Unsteady methods are becoming increasingly important in turbomachinery design and optimization because they model transient flows and performance more realistically. Unfortunately, using time-accurate CFD simulations to understand these unsteady flows in compressor stages can be computationally expensive. In recent years, ANSYS has been working on methods for modelling the transient flows in turbomachinery stages that require as few as single-blade passages per row but with equivalent accuracy. As a result, engineers can drastically reduce computational time and memory resources by up to 10X. Continue reading
Since starting out as a segmented group of individuals passionate about high-speed technology, Berkeley Hyperloop (bLoop) has come a long way in our (roughly) two years of existence. What started as a vague mission to create a broader impact on the future of transport is now a tangible team of engineers, designers, marketers, logisticians and everything in between and we have no plans of stopping now. Of course, we didn’t do it alone. We’d be remiss if we did not acknowledge the generous support of sponsors like ANSYS, sponsors that have helped us realize the dream of designing and bringing a functional Hyperloop pod to that only existed in our wildest dreams up until a few months ago.
About a year ago, my colleague, Eric Bantegnie, wrote a blog that described how we, along with our partners PTC, NI and HPE, had created a digital twin of a pump and one of its valves. We showcased this at PTC LiveWorx. I’m happy to announce that work continues with our partners on a new and expanded version of the digital twin of this pump and its valves to its motor and electric drive.
Why is this exciting and important? This enhanced digital twin demonstrates a multi-domain system including fluids, electromechanical, electromagnetics and thermal aspects, coupled with a user friendly Human Machine Interface (HMI), to solve a challenging problem that faces motor designers and operators — determining, monitoring and maintaining the optimal temperature at which to operate the motor and its components on a consistent basis. Why does this matter? Every 10 degree Celsius increase in operating temperature of the motor and components over their optimum temperatures decreases the life of the motor by half! Continue reading
A few weeks ago I got a very close look at a F-35, and was able to talk a bit with one of the test pilots. “This is not an aircraft,” he told me. It’s more a kind of spaceship.” I believe he is right. This is not an aircraft, at least not the kind of aircraft we are used to.
Two generations, face to face
ANSYS CFD is on the verge of a second renaissance in high-performance computing (HPC). The first, spanning more than a decade, has seen tremendous leaps in both the depth and breadth of HPC capabilities. Depth (or heights, rather) in the size of the scalable clusters — first 1000s, then 10K, and recently 100K core counts — and breadth of coverage across solvers, physics, post-processing, even file I/O, covered the gamut of high-performance simulations. The trend, in fact, is exponential, as evident in this chart, and spans many years of ANSYS Fluent software releases. While there are other impressive scientific scalability demonstrations, ANSYS Fluent set the standard for industrial HPC CFD simulations. Continue reading
For most of human history, our mode of mobility was feet — our own feet, or those of some domesticated animal. Whenever we wanted to go somewhere, we walked or used horses. These quadrupeds remained the dominant mode of inter-city and intra-city transport for over two thousand years. Then in the mid-nineteenth century, the mode of inter-city transport changed over from horses to railways. Another half a century later the horse also disappeared from cities and towns as intra-city transport was taken over by automobiles. In the mid-twentieth century airplanes became the dominant mode of inter-city travel in North America, with railways continuing in addition to airplanes in Europe and Asia.
And that’s where we are today — stuck with trains, planes and automobiles for nearly a century. But not for long. Continue reading
UWashington Formula Motorsports is a student-organized team that competes in Formula SAE. We design, build and test two small, formula-style race cars for the competition: one combustion and one electric. Each year we compete nationally and internationally at Formula Student Lincoln and Formula Student Germany. Everything our club produces is done entirely in-house. We produce our own designs, perform our own machining, and manufacture our own carbon fiber parts. Through the entire design process, UWashington Formula Motorsports strives to validate design decisions with sound engineering methods, and the simulations we run using ANSYS make this possible. Continue reading
Industrial IoT and digitization will loom large as the industry professionals gather at this year’s Offshore Technology Conference (OTC) in Houston, Texas, May 1-4. Over the past few years the industrial IoT has grown beyond information technology concerns (gathering data, data processing and security, etc.) and now includes predictive maintenance of assets, prognostics health management (PHM), reducing cost and nonproductive time, eliminating breakdown and failure.
One of the first steps in realizing the benefits of the IoT for the energy industry is to create intelligent machines/digital products. As evident from consumer product devices, for example smart watches, soon if not already, oil and gas equipment will also need to perform more than just a mechanical function and must become smart or intelligent. Continue reading
In honor of Earth Day, which was celebrated this past weekend, I would like to share my perspective on energy efficiency.
Every month, I receive a home energy usage report from my friendly utility company. I had been puzzled for years why I was using 50 or 60% more energy than my efficient neighbors. At social gatherings, I asked my friends about their energy efficiency numbers and we collectively bemoaned the mysterious efficient neighbors. Who are these people? Do they even heat or cool their homes?
Then last year, I purchased and installed the Nest thermostat. My utility company even pitched in with a price discount offer. Over time my energy usage has declined when compared to my neighbors. The most recent report shows that I used 21% more energy than my efficient neighbors. This is down from 51% in the similar period two years ago. The artificial intelligence algorithms and smart silicon are making a difference! Continue reading
Many claim that engineering simulation in healthcare will be critical. The only way to get a clear and complete answer would be to ask the question “Is simulation essential for healthcare?” to the people using computer modeling and simulation (CM&S) routinely for medical device design, biotech or pharmaceutical process modeling during the ANSYS Healthcare Innovation Conference in Cambridge, MA on May 10th. Continue reading