Numerical Simulations (CFD)

CFD Numerical Simulations

D&BTech simulate the behavior of fluids in complex systems. Powerful software running on a set of 12 servers is used for these numerical calculations.

CFD MODELING TECHNIQUES

Heat transfer

Heat transfer models include the three main mecanisms of interest in engineering: conduction, convection and radiation.
This way, it is possible to study any process where heat transfer occurs in the form of combined mecanisms, analyzing implications and influence in the thermic design.
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Some examples:

Flame expansion analysis in fires
Thermic treatments applied in manufacturing of metallic components (stress stabilization).
Thermic treatments in components made of fiber and polymers (curation).
Multiphase flows

Multiphase flows

The use of the CFD tool enables the simulation of all kind of multiphase flows, from small scales (drops, microbubbles) to free surface phenomena. 

Different mathematical models facilitates the study of problems in which more than one fluid is present: mixture processes, dispersion of contaminants, drops and bubbles formation, cavitation, flows in channels with free surface and waves, etc.

Chemical and biological reactors

Mixing, mass and heat transfer are essential mechanisms in many stirred reactors both at laboratory (research and development) and industrial productive processes. Scaling of these processes is also another interesting application of CFD simulations.

The CFD tool allows for he optimization of these processes in terms of homogenization and stability, reducing time of reaction, shear forces on biological culture, energy consumption, etc.

Chemical and biological reactors
Waterworks

Waterworks

Traditionallly, Civil Engineering (channels, dams, pumping stations, locks, ports, etc.) have been planned and executed according to calculation and design guidances which had been established and contrasted for a long time in the Schools of Engineering.

Sometimes, building and testing scaled models, allowed to ratify/modify the plans before the final construction at real scale.

The Numeric Simulation offers new possibilities for designing and detecting problems in a stage previous to scaled models, which has time/cost saving as a consequence.

Specific models

Taylored-made models can be implemented for any process in which fluids involved, to be analyzed with the CFD technique.

Once the simulation provides a satisfactory result (callibration of the model), the next steps of experimentation and later scaling at industrial level are approached with high probability of achieving success.

Chemical and biological reactors
Waterworks

Aeroelasticity

The CFD tool is also indicated for an analysis previous to mechanic calculations in which tensions in the constitutive components of the structure are obtained in a realistic way.

The wide variety of contour conditions that may be imposed to the analyzed flow also permits to study a number of cases both in stationary and transitory regimes.

Experimental tests

Once CFD simulations have been contrasted with prototypes or experimental designs and correlation between results achieved through both ways have been validated, the technique is applied again for the so called “precise optimization” or if necessary for further scaling of bigger dimensions.

Chemical and biological reactors