This work is focusedon the investigation of coalescence under shear flow in aqueous mixtures of Na-alginate andNa-caseinate. Shear flow was generatedin a parallel plate apparatus coupledwith an optical microscope. Drop size distribution was measuredas a function of time by computer controlled3D optical sectioning of the sample andof fline image analysis. Automatedproced ures of image analysis, basedon out-of-focus components subtraction andd rop contour detection, were implementedto measure a large number of drops, as requiredto minimize sampling errors. The effects of dispersedphase volume fraction andshear rate on the flow-inducede volution of the drop size distribution were explored. Finally, 3D reconstruction of the locations of the drops within the sample was performed to evaluate possible wall andsed imentation effects.

Shear-induced coalescence in aqueous biopolymer mixtures / Caserta, Sergio; L., Sabetta; Simeone, Marino; Guido, Stefano. - In: CHEMICAL ENGINEERING SCIENCE. - ISSN 0009-2509. - ELETTRONICO. - 60:(2005), pp. 1019-1027. [10.1016/j.ces.2004.09.076]

Shear-induced coalescence in aqueous biopolymer mixtures

CASERTA, Sergio;SIMEONE, MARINO;GUIDO, STEFANO
2005

Abstract

This work is focusedon the investigation of coalescence under shear flow in aqueous mixtures of Na-alginate andNa-caseinate. Shear flow was generatedin a parallel plate apparatus coupledwith an optical microscope. Drop size distribution was measuredas a function of time by computer controlled3D optical sectioning of the sample andof fline image analysis. Automatedproced ures of image analysis, basedon out-of-focus components subtraction andd rop contour detection, were implementedto measure a large number of drops, as requiredto minimize sampling errors. The effects of dispersedphase volume fraction andshear rate on the flow-inducede volution of the drop size distribution were explored. Finally, 3D reconstruction of the locations of the drops within the sample was performed to evaluate possible wall andsed imentation effects.
2005
Shear-induced coalescence in aqueous biopolymer mixtures / Caserta, Sergio; L., Sabetta; Simeone, Marino; Guido, Stefano. - In: CHEMICAL ENGINEERING SCIENCE. - ISSN 0009-2509. - ELETTRONICO. - 60:(2005), pp. 1019-1027. [10.1016/j.ces.2004.09.076]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/204479
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 33
  • ???jsp.display-item.citation.isi??? 33
social impact