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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) 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
Mesh refinementsaround CVI tip and through porous tube Gambit (stuctured and unstrucutured meshes) EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Mesh refinementsaround CVI tip and through porous tube Gambit (stuctured and unstrucutured meshes) EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Mesh refinementsaround CVI tip and through porous tube Gambit (stuctured and unstrucutured meshes) EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
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
F2 : 98 %F3 : 2 % Simulated flow conditions EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
F1 : V = 6 m.s-1 T = 300 K Turbulence intensity 6% Simulated flow conditions EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Porous size : 40 m Permeability : 2.378 10-11 m2 Simulated flow conditions EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
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
Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Particle trajectories EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Diameter >> 10m Particle trajectories EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Diameter << 5m Particle trajectories EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Particle trajectories around CVI tip EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
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
Velocity field of air stream lines EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Diameter << DCut(50%) Particle trajectories in the probe EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Diameter >> DCut(50%) Particle trajectories in the probe EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Diameter DCut(50%) Particle trajectories in the probe EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002
Modeling has to continue ! EUFAR Experts Workshop, Capua (Italy), 16–20 September 2002