Convergent Science’s Post

I love CFD! In the quest for decarbonizing transportation, gas turbine manufacturers are delving into the realm of hydrogen and natural gas blends for powering their designs. This transition, aimed at reducing carbon emissions, presents challenges like flame flashback in hydrogen-fueled combustors. Engineers utilize Computational Fluid Dynamics (CFD) to analyze fuel blends, determining the optimal mix to mitigate flame flashback risks. A recent study investigated flame flashback in a premixed hydrogen/methane-fuel swirl burner using CONVERGE. Leveraging the SAGE detailed chemistry solver and LES, the simulation accurately portrayed turbulent hydrogen/methane combustion dynamics. Adaptive Mesh Refinement facilitated the efficient modeling of the burner's flame behavior. #cfd #convergecfd #hydrogen

🌐 In this webinar, our experts took a deep dive into the transformative role of engineering simulation within the hydrogen energy sector. They showcased the power of SimScale's simulation platform through practical case studies, demonstrating how to: ✔️ Get started with SimScale. ✔️ Import hydrogen’s material properties from the NIST database. ✔️ Set up and simulate a hydrogen fuel cell to evaluate the thermal and structural performance of its cooling plates. ✔️ Set up and simulate the transient refueling process of a hydrogen storage tank. ✔️ Simulate multiple design scenarios in parallel. ✔️ Post-process the results and calculate safety factors, refueling time, etc. Click here to watch: https://hubs.la/Q02mvmf_0 #CFD #finiteelementanalysis #simulation #hydrogen

This #ThrowbackThursday, we’re spotlighting a presentation from the 2023 CONVERGE CFD Conference by olivier laget from IFP Energies nouvelles, “Hydrogen Internal Combustion Engine Developments: Physical Phenomena and Related Challenges.” While battery electric vehicles have gained popularity in recent years, current battery technology struggles to meet the demands of high-power applications. Hydrogen has a high energy density, and hydrogen engines produce very low levels of CO2 during operation, making them an attractive alternative to diesel engines. In this presentation, Olivier showcases a study using CONVERGE to simulate a medium- to heavy-duty hydrogen direct-injection engine. The aims of the study were to (1) achieve the right in-cylinder aerodynamics for H2 mixing, (2) find an H2 injection strategy to enhance the gas-gas mixing, and (3) mitigate autoignition. Check out Olivier’s presentation to see the results! https://lnkd.in/dd6B88_X If you want to learn how to use CONVERGE for your own ICE simulations, please feel free to reach.

In our latest blog post, find out how CFD can help you overcome the challenges of designing safe and reliable hydrogen storage technology. We highlight a case study in which we used CONVERGE to study the filling process of a hydrogen storage tank, validating our results against data from the HyTransfer project. With CONVERGE’s autonomous meshing and conjugate heat transfer modeling, we’re able to accurately capture the hydrogen jet dynamics and the temperature profiles within the tank. Read more on our blog! https://lnkd.in/grWH7GVh #hydrogen #hydrogenstorage #greenhydrogen #hydrogenenergy

Hydrogen stands out as a crucial element in the shift towards sustainable energy and the decarbonization efforts. This webinar will delve into how simulation plays a pivotal role in establishing a reliable and robust hydrogen supply chain, with a specific emphasis on hydrogen handling. Join May 15th at 2 PM EST for an in-depth discussion on modeling and simulation for hydrogen technologies. Register 👉 http://go.3ds.com/Vpy #MODSIM #Simulation

As the hydrogen economy gains momentum, prioritizing safety is crucial. Computational Fluid Dynamics (CFD) plays a key role in minimizing the risks associated with unwanted flame propagation and explosions. In a recent CONVERGE simulation, a six-meter-long tube filled with a hydrogen and air mixture, with a 35% H2 volume fraction, underwent a fascinating transformation from deflagration to detonation. The simulation showcases intricate structures like shocks and Kelvin-Helmholtz type formations, evident in the temperature contours (middle view). Impressive work by Shuaishuai Liu, shedding light on the critical application of CFD in enhancing safety within the hydrogen industry. (Simulations are based on experiments from the paper: "Experimental study on combustion and explosion characteristics of hydrogen-air premixed gas in rectangular channels with large aspect ratio," Han et al., International Journal of Hydrogen Energy, 57, 2024.) #cfd #convergecfd #hydrogen

⏰ Only one week left until our live webinar where we’ll unveil advanced applications in designing and optimizing critical components for hydrogen production, storage, and transport. 📢 Calling all professionals in the engineering and energy sectors! Dive into the cutting-edge world of engineering simulation and explore how it elevates the burgeoning field of hydrogen energy infrastructure. Join us to uncover advanced applications in designing and optimizing critical components for hydrogen production, storage, and transport. Gain valuable insights into computational fluid dynamics (CFD), finite element analysis (FEA), and thermal management techniques applied in hydrogen systems. 👉 Reserve your spot now: https://hubs.la/Q02jNWlt0 #CFD #finiteelementanalysis #simulation #webinar

Hydrogen is an attractive solution for net-zero initiatives. Hydrogen fuel possesses higher flame speed, lower ignition energy requirements, and wider flammability limit compared to typical hydrocarbons. While these characteristics improve efficiency and stability, they also produce key challenges such as flashback and other safety-related issues. Korea Advanced Institute of Science and Technology, Daejeon, and Ansys are developing computational fluid dynamics methods and best practices for predicting flame structure for hydrogen-methane blended flames using large eddy simulations. Click the link below to learn more about the research being conducted at KAIST combustion dynamics and diagnostics laboratory.

Understanding lean blow-off (LBO) limits for different types of fuels in gas turbine combustors is particularly important as the aviation industry investigates sustainable fuel options. In this #SimulationFriday video, we used CONVERGE’s LES turbulence modeling and detailed chemistry solver to predict LBO for two fuels: A-2 (a conventional Jet-A fuel) and C-1 (an alternative jet fuel). The combustor geometry preserved all flow passages and included the dome, liners, dilution jets, and effusion cooling holes. CONVERGE’s autonomous meshing easily handles the complex geometry and significantly reduces the time it takes to set up gas turbine simulations. Learn more about CONVERGE’s combustor modeling capabilities at the Supercritical CO2 Power Cycles Symposium next week in San Antonio, Texas! Check out our poster at the poster session, and chat with our engineers about how CONVERGE can help you investigate sCO2 power cycle technology. https://lnkd.in/dgegVjTG

Hydrogen is a focus area for many Engineers working on clean tech and the ongoing energy transition to meet our decarbonization goals. Join us for our Webinar Series on Hydrogen Adoption, starting on the 20th of March : Accelerate Hydrogen Adoption : Part 1 - Overview https://lnkd.in/eQHT7sHT Accelerate Hydrogen Adoption : Part 2 - Production https://lnkd.in/e9cNuEbz Accelerate Hydrogen Adoption : Part 3 - Storage / Transport https://lnkd.in/ez58PgNf Accelerate Hydrogen Adoption : Part 4 - Utilization https://lnkd.in/eAmFiwxN Optimization of the combustion process is a balancing act of three crucial metrics: efficiency, emission, and stability. While achieving a higher temperature during a combustion process is better from the efficiency and stability point of view, it poses challenges for emissions — mainly nitric oxide (NOx) — and metal protection. The Role of Simulation in Understanding Hydrogen Combustion. Computation fluid dynamics (CFD) simulations are an integral part of the ongoing research on pure hydrogen or hydrogen-blended fuel combustion to accelerate the adoption of hydrogen as a cleaner fuel. #Hydrogen #ANSYS #EDRMedeso