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3D Airflow Simulation in a Counterflow Virtual Impactor (CVI)

3D Airflow Simulation in a Counterflow Virtual Impactor (CVI). Vincent Vocourt , Laboratoire de Météorologie Physique (LaMP) Université de Clermont-Ferrand, France Thesis : Etalonnage et simulation numérique d’une sonde à impaction virtuelle (CVI)

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3D Airflow Simulation in a Counterflow Virtual Impactor (CVI)

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  1. 3D Airflow Simulation in a Counterflow Virtual Impactor (CVI) Vincent Vocourt, Laboratoire de Météorologie Physique (LaMP) Université de Clermont-Ferrand, France Thesis : Etalonnage et simulation numérique d’une sonde à impaction virtuelle (CVI) dans le cadre de l’étude des propriétés physico-chimiques des gouttes nuageuses Presented by Philippe Nacass, Météo France, CAM, Brétigny, France EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  2. Mesh refinementsaround CVI tip and through porous tube Gambit (stuctured and unstrucutured meshes) EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  3. Mesh refinementsaround CVI tip and through porous tube Gambit (stuctured and unstrucutured meshes) EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  4. Mesh refinementsaround CVI tip and through porous tube Gambit (stuctured and unstrucutured meshes) EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  5. Vin = 150 m.s-1 (at -20 mm) T = 273 K Turbulence intensity 8% Simulated flow conditions EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  6. F2 : 98 %F3 : 2 % Simulated flow conditions EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  7. F1 : V = 6 m.s-1 T = 300 K Turbulence intensity 6% Simulated flow conditions EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  8. Porous size : 40 m Permeability : 2.378 10-11 m2 Simulated flow conditions EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  9. Wind tunnel : Vin = 40 m.s-1 Vout = 150 m.s-1 Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  10. Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  11. Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  12. Particle trajectories EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  13. Diameter >> 10m Particle trajectories EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  14. Diameter << 5m Particle trajectories EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  15. Particle trajectories around CVI tip EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  16. Vin = 150 m.s-1 VCF = 1 L.mn-1 Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  17. Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  18. Diameter << DCut(50%) Particle trajectories in the probe EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  19. Diameter >> DCut(50%) Particle trajectories in the probe EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  20. Diameter  DCut(50%) Particle trajectories in the probe EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

  21. Modeling has to continue ! EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002

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