Predictive Design with CFD
Internal flows and air treatment ducts can be analyzed with computation fluid dynamics simulation, flow simulations or CFD calculations. For turbulent models, k-epsilon, k-omega or realizable RANS models can bring the simulation to a good result.
- Flow with density variations.
- Two phase flow such as bubbly flow.
- Sludge particles in water or slurries. (Particle flow)
- Laminar flow cabinets. (Medical applications)
Design Reversed Vortex flow
A reversed vortex flow can be used in plasma reactor tubes to ignite plasma induced chemical reactions. The complete tube is used to maintain a gas reaction and the velocity of the gas and chemical species are high. At the top of the tube the gas can leave the system. The particles while spiral through the reversed vortex system in order to produce a good mixing of the species during reaction when the temperature is high (1800 – 3000 K).
Vertical Axis Water Turbine
Simulations have been carried out on a Vertical Axis Water Turbine (VAWT) for an application in Antwerp. With this turbine, energy can be generated from tidal currents, for example, with the rotating blades in the flow via a dynamo. This Dutch development is now being further developed and one of the new applications is to extract energy from flowing rivers in countries where the electricity network is very thin. With this VAWT you can generate electricity 24 hours a day, as long as the water flows.
Laminar Air Flow (LAF) Cabinet
The importancy of predicting Laminar Air Flow (LAF flow) in cleanrooms and hospital environment is very high. Especially today with the Corona virus around is predicting flow patterns very important. With CFD it is also possible to model and predict the deposition of tiny particles or droplets which contain viruses in the airflow, and areas where the deposition is highly prevented. In this picture a LAF-flow cabinet is shown. Due to strict specifications one should design the cabinet in such a way that all clean air flows nicely without turbulence to the room. Downflow cabinets are also a very important application in the laboratory environment.
Design Water Valve, Loss Factor
De interne stroming komt typisch voor in buizen. Hiernaast ziet u een afbeelding van de inwendige stroming van water in een brandkraan. Als de inwendige wrijving van de kraan minimaal is, met behoud van de externe dimensies kan de inwendige wrijving worden verlaagd en daardoor kan met een zelfde druk meer kubieke meters water uit het bluswater systeem komen.
ITER, Design Cryo Pump.
DeMaCo has built components for a fusion reactor in France. Based in North Holland they have decades of experience in cryogenic applications. Therefore DeMaCo was contracted to build cooling parts for the ITER (International Thermonuclear Experimental Reactor) project. After ignition of the fusion plasma, light components form. These have to be pumped out of the reactor, which is done by a crygenic pump. This pump functions at very low temperatures, and the light chemical components will condensate on the cold surfaces of the pump. The pump closes after condensation and is heated to evaporate the components which are then exhausted.
Design Outgassing Reduction!
Convective flow is maintained by density differences caused by heat. For example, the weather is dominated by convection, the air heated by the sun. The industry uses the idea that cold air is heavier, and with this knowledge, refrigerated display cases are designed for food products, for example. Also shown here is an air blanket to limit evaporation from a galvanic bath in industry.
Design Cold Water Boiler
Cold water boiler? This can be very useful for various applications. Consider chilled soft drinks served on tap if the space is too small for large kegs. Consider household use and mobile applications.
Computer System for Predictive Design
Physixfactor simulates on a powerful workstation with EPYC processors and 32 cores,
1.5 Tb RAM memory that works with the most modern solvers from COMSOL. Our corporate philosophy is built around a few important core values on which you can judge us after every flow project:
- Physixfactor has a very pragmatic attitude and thinks along to realize a good solution. Innovation is in the DNA. Always willing to achieve the best results for you.
- Smooth and short communication lines with customers. This allows multidisciplinary projects to be carried out quickly and cost-efficiently.
- We have an enterprising attitude and are prepared to take responsibility for the project results.
