...
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As engineers, we often need to deal with sleepless nights worried about potential overheating and thermal failure of electronics or electrical equipment that we're designing.  This may occur in extreme environments or under harsh conditions, or even (for poorly conceived designs) just with prolonged continuous usage in normal ambient conditions.   Fortunately, modern simulation technology now allows us to accurately predict the thermal performance of electronics and electrical equipment during the early design stages, giving engineers the ...
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In the field of wind engineering, LEAP has seen first-hand the rapid transition of CFD from academic curiosity to an established and well-validated methodology that is accessible to all engineers and consultants in the industry. In Australia and New Zealand, ANSYS CFD continues to gain acceptance as a tool for wind studies involving façade loading and pedestrian comfort. Challenges are posed by complex urban geometries and the transient physics involved, but ANSYS has invested heavily in ...
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Environmental noise can have significantly adverse effects on our everyday lives, including interference with communication, sleep disturbance, learning acquisition, annoyance responses, performance effects as well as our health through cardiovascular and psycho-physiological effects.  Product designers and engineers at the world’s most innovative and successful companies have recognised this fact, and incorporate effective noise mitigation elements into their product design process.   When we mostly think of noise harshness, we tend to think “loud and up-close”. Doubling the ...
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Flow path optimization to maximise heat exchange and improve efficiency
Australian gas prices for both commercial manufacturing and domestic households have been increasing steadily, with a 36% increase in gas prices over the last five years. Gas prices are now are tipped to skyrocket further from now until 2018, with regulatory changes meaning the Australian gas industry is ramping up gas production to export to Asian markets where prices are considerably higher.  It is forecast that the effect of this structural change in Australia’s gas market is likely ...
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Combustion technology underpins almost every facet of our modern life. Electricity is generated by the combustion of coal, oil, gas and increasingly biomass. Cars, lorries and even lawnmowers are powered by engines that burn petrol or diesel. Industry uses gas-fired heaters in many processes to generate heat for applications as diverse as glass manufacture to calcination. All this is taking place in an environment where there is increasing social and economic pressure to minimise energy ...
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