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Use of hydraulic and aerial mock up to study atmospheric pollution; L'utilisation des maquettes aeriennes et hydrauliques pour l'etude de la pollution atmospherique

Abstract

Fundamental studies on turbulent atmospheric diffusion of finely divided particles, cannot remain on a purely theoretical basis. Further experimental studies must be considered. - In full scale, from accidental and induced releases. - On a reduced scale, in aerodynamic wind tunnels or hydraulic water tunnels. A first set of studies on reduced scale models has been worked out according to a contract between French 'Meteorologie Nationale' and French 'Commissariat a l'Energie Atomique' and with the Collaboration of Saint-Cyr 'Institut Aerotechnique'. Essentially two kinds of results have been obtained: - The mathematical model of SUTTON for the turbulent diffusion in the atmosphere, deduced from the SUTTON theory, generally used by us, has been correctly verified, qualitatively and quantitatively whenever experiments were consistent with the theory conditions. - The quantitative assays of photographic and cinematographic visualization have given precise details on the phenomena inaccessible to calculations, due to the influence of obstacles and release conditions. - Generally, it can be asserted, that the atmospheric pollution studies are worked out by mock up experimentations and that, in some cases these experiments never can be replaced by mathematically pure models. (authors) [French] Les etudes fondamentales portant sur la diffusion turbulente dans l'atmosphere de quantites  More>>
Publication Date:
Jul 01, 1962
Product Type:
Technical Report
Report Number:
CEA-R-2220
Resource Relation:
Other Information: PBD: 1962
Subject:
54 ENVIRONMENTAL SCIENCES; AIR POLLUTION; BENCH-SCALE EXPERIMENTS; CONCENTRATION RATIO; CONTAMINATION; DIFFUSION; INCOMPRESSIBLE FLOW; REYNOLDS NUMBER; ROUGHNESS; TURBULENCE; VALIDATION; VISCOSITY
OSTI ID:
20468515
Research Organizations:
Commissariat a l'Energie Atomique. Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR04R2220044225
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
63 pages
Announcement Date:

Citation Formats

Facy, L, Perrin De Brichambaut, C, Doury, A, and Le Quinio, R. Use of hydraulic and aerial mock up to study atmospheric pollution; L'utilisation des maquettes aeriennes et hydrauliques pour l'etude de la pollution atmospherique. France: N. p., 1962. Web.
Facy, L, Perrin De Brichambaut, C, Doury, A, & Le Quinio, R. Use of hydraulic and aerial mock up to study atmospheric pollution; L'utilisation des maquettes aeriennes et hydrauliques pour l'etude de la pollution atmospherique. France.
Facy, L, Perrin De Brichambaut, C, Doury, A, and Le Quinio, R. 1962. "Use of hydraulic and aerial mock up to study atmospheric pollution; L'utilisation des maquettes aeriennes et hydrauliques pour l'etude de la pollution atmospherique." France.
@misc{etde_20468515,
title = {Use of hydraulic and aerial mock up to study atmospheric pollution; L'utilisation des maquettes aeriennes et hydrauliques pour l'etude de la pollution atmospherique}
author = {Facy, L, Perrin De Brichambaut, C, Doury, A, and Le Quinio, R}
abstractNote = {Fundamental studies on turbulent atmospheric diffusion of finely divided particles, cannot remain on a purely theoretical basis. Further experimental studies must be considered. - In full scale, from accidental and induced releases. - On a reduced scale, in aerodynamic wind tunnels or hydraulic water tunnels. A first set of studies on reduced scale models has been worked out according to a contract between French 'Meteorologie Nationale' and French 'Commissariat a l'Energie Atomique' and with the Collaboration of Saint-Cyr 'Institut Aerotechnique'. Essentially two kinds of results have been obtained: - The mathematical model of SUTTON for the turbulent diffusion in the atmosphere, deduced from the SUTTON theory, generally used by us, has been correctly verified, qualitatively and quantitatively whenever experiments were consistent with the theory conditions. - The quantitative assays of photographic and cinematographic visualization have given precise details on the phenomena inaccessible to calculations, due to the influence of obstacles and release conditions. - Generally, it can be asserted, that the atmospheric pollution studies are worked out by mock up experimentations and that, in some cases these experiments never can be replaced by mathematically pure models. (authors) [French] Les etudes fondamentales portant sur la diffusion turbulente dans l'atmosphere de quantites de matieres finement divisees, ne peuvent se maintenir sur un plan exclusivement theorique. C'est pourquoi des etudes experimentales complementaires doivent etre obligatoirement envisagees: - en vraie grandeur, a partir d'emissions accidentelles ou provoquees; - sur modeles reduits, en soufflerie aerodynamique ou en veine hydraulique. En ce qui concerne les modeles reduits, une premiere serie d'etudes a pu etre menee a bien, dans le cadre d'un contrat passe entre la Meteorologie Nationale et le Commissariat a l'Energie Atomique, et avec la collaboration de l'Institut Aerotechnique de Saint-Cyr. Les resultats obtenus sont essentiellement de deux natures: - le modele mathematique de diffusion turbulente dans l'atmosphere, deduit de la theorie de Sutton, et que nous utilisons generalement, s'est trouve correctement verifie, qualitativement et quantitativement, dans tous les cas ou les conditions de validite de la theorie etaient remplies par l'experience; - les essais qualitatifs de visualisations photographiques ou cinematographiques ont apporte des precisions interessantes sur des phenomenes pratiquement inaccessibles aux calculs, lies notamment a l'influence des obstacles et des conditions de rejet. D'une maniere generale, on peut affirmer que les etudes de pollution atmospherique peuvent etre menees a bien par des experimentations sur maquettes, et que dans certains cas ces experimentations ne pourront jamais etre remplacees par des modeles mathematiques purs. (auteurs)}
place = {France}
year = {1962}
month = {Jul}
}