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                                       Details van artikel 2 van 13 gevonden artikelen
 
 
  AERODYNAMIC ATOMIZATION OF POLYMERIC SOLUTIONS
 
 
Titel: AERODYNAMIC ATOMIZATION OF POLYMERIC SOLUTIONS
Auteur: Matta, Joseph E.
Tytus, Raymond P.
Harris, Jeffrey L.
Verschenen in: Chemical engineering communications
Paginering: Jaargang 19 (1983) nr. 4-6 pagina's 191-204
Jaar: 1983-01-01
Inhoud: A helium activated firing device was used to propel viscoelastic fluid slugs (350 cc) to Mach I velocities. Aerodynamic forces disrupt the slug which eventually transforms into a cloud of droplets that fall on the ground below. Various concentrations and types of polymethyl methacrylate (PMM A) in diethylmalonate (DEM) were disseminated. The resultant average drop size for each trial was measured and shown to significantly increase with the addition of polymer. A correlation between average drop size and fluid viscosity was not observed. Both a relative relaxation time deduced from a simple die swell experiment and the first normal stress difference N1correlated dissemination trials conducted at ambient temperatures. However, only the relative relaxation time correlation was consistent with breakup trials using heated fluids. Use of N1, for predicting particle size from dissemination tests employing heated viscoelastic fluids can produce considerable error.
Uitgever: Taylor & Francis
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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