Fidelity and accuracy is critical in CFD simulation. After all, physical prototyping and testing can only be reduced and even replaced by CFD if one can expect accurate results. Up to now, high fidelity, high accuracy results came with a price. Complex geometries — the realistic, no holds barred type — required hours of manual effort to clean up the model and then prepare the mesh. Users were tempted to cut corners and take short cuts that sped up prep but took a toll on accuracy and fidelity. Unfortunately, there is no way of knowing just how those inaccuracies skewed the results, putting any recommendations in doubt. For example, if you don’t resolve a boundary layer correctly then any aerodynamic drag figures could be highly inaccurate. Continue reading
Clean water is one of the most basic necessities of our lives. Our health depends on it. What transpired in the Flint water crisis in Michigan recently has shocked the nation. President Obama declared a state of emergency and there are demands that the Governor of Michigan steps down. It all started when, in order to reduce cost, the City of Flint officials decided to use Flint River water for residential consumption without adding orthophosphate, a chemical that coats the pipe interior thereby inhibiting any leaching of lead. Continue reading
With a number of emerging technologies and trends on the horizon, it is an exciting but challenging time to be an engineer. The convergence of new technologies into Industry 4.0 is ushering in an era of unbound product innovation. With the advent of the Internet of Things, a tighter integration of the digital world and the world of machines will profoundly transform consumer and industrial markets. New advanced materials are enabling engineers to create substantially lighter and sustainable designs. New technologies are changing the way we harvest, store, and use energy. And the possibilities of virtual reality and additive manufacturing are freeing engineers to explore more radical designs, free of manufacturing constraints. Make no mistake, engineering simulation will be the key to unlocking the power and potential of this new industrial revolution, and to this end, I am excited and honored to announce the next release of our simulation platform on behalf of over a thousand R&D professionals at ANSYS. Continue reading
I’d like to share a video with you that illustrates ANSYS ACT’s three-prong development strategy – product coverage, third-party application integration and enhanced workflows.
Editors Note: Today’s Guest Blog is brought to you by HyperXite’s Project Leads at the University of California, Irvine (UCI) who are competing in the SpaceX Hyperloop Pod Design Contest.
What if there was a system of transportation cheaper, faster and most importantly, safer than driving, flying or boating? This next evolution in transportation is the Hyperloop, to design and build a pod that can transport 840 people between Los Angeles and San Francisco at 760 mph while floating on a cushion of air. Developing this technology is, however, a huge endeavor and the SpaceX Hyperloop Pod Design Contest was created to ‘crowd source’ the design of the vessel. Continue reading
Based on a recent announcement that ANSYS and Cray has smashed supercomputing records, an editor of a well-known magazine followed up on and asked me whether this achievement might help to compensate the slowdown of Moore’s Law. Although I was able to briefly respond, it was also end of the day and while driving home the question stayed in my head and was the origin of this blog. Continue reading
You may have read a quick blog post at Desktop Engineering about ANSYS’s electric machine simulation capabilities. Here we dive into the technical aspects and implications of thermal simulation for electric machines.
Modern electric machines are designed to meet a wide range of applications, all facing a variety of different technical challenges. They are designed to be compact with high power densities, to have integrated power electronics, to be high-speed for higher power density, and to handle harsh environments.
These challenges all have thermal implications that affect the lifetime and performance of the electric machine and power electronics, and must be balanced with cost goals. ANSYS simulation tools, Fluent and Maxwell, can be used to predict the thermal and electromagnetic performance of these systems, and can therefore be used to optimize design choices for both thermal and cost considerations while meeting all application objectives. Continue reading
In a previous blog, I shared with you my excitement about the power of the adjoint solver technology for shape optimization from ANSYS. Since then I have been working tirelessly to make this remarkable technology even more capable. CFD engineers can now understand their designs better and can perform smart shape optimization, all for larger problems with richer physics thanks to the adjoint solver technology.
My numerous interactions with people from all around the world confirmed what I knew: the adjoint solver technology is powerful and has the capability to enable a sea-change in the fluid design process. The technology is already having a positive disruptive impact on design, especially among the early adopters. Products are being improved. Established concepts about some types of fluid systems and how they function have been overturned. New manufacturing procedures are being attempted in order to produce the shapes indicated by the adjoint.
I am sure many of you have heard of clean diesel. And, probably asked yourself what is it and how is it different from regular diesel. Are we refining fuel more — why is it called clean? That is just one part of it. Clean diesel is really a three-part system. One part is cleaner fuel, the second part is improvement in the combustion — more advanced engines— and the third part is new technologies that control emission and exhaust gasses. There are different emission control technologies that can further reduce emission from the diesel engines, but most dominant are diesel particulate filters (DPF), exhaust gas recirculation (EGR), selective catalytic reduction (SCR) and diesel oxidation catalysts (DOC). Continue reading
Another release of ANSYS fluid dynamics products, another round of great new capabilities. While some may say that a picture is worth a thousand words, I invite you to view the video below for more than 16,000 words on 16 Cool New Features of ANSYS Fluid Dynamics 16.0. And they are all winners — so this is not a ranking, just a list! Continue reading