CFD Helps Design Marine Vessels to Withstand Extreme Waves

Most of Brazil’s offshore resources are in deep waters so Petrobras has fostered substantial expertise to develop these fields. One area of importance is the design of marine vessels to withstand the extreme waves. While the discovery of 50 billion barrels of oil in recent decades has been a boon to Brazil’s economic outlook, the location of the oil has produced challenging engineering problems. Lying hundreds of kilometers offshore under up to 3,000 meters of seawater, 2,000 meters of rock and 2,000 meters of salt, the oil reserves are some of the most difficult to access on Earth. Engineers are systematically using best design practices and computational fluid dynamics (CFD) to increase the safety of marine structures and vessels used to drill and produce oil from Santos Basin fields.

CFD simulation of an FPSO in extreme waves marine vesselsComputational fluid dynamics simulation of an FPSO in extreme waves.

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The (Technical) Kindness of ANSYS Fluent aaS, a Matlab Example

coding matlab ansys fluentMy friend, a fellow Romanian, just told me a funny story. She just relocated to the U.S. and was asking her dentist “When will I have the root channel treatment?”. The dentist kindly replied “Did you mean root canal, my dear?” 

Human kindness is a beautiful thing. As a software developer, I often wish that computer programs would be equally technically kind. Most of them are not. Many times, when a user mistypes a command, applications crash. Continue reading

ANSYS 18 Fluid Dynamics Makes CFD Simulation Practical for Every Engineer

It is hard to believe that a year has passed and it’s time to update you on what’s new for ANSYS 18 fluid dynamics. There is so much to write about and so little space in this blog!

I’m tempted to detail our breakthrough Harmonic Analysis method that produces accurate turbomachinery simulations up to 100X faster.  Or I could focus on progress with Overset Mesh that speeds and simplifies simulations with moving parts. But that is not news, that just expected.  ANSYS has been delivering new levels of accuracy and advanced modeling capabilities from the beginning. Instead, I’m going to shine the spotlight on an area you might not expect from ANSYS: Ease of use. Continue reading

Smart Home Technology and Simulation Solutions

smart home technologyThe concept of the “automated home and smart home” was first introduced over 80 years ago, and has been facing different technical limitations since then.

Recently, service providers and home appliance manufacturers have launched a new initiative to bring the concept of smart homes to reality allowing subscribers to remotely manage and monitor different home devices from anywhere via smart phones or over the web with no physical distance limitations. Continue reading

Why Do Supercomputing Records Even Matter?

Some world records are the stuff of legend. The official land-speed record is 763 mph.  The tallest man living measures 251 cm. The fastest ball bowled by any bowler is 100.23 mph and the heaviest vehicle pulled over a level, 100 ft course weighs 68,090 kg.  Compared to these feats, records for supercomputing can seem a little flat. However, they are no less impressive and indeed, and stand to have a far greater impact on our day-to-day lives. Continue reading

CFD Simulation Enhances Machine Efficiency

On top of intensifying global competition, shifting consumer preferences and ever-shrinking time-to-market schedules, the growing need to address climate change is increasing  the pressure on businesses to  improve their machine efficiency and effectiveness with greater urgency than ever before. To meet these challenges, companies are finding that they need to revamp their product lines or even develop totally new products. Pump and fan manufacturers especially are seeing a need to for rapid innovation and design breakthroughs to increase machine efficiency. Continue reading

Serious CFD Calls for Serious CFD Software

Computational fluid dynamics (CFD) is a tool with amazing flexibility, accuracy and breadth of application. But the tools need to be properly applied in order to deliver insight and value. Nobody starts out as an expert in CFD software. Instead, we all progress from beginners to experts over time.

For example, when I first became interested in cycling, I went shopping for a new bike. I needed something better than the old junker I was riding at the time but was a bit intimidated by cycling technology. Those small, hard saddles looked plain uncomfortable! Skinny tires! And clipless pedals were a mystery. So I ended up with a “cross” bike. Continue reading

Upstream and Downstream of a Hyperloop Pod

If you’re a regular subscriber of the ANSYS blog, you’ve probably already heard about Elon Musk’s Hyperloop Pod Competition. Texas Guadaloop is a team from the University of Texas at Austin that was chosen to participate in this Hyperloop Design Weekend Competition back in late January among 150 other teams after SpaceX accepted our preliminary Design package.

From the beginning of our design iteration, Guadaloop has been committed to creating a simple and executable design. One of the major challenges we encountered in the external configuration of our pod design was determining the aerodynamic viability of propelling our pod through a tube. With the elimination of a compressor in our design, the Kantrowitz limit needed to be actively combated. Continue reading

10 Reasons to be Excited About ANSYS 17.0 for Turbomachinery Simulation

For the past few weeks, the ANSYS blog has published many posts and ANSYS has held a number of webinars describing the advantages that ANSYS 17.0 provides for turbomachinery simulation. In the following, I will review these events and provide my summary of 10 (out of many more) exciting developments:

  1. A focus on HPC delivers significant speedups and ability to handle larger models, for both CFD and mechanical simulation.
  2. A new mechanical model simulates journal bearings, additionally providing important inputs of stiffness and damping for rotordynamics simulation.
  3. Fracture analysis is faster and easier with arbitrary crack surface definition and post-processing.

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Automotive Aero-Thermal Multidisciplinary Optimization Using a Common Model

ansys 17 10X engineering simulationNow, armed with the ability to perform true multidisciplinary optimization, automotive aero-thermal engineers can be 10 times more productive!

Numerous aerodynamic and thermal aspects need to be considered while designing cars, trucks and all other ground vehicles. Aerodynamic drag forces need to be studied as they affect the vehicle’s fuel efficiency; underhood component cooling needs to be managed carefully to avoid damage from the engine’s heat; aeroacoustic effects have to be calculated to reduce undesirable noise; and cabin climate control needs to be optimized for passenger comfort. CFD simulation of each of these aspects requires different models and methods. Continue reading