Siemens Simcenter synergies!
Fluid Structure interaction of a planing hull in waves using Simcenter STAR-CCM+ and Simcenter 3D. Simcenter STAR-CCM+ is used to model the dynamic behavior of the vessel in waves. The impact of the waves result in high pressure forces. These pressure forces are applied on the structural model to investigate the structural safety of the vessel.

@cfdanalysis.ir
#cfd #marine #simulation #cae #siemens

✈️ Aerospace aerodynamics CFD will soon become faster than ever. With the coupled solver becoming GPU-native
in Simcenter STAR-CCM+ 2306 you can run faster, more cost and energy-efficient CFD for aerospace and many more applications. Fasten your seat belts because you are soon ready to take off.

@cfdanalysis.ir


#Simcenter #CFD #AerospaceEngineering

Simulation and experiment of pressure-swirl injector at 1 bar pressure difference.
The simulation was able to correctly predict the shape of the exit spray compared to the experimental work.
This type of spray is called onion-shaped spray, which is created when the pressure is very low.
#CFD
The simulation was also carried out using a volume of fluid model considering two-dimensional axisymmetric swirl conditions.
#EXPERIMENT
Fast imaging was employed based on the backlighting technique to experimentally investigate the behavior of the exit liquid sheet.
High-speed PCO camera (to capture images using an exposure time of 9 μs and Nikon macro lens (100 mm focal length)).
@cfdanalysis.ir
#Pressure#swirl#atomizer #VOF #PCO camera #Backlighting

I love CFD! his propeller surface piercing simulation, showing the formation of water
drops, is just awesome. (Here the mesh is shown on the mid-plane and the iso-surface represents a
void-fraction of 0.5.)
@cfdanalysis.ir


#Marine_cfd #cfd #Propeller#ship_propeller

⁠🌬️ Wind Turbine Wakes 💨

When the wind encounters a wind turbine, it undergoes a complex interaction. As the blades rotate, they extract energy from the wind, causing it to slow down and change direction. This alteration in wind flow creates a wake region behind the turbine. The wake consists of two main components: the near-wake and the far-wake. The near-wake is closer to the turbine and is characterized by turbulent and chaotic airflow. This region experiences significant changes in wind speed and direction, which can affect the performance of downstream turbines in a wind
farm. 🌀
Meanwhile, the far-wake extends further downwind, and its impact is less pronounced. However, it can still lead to decreased power output for turbines positioned in its path. Understanding and managing wind turbine wakes is crucial for optimizing energy production in wind farms. 🌍💡
Researchers are constantly studying wake effects to improve wind farm designs
and minimize wake losses. By carefully positioning turbines, adjusting their spacing, and implementing advanced control strategies, we can mitigate the negative impact of wakes. This helps maximize the overall energy output of a wind farm and enhance its efficiency. ⚙️🔋
Wind turbine wakes represent a fascinating interplay between renewable energy generation and fluid dynamics.💨💪


@cfdanalysis.ir



#WindPower #WindTurbineWakes #windturbines #windenergy #CFD #fluiddynamics

Simulation of an entire ship hull.

Slamming is a term that is often used in a maritime context to describe the sudden impact of the ship hull on a water surface.

@cfdanalysis.ir

#mechanical #mechanicalengineering #aerospace #automotive #cfd

⁠Siemens Simcenter STAR-CCM+!

Simulation of a mixer used in battery cell preproduction. 2% dense liquid is poured into 98% less dense. This simulation of a mixer was used to optimize
mixing process of battery electrode slurry. A dense black liquid is poured into a clear liquid, stirred thoroughly and released after reaching an equilibrium.

Simcenter STAR-CCM+ enables process engineers to ensure constant substance distribution in minimum mixing time, optimizing the process before setting them up. The visualisation shows the volume fraction of the dense substance in the whole solution. The final state would be all liquid yellow, representing a constant volume fraction of 2% dense liquid.

Eulerian Multiphase flow, VoF, Adaptive Mesh Refinement.

@cfdanalysis.ir


#cae #cfd #simulation #batteries #siemens

Check out this extended animation showing the flow of 5
micron sized evaporating droplets flowing through the nasal airways during a
respiration cycle. The air flow information is calculated using cfd

@cfdanalysis.ir

#simulation #particles
#simulationsoftware #health #healthcare #patientcare #drugdelivery #inhaler #masteringparticles

⁠CFD simulation of me, casually drifting in my business jet on my way back home from Paris Air Show🛫😂
What is this simulation about?
🌪 it is a Wall-Modelled Large Eddy Simulation (WLMES), one of the greatest turbulence fidelities commercial solvers like Simcenter STAR-CCM+ offer.

🕸 130 million cells, polyhedral mesh.

👬
coupled flow solver...

🖥 ... running on GPUs. It took 24x NVIDIA A100 6 hours runtime to simulate

⏲ ... 1s physical time.

✈️ Flight parameters are on the edge: I am no aircraft expert or hobby pilot, but this jet is literally drifting through the air,
partly stalling, traveling a bit sideways.
🤷‍♂️
If you know the correct term for this vague description please let me know!

Do you think it is appropriate to display it like that? Did you get the impression that this jet is burning and falling from the sky? 😱
The visualization shows turbulence, meaning an isosurface Q-Criterion = 500 /s colored in Mach.

🌈
The colorbar is even matching the background colors, I call it MrBlueSky 😁

@cfdanalysis.ir

#jetset #simcenter #simulation #PAS23 #cfd #gpu

modelling-anchored-boat-contacts-in-rough-seas



@cfdanalysis.ir

#jetset
#simcenter
#simulation
#PAS23
#cfd
#gpu

With #Simcenter STAR-CCM+ you can analyze a complex combustion system, in this example a pressurized annular combustion chamber, and add hydrogen to the fuel to reduce the CO2 emissions generated. This system can be analyzed using a high-fidelity LES model combined with the Flamelet Generated Manifold combustion model to accurately predict thermoacoustic behavior. And even better, all this can be done natively on GPUs to drastically accelerate the rendering time.
@cfdanalysis.ir

#starccm #cfd #combustion #burner #siemens

In this study, we conducted venting experiments in a 1m3 silo to validate our model based on CFD. Results are in excellent agreement with experiments, marking a significant milestone in establishing an effective modeling strategy for simulating dust explosions and determining optimal vent sizes to ensure industrial safety.



@cfdanalysis.ir


#CFD #dustexplosions #biomass #energy

⁠#Siemens Simcenter STAR-CCM+
✈️
User-defined Lagrangian break-up modeling will give you more flexibility to model complex break-up scenarios like in this afterburner of a jet engine Useful in many applications, for others, classical secondary breakup models (like SSD, TAB, Reitz-Diwakar, KHRT) may not always provide acceptable accuracy for the size distribution of droplets. While a high-fidelity hybrid multiphase approach offers an accurate alternative it is not always feasible due to simulation effort constraints. In Simcenter STAR-CCM+ 2210, we therefore introduce the user-defined breakup
model for Lagrangian multiphase to allow you to implement any existing breakup model in literature with maximum flexibility. The implemented solution allows you to specify an arbitrary number of the breakup outcomes and then input the breakup map using field function or table input method. The breakup map specifies the conditions for each breakup outcome. For simulating combustors in gas turbines or breakup in sprays generated by pre-filming air blast atomizers used in aero-engines, it is difficult to get sufficiently accurate predictions with standard break-up models. The new user coding option offers you full flexibility to implement any application-tailored model like for example the Madabhushi breakup for fuel jets in cross-flow.


@cfdanalysis.ir



#CFD
#dustexplosions
#biomass
#energy

#cae #simulation #cfd #engineering

An engine expected to consume substantially less fuel when
compared with traditional ducted turbofans? Let us introduce you to open rotor
engines. ✈️
This simulation demonstrates the capability of CFD solver to predict the
aerodynamics and the aeroacoustics of an open rotor. These capabilities are
instrumental for engine and aircraft manufacturers to make essential design
decisions to ensure functionality. One of the major noise sources in open
rotors is the front-aft rotor interaction: the wakes coming from front blade
trailing edges are conveyed downstream and impact aft blade leading edges.
Several strategies exist to minimize this interaction noise: changing the
number of blades per rotor, cropping the aft blade, re-twisting blades to shift
vertical structures towards less sensitive regions and masking the engines
thanks to the tail planes or wings. Manufacturers need high-fidelity
simulations like the one shown here to assess the tradeoff of each design
decision.
@cfdanalysis.ir

#WindPower
#WindTurbineWakes
#windturbines
#windenergy
#CFD
#fluiddynamic

⁠CFD of a mixed combustion 🔥

This simulation predicts the behavior of in-cylinder combustion of mixed gasses: classical fuel plus hydrogen. Even if you are not a petrol head, this seems interesting. Currently, a lot of research is going into alternative fuel supplies to de-carbonize transport. And we are not exactly talking about cars, trucks or trains. We need also to consider ships, which heavily rely on diesel cylinder engines nowadays. And to be honest: I, personally, do not yet see an opportunity to replace this propulsion with tons of batteries in the near future. But what if we cut carbon dioxide emissions by 50%? That is one step in the right direction. But for now, let's enjoy some

🎩 in-cylinder CFD, built in the Simcenter STAR-CCM+ in-cylinder tool

🕸 some cool adaptive mesh.

🔥 fancy flame fronts rushing through!

@cfdanalysis.ir

#simcenter #combustion #simulation #hydrogen #cfd

This summer, while strolling along a dock..... You will be able to dream of beautiful post-treatments and the use of adaptive time-step for free surfaces:) and all thanks to #Simcenter Star-CCM+! Have a great summer! 🏄‍♂️ 🏊‍♂️
⛵️🚤🐠🐳
@cfdanalysis.ir

#starccm #cfd #summerholiday #siemens

Dorsoventral undulation, a propulsion technique widely employed by aquatic mammals, plays a significant role in their swimming abilities. Among these skilled swimmers, dolphins are particularly renowned for their high-efficiency cruising capabilities. In fact, the common dolphin (Delphinus delphis) can reach speed of up to 37mph.⛵️🚤🐠🐳
@cfdanalysis.ir

#starccm #cfd #summerholiday
#siemens #bioinspiration
#fluiddynamics

Embrace the Heat with Enhanced Design Confidence!
In the spirit of the sunny season, we bring you an exclusive revival of our most favorable blog posts. When it comes to creating products, we understand that striking a balance between safety and innovation is paramount. That's why we're excited to highlight a solution that eliminates uncertainties, allowing you to unleash your creativity while ensuring optimal safety standards.

@cfdanalysis.ir

#marine #starccm #blogsummerspecial

#Siemens Simcenter STAR-CCM+.
🌊
Water Pump Design
Multiphase simulation to get insight into cavitation behavior of a water pump!

@cfdanalysis.ir


#CAE #CFD #Simulation