Industrieprozesse Product Management Software Entwicklung F+E Unterstützung Projekten Börse  
        esp cat eng deu  
    F+E Unterstützung      
   

Dieser Dienstbereich ist angedacht für Unternehmen mit einer grossen F+E Aktivität, die ein Teil ihrer F+E Projekte externalizieren sollen. In diesem Bereich werden reine fachwissenschaftliche Projekte durchgeführt:

  • Mechanische Modellierungen
  • Nummerische Simulationen
  • Energie- oder Massenbilanzen
  • Mechanische Parametrierungen
  • usw.
    
   
Projektbeispiel- Numerische Simulation eines Luftströmmes durch eine Sphärenanordnung
    
   

Main objectives: The air flows in a closed room from the roof into the ground, crossing across a set of spheres with a certain high from the ground. This study has to research the dependence of the turbulence in the air flow and the layout of the spheres disposition. It is wanted to identify the spheres configuration (with given diameter) that minimize the turbulence and enhance the hygiene in the room.

Planning and general structure of the project: procedure during the project execution.

First phase: Set of the hypothesis for the fluidodynamic model and geometries definition, boundary conditions and fluid properties. In a first instance, the interaction between spheres is studied, to find out the minimal space between them. For this first study a bi-dimensional simulation is enough. Subsequently a simulation to analyze the spheres minimal high to the ground are done.

Second phase: Resolution of the problem by means of CFD software. To improve the convergence of the simulations, the FE-calculations are done under different initial conditions and varying calculation parameters (iterations number, convergence criteria, variations on the numerical model, etc.)

Third phase: The most relevant information fore the conclusions of the study are gathered together. The results are validated and interpreted. The behavior of fluids through spherical bodies were many times researched, therefore the results can be validated comparing the numerical results with similar experimental or analytic cases.
Illustration 1: description of the scenario, where the simulations are done. The spheres and the air flow can be observed.
    
   
   
   

Illustration 2: Study of the interaction between the spheres (determination of the minimal space between them).

 Illustration 3: Study of the effect of one only sphere (determination of the high to the ground).  

 

 


 
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