Abhishek Sharma’s Post

"Excited to share my recent project on modeling and simulating a bubbling fluidized bed reactor" I delved into the complex dynamics of gas-solid interactions within this reactor, gaining valuable insights into its performance and optimization. This project allowed me to apply my skills in Modelling,research and CFD techniques. Key findings include visualization of hydrodynamics and heat transfer in Fluidized bed reactor and to can make sure that there is fairly turbulent flow and investigate bubbling formation. This project open new horizons about multiphase flow and how can we model it obtaining interaction effects between phases and new models that can handle this phenomena. Tip : make video on 0.5X 😅 #CFD #ANSYS #FluidizedBedReactor #ChemicalEngineering #Simulation #Modeling #MechanicalEngineering

🚀 Just Released: Explore the Latest Findings from #CES! Section Category: Engineering Science CFD Modelling of Close-Coupled Gas Atomisation Process by Employing the Euler-Lagrange Approach to Understand Melt Flow Instabilities Jo Samuel J., Andrew M. Mullis, Duncan J. Borman Read now: https://lnkd.in/dyJfE7iB #CloseCoupledGasAtomisation #ComputationalFluidDynamics #Compressibleflow #DiscretePhaseModel #EulerLagrangeapproach #UserDefinedFunction

Computational Fluid Dynamics -> Conjugate Heat Transfer  -> Multiphysics Simulation Capabilities -> Cost Effective & Quick Turn Around Know more: https://lnkd.in/gBGyMrDS Contact us for more info: engg@apaengineering.com #computationalfluiddynamics #cfdsimulation #fluiddynamicsengineering #engineeringsolutions #advancedsimulations #cfdmodeling #aerospaceengineering #thermalanalysis #automotivesimulations

WEBINAR MODELING COMBUSTION IN LIQUID ROCKET ENGINES June 19, 2024 10:30 AM – 11:30 AM CDT PRESENTED BY: David H. Rowinski, Principal Engineer Convergent Science This webinar will demonstrate how to model liquid rocket combustors with CONVERGE CFD software. We will present several single element combustor test cases spanning a range of conditions from subcritical to supercritical with a variety of common fuel/oxidant combinations, including liquid oxygen with hydrogen, methane, and RP-1. We will discuss the various equation of state options available in CONVERGE as well as the use of detailed chemistry to model the chemical kinetics. Furthermore, we will cover the case setup for a multi-element injector rig, highlighting the portions of the setup that allow us to capture the wide range of phase space accessed in this model. We will demonstrate the effect of the equation of state options and combustion models on the prediction of pressure oscillations in this combustor. https://lnkd.in/d_5S84nK #cfd #PhysicsResearch #Aviation #mechanicalengineering #mechanical #Aeroengineering #engineering  #science #Aerodynamics #DeepCFD #NavierStockes #Mathematical #MathematicalEngineering #GPU #RocketCombustors #FuelOxidant

🧪Experimental Flow vs CFD Simulations in a Clean Air System STZ EURO conducted a fascinating study as part of a thesis project. The goal was to investigate the accuracy and correlation between experimentally determined flow conditions and computational fluid dynamics (CFD) simulations within a clean-air system. They developed a specialized experimental setup to analyze and compare the two approaches. This comprehensive study explored the intricate flow patterns, vortex formations, and air circulation dynamics within the clean air system. Visualization techniques, such as smoke wands, allowed for the capture and analysis of complex flow behaviors. The findings from this research project have significant implications for optimizing clean air system designs, improving energy efficiency, and ensuring the highest levels of cleanliness and contamination control in critical environments. #CleanAirSystem #Experiment #NumericalSimulation #CFD #FluidSimulation #Experiment #Measurements #FluidMechanics #Cleanroom #FlowVisualization #AirVortices #Vortex #Flow #Efficiency #Labortory

In today’s #SimulationFriday video, courtesy of Dr. Sinan Demir and Dr. Pinaki Pal from Argonne National Laboratory, CONVERGE was used to perform large eddy simulations (LES) of methane-oxygen combustion in a full-scale rotating detonation rocket engine (RDRE). Fuel and air enter the bottom of the RDRE chamber through separate discrete injectors, initiating multiple reaction waves. The video also shows the unrolled mid-plane of the RDRE chamber, which displays the quasi-steady-state behavior with sustained propagation of three quasi-detonation waves. CONVERGE’s SAGE detailed chemistry solver accurately captured the complex chemical reactions occurring during detonation in addition to the combustion processes inside the engine. Our Adaptive Mesh Refinement accommodates the complex movement of the combustor for computationally efficient CFD simulations of RDREs. Interested in learning more about how CONVERGE can simulate rotating detonation engines (RDEs)? Attend our May 15 webinar! https://lnkd.in/dyFMJT4F #CONVERGECFD #CFD #fluiddynamics

In today’s #SimulationFriday video, courtesy of Dr. Sinan Demir and Dr. Pinaki Pal from Argonne National Laboratory, CONVERGE was used to perform large eddy simulations (LES) of methane-oxygen combustion in a full-scale rotating detonation rocket engine (RDRE). Fuel and air enter the bottom of the RDRE chamber through separate discrete injectors, initiating multiple reaction waves. The video also shows the unrolled mid-plane of the RDRE chamber, which displays the quasi-steady-state behavior with sustained propagation of three quasi-detonation waves. CONVERGE’s SAGE detailed chemistry solver accurately captured the complex chemical reactions occurring during detonation in addition to the combustion processes inside the engine. Our Adaptive Mesh Refinement accommodates the complex movement of the combustor for computationally efficient CFD simulations of RDREs. Interested in learning more about how CONVERGE can simulate rotating detonation engines (RDEs)? Attend our May 15 webinar! https://lnkd.in/dyFMJT4F #CONVERGECFD #CFD #fluiddynamics

🦃🍗If you did this CFD simulation, what would be the definition of your success metric 😂 are you measuring Fourier number and Biot number!? 😂 “In the study of heat conduction, the Fourier number is the ratio of time, t, to a characteristic time scale for heat diffusion, t_diff. This dimensionless group is named in honor of J.B.J. Fourier, who formulated the modern understanding of heat conduction. The time scale for diffusion characterizes the time needed for heat to diffuse over a distance, L. For a medium with thermal diffusivity, alpha, this time scale is L^2/alpha, so that the Fourier number is t/td = alpha t / (L^2). The Fourier number is often denoted as Fo or Fo_L” Happy thanksgiving #cfd #thermodynamics #heattransfer #engineering #mechanicalengineering #meme

⚡Time Dependent CFD Simulation: Vortex Shedding⚡ What is Vortex shedding in the first place? Vortex shedding is a phenomenon when the wind blows across a structural member, vortices are shed alternately from one side to the other, and where alternating low-pressure zones are generated on the downwind side of the structure, giving rise to a fluctuating force. This phenomenon is of major importance in engineering design because the alternate formation and shedding of vortices also create alternating forces, which occur more frequently as the velocity of the flow increases. Source: https://bit.ly/3nRj1Jr 📥 Latest newsletter: https://bit.ly/41N6Ixq #engineeredmind #science #technology #engineering #cfd #simulation

I love CFD! Ignition of liquid rocket engines is a challenging problem. One of several ignition methods is a torch ignitor, where hot combustion products are injected into a stream of reactants. Failure to ignite or flashback can occur when the flow rates are too low, and if flow is injected too late, pressure surges or detonation waves can destroy a combustor. Here we model torch ignition of a subcritical liquid-oxygen single element liquid rocket combustor with CONVERGE CFD. Detailed chemistry, large eddy simulation, and adaptive mesh refinement are used to efficiently model this complex process. How cool is this? Thanks to David Rowinski for providing this case. 🚀 🔥 #cfd #convergecfd