Our Tech Tips for reliable turbomachinery blade development looks a little different this month because (unbeknownst to me) our IT department is moving some equipment this weekend, and well, I didn’t want you to miss out, so we’re cross-publishing this one on turbomachinery here on the blog!
Turbomachinery Blade Development with Aero-Mechanical Simulation
Engineers need advanced simulation tools to enable them to meet customer demands for more-efficient and reliable high-performance machines. Engineers must accurately predict aerodynamic performance across an increasingly wide range of speeds and operating conditions, and they also must guarantee reliability in the design. For example, they need to ensure that blade vibration will be damped across the operating range and that cyclic unsteady loading will not impact design life. Continue reading →
Turbomachinery — turbochargers, compressors, jet engines, gas turbines, pumps, etc.— are subjected to some of the harshest environments for an engineered product. High rotational velocities and extreme temperatures and pressures produce high static stresses. Couple on top of that the vibrations encountered due to the fluctuating and turbulent flow field, rotating turbomachinery components are primed for high-cycle fatigue (HCF) failures.
Traditionally, cyclic modal analyses are used to extract the vibrational modes and the appropriate modes from Campbell and interference diagram assessments are scaled based on past test data to arrive at estimates of the vibratory stresses for a fatigue analysis. Continue reading →
It’s official: Reaction Design has merged with ANSYS.
These are exciting times for both companies and for our industry. By joining forces, we are able to provide our customers with the most powerful and effective combustion simulation tools available in the world.
Let me introduce myself and Reaction Design. I am the CEO of Reaction Design, and for over 15 years, our company has created solutions that automate the analysis of chemical processes through computer simulation and modeling. We serve more than 400 customers from around the globe, including industry-leading internal combustion engine, industrial and aviation turbine manufacturers, materials processors and energy producers. Continue reading →
ANSYS AdvantageVolume VII Issue 3 is now available, and I am pleased to announce that the spotlight is on my area, turbomachinery (some call it rotating machinery). My industry colleagues at ANSYS and I contributed several overview articles that, I hope, explain the work we are doing to empower developers to design and build better, more energy efficient turbomachinery.
Of great interest to me are the customer contributions — for a number of reasons, including historical ones. I have worked in the business for so many years, and it is really gratifying to see how far the software and customers’ applications have advanced. The positive impact on new machinery development is amazing as well. Continue reading →
PCA Engineers (www.pcaeng.co.uk) is offering a free Vista CCD app for Android phones. Last year PCA made Vista CCD available as an app for iPhones. Of course, this is the same Vista CCD that is part of the ANSYS BladeModeler toolset used in centrifugal compressor design .
Recently, I talked with Chris Robinson from PCA to find out more about the motivation for making Vista CCD into a mobile app — as well as to find out how much interest it has garnered. Continue reading →
Well, it’s that time of year again. The ASME Turbo Expo (sponsored by the International Gas Turbine Institute, or IGTI) is right around the corner. For 20 of the past 23 years, this has meant a travel week for me, and this year it is to Copenhagen, Denmark, June 11 to 15. As turbomachinery is an important part of our business, ANSYS is a Silver Sponsor and strong participant in the event. And justifiably so. The ASME Turbo Expo is the premiere event for turbomachinery, bringing together the best and brightest from leading turbomachinery companies around the world. The draw is that the papers are generally of a high caliber, resulting from a peer review process that is generally only used for journal-quality publications. All the industry leaders are there, and the exposition is high quality and industry specific. Continue reading →
With the release of ANSYS 14.0, you now have access to some exciting new CFD models for transient rotating machinery blade row simulations.
All flows in rotating machinery are transient in nature, since the position of the rotor is a function of time. To obtain the highest fidelity solution possible,analysts today model all blades of each component and generate a solution using a transient simulation. This clearly is very time-consuming calculation. Continue reading →
Wave and tidal power generation is currently receiving significant attention from a number of sources. With many commentators pointing out that the industry is where wind power was at least 15 years ago — at the bottom of a very steep curve of adoption — there is a flurry of activity that is set to accelerate development at a rapid pace.
It’s easy to understand why there is such profound interest. The Carbon Trust estimates that the U.K. alone could capture just under a quarter of the global marine energy market — worth to up to £76bn by 2050, generating over 68,000 jobs. The analysis, the most in-depth of its kind, found that total marine energy capacity in the U.K. could be 27.5GW by 2050, capable of supplying the equivalent of over a fifth of current U.K. electricity demand to the grid.