Saket Mishra’s Post

CFD can help engineers improve the rocket injector design process by providing analyses on vital performance and thermal parameters. In this #simulationfriday, we simulated the Penn State University (PSU) single-element hydrogen-oxygen research combustor, which operates under conditions representative of the combustion chamber in a liquid rocket engine. Accurately tracking hydrogen diffusion in turbulent and supersonic conditions can be difficult due to hydrogen’s unique gaseous properties. Another simulation challenge is the highly sensitive grid resolution at the tip of the rocket and the flame front. CONVERGE’s large eddy simulation (LES) turbulence modeling accurately captured hydrogen diffusion in the turbulent environment, while Adaptive Mesh Refinement (AMR) efficiently handled grid resolution in sensitive areas to maximize coverage without using too many cells. LES and AMR are only a few of the innovative features CONVERGE provides to enhance CFD simulations and improve user experience. Explore the full potential of CONVERGE at our upcoming online conference on October 29–31. At the 2024 CONVERGE CFD conference, or CFD24, hundreds of participants from around the world will gather to learn how prominent engineers in the field are using state-of-the-art CFD software to transform the future of technology. Register now to tune in to three insightful days, featuring keynote addresses, technical presentations, and an inventive workshop taught by an expert Convergent Science engineer. https://lnkd.in/gFgcTyAz #CFD24 #CONVERGEcfd

In 2023, we announced a new partnership with Red Bull Powertrains. The power unit manufacturer is using CONVERGE to develop a new racing engine that will debut in 2026 and run on 100% sustainable fuel to meet updated F1 regulations. In today’s #ThrowbackThursday press release, we discuss how @Red Bull Ford Powertrains is applying CONVERGE to optimize fuel spray and combustion chamber parameters, aiming to create a winning power unit right out of the gate. CONVERGE’s autonomous meshing allows Red Bull Ford Powertrains to more quickly test different designs, and CONVERGE’s detailed combustion modeling helps ensure accurate predictions of performance. Read more about this exciting partnership in our press release! https://lnkd.in/gNbPBBAX

Across many industries and applications, CFD is helping engineers model complex devices to improve their designs and increase their efficiency, as highlighted in today’s #SimulationFriday video. The 2024 CONVERGE CFD Conference will showcase how companies and universities around the world are using CONVERGE to make critical advances in technologies including batteries, electric motors, alternative fuels, IC engines, rotating detonation engines, and much more. You’ll hear from distinguished speakers from Ferrari, Daimler Truck AG, Volvo Group Trucks Technology, Toyota North America, UL Research Institutes, Intelligent Energy, IFP Energies nouvelles, and Argonne National Laboratory, among many others. The conference will take place online from October 29–31. Register for free today! https://lnkd.in/gFgcTyAz Interested in learning how you can incorporate CONVERGE into your own research? We recently held our webinar on, “Empowering Innovation: Illuminating the Power of CONVERGE in Academic Research,” Here is the link in case you missed it - https://lnkd.in/dtaxtgcg #CFD24 #CONVERGEcfd

Don’t miss our webinar on October 9, where we will feature the CONVERGE Academic and Explore Programs—your gateway to powerful CFD software. The CONVERGE Academic Program empowers academia and promotes the advancement of science and technology by providing exclusive license deals for CONVERGE, our industry-leading software, along with free support, training, and other resources. We’ll also highlight the CONVERGE Explore Program, a professional development initiative providing participants with a cost-free entry point to engage with an innovative CFD solver. These limited licenses are a stepping stone for early professionals, encouraging them to push engineering boundaries. What’s more, you’ll have the opportunity to hear from a participating professor on his experience with CONVERGE and how it has strengthened his team. Join the webinar to learn how to kickstart your CONVERGE journey—register today and dive into a whole new world of simulation! https://lnkd.in/dRBxq8bD

In today’s #SimulationFriday, we used CONVERGE’s Under-Relaxation Steady (URS) solver, new in CONVERGE 4, to simulate a centrifugal pump. CFD simulations of centrifugal pumps allow engineers to predict performance, analyze flow patterns, and optimize designs, helping to improve device efficiency and reduce development costs. We used a multiple reference frame (MRF) approach to reduce the computational cost of simulating the moving geometry, and we employed CONVERGE’s Adaptive Mesh Refinement to dynamically add mesh resolution when and where it’s needed to capture important flow phenomena. Coupling the URS solver with an MRF approach produces accurate results at a significantly reduced computational cost. Find out how you can use CONVERGE for your own research at our webinar “Empowering Innovation: Illuminating the Power of CONVERGE in Academic Research” on October 9 at 10:30am CDT. Register for free today! https://lnkd.in/dRBxq8bD

Designing efficient compressors comes with its own set of challenges, as experimental measurements are limited by high costs, lengthy testing times, and a lack of a reliable method for assessing the compressor’s internal flow field. Daikin Industries, Ltd., a leading provider of high-quality air conditioning systems, recognized CFD as a viable solution to address these issues. In today’s #ThrowbackThursday blog post, we discuss how Daikin realized their need for a CFD solver that could efficiently handle the complex physics of compressors and how they came to choose CONVERGE to model the internal dynamics of their swing compressors. Thanks to CONVERGE’s autonomous meshing, Daikin engineers were able to save over two weeks of simulation time, allowing them to quickly iterate through several designs and efficiently test various prototypes. In addition, CONVERGE’s fluid-structure interaction modeling and ability to handle complex moving geometries significantly simplified Daikin’s simulation process while preserving solution accuracy. The blog also covers a validation study demonstrating how CONVERGE can accurately predict crucial parameters such as pressure and valve lift. Read the full blog for more details! https://lnkd.in/gSPFNrxU Can’t get enough of CONVERGE’s innovative tools for compressor simulations? Attend our complimentary training on pumps and compressors at our Linz office on October 15. That’s not all! We’re also offering courses for modeling internal combustion engines, hydrogen combustion, battery systems, electric motors, engine aftertreatment system, and personalized case setup at our Europe location from October 14–17. To see the full schedule and register, visit our website! https://lnkd.in/gXeAxWs

Use CONVERGE & never make a mesh again. For more information, please feel free to DM! #CONVERGEcfd

If a cell in a battery pack enters thermal runaway, there is a risk that flammable gases vented from the faulty cell could ignite and combust. In this #SimulationFriday, a battery cell (shown in red) enters thermal runaway and begins to vent out gas products. A short-circuit spark near the faulty cell ignites the gases. Because there is limited oxygen available within the battery pack, most of the combustion occurs outside of the pack. We used CONVERGE’s SAGE detailed chemistry solver to model the combustion of the vent gases. CONVERGE’s autonomous meshing automatically creates a high-quality mesh for the complex battery pack geometry, and Adaptive Mesh Refinement helps to efficiently capture the flow solution. Mitigating thermal runaway and thermal propagation is key to preventing battery fires in electric vehicles. Find out how IAV GmbH and Convergent Science are developing and validating a physics-based simulation approach to predict thermal propagation in our joint webinar held on 24 September! Here is the link - https://lnkd.in/dg8nrZdt

As industries search for cleaner and more sustainable alternatives to traditional fossil fuels, hydrogen emerges as a popular choice due to its abundance, versatility, and status as a carbon-free energy carrier. However, efficiently using hydrogen as a fuel for compression ignition engines comes with a number of challenges, including hardware restrictions like pressure limitations and orifice size constraints, as well as hydrogen’s high self-ignition temperature. This week’s hashtag #ThrowbackThursday post features Achates Power Engineer Ming Huo’s presentation describing a CFD study of an opposed piston two-stroke (OP2S) engine using hydrogen fuel. Compared to a standard single-cylinder diesel engine, an OP2S engine has higher power density, fewer engine parts, less heat loss, and more flexible control of critical temperature parameters. In his presentation from the 2022 CONVERGE User Conference in Madison, Wisconsin, Dr. Huo describes how they used CONVERGE to study an OP2S hydrogen compression ignition engine. Non-premixed hydrogen compression ignition gives engineers control over trapped temperature due to hydrogen’s elevated injection temperature. Additionally, side-mounted injectors can help to direct the diffusive flames away from the wall, allowing more space for turbulent jet mixing. Ultimately, Achates Power’s CONVERGE study demonstrated the efficiency of a hydrogen-powered OP2S engine. Check out their presentation for more details! https://lnkd.in/gd4iAdrh Learn more about CONVERGE’s modeling capabilities for two-stroke engines at the Direct Injection 2-Stroke Engines International Workshop and Conference on September 26–27 in Austria. Visit booth #4 to chat with our expert engineers and be sure to sit in on CS Senior Research Engineer Luca Ferretti’s presentation on ammonia-fuelled two-stroke piston engines at 14:45 CEST on September 26. Later that day, listen to CS Support Group Lead Matteo D'Elia's panel discussion on future trends toward zero emissions and carbon-neutral operations at 17:00. https://lnkd.in/gK_kkEqH

Attention CFD folks - On September 24, explore how CFD is being leveraged to combat thermal runaway propagation in electric vehicle battery packs at our joint webinar with IAV GmbH. Presenters Lorenz Martin von Römer from IAV GmbH and Kislaya Srivastava from Convergent Science will dive into the process of developing and validating a numerical approach in CONVERGE to study thermal propagation and various mitigation strategies. These studies are crucial for maximizing the safety of newly developed electrochemical energy storage systems and reducing the risk of recalls of vehicles in series production. Sign up for the webinar to learn more! https://lnkd.in/d8cEVPwU