Documents disponibles écrits par cet auteur

Computational fluid dynamics simulation and experimental investigation / Mayur J. Sathe in Industrial & engineering chemistry research, Vol. 49 N° 1 (Janvier 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 1 (Janvier 2010) . - pp. 14–28 Titre : Computational fluid dynamics simulation and experimental investigation : study of two-phase liquid−liquid flow in a vertical taylor−couette contactor Type de document : texte imprimé Auteurs : Mayur J. Sathe, Auteur ; Sandesh S. Deshmukh, Auteur ; Jyeshtharaj B. Joshi, Auteur Année de publication : 2010 Article en page(s) : pp. 14–28 Langues : Anglais (eng) Mots-clés : study--two-phase--liquid−liquid--flow--vertical--taylor−couette--contactor ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900185z [article] Computational fluid dynamics simulation and experimental investigation : study of two-phase liquid−liquid flow in a vertical taylor−couette contactor [texte imprimé] / Mayur J. Sathe, Auteur ; Sandesh S. Deshmukh, Auteur ; Jyeshtharaj B. Joshi, Auteur . - 2010 . - pp. 14–28. Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 1 (Janvier 2010) . - pp. 14–28 Mots-clés : study--two-phase--liquid−liquid--flow--vertical--taylor−couette--contactor ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900185z

Evaluation of local turbulent energy dissipation rate using PIV in jet loop reactor / Sagar S. Deshpande in Industrial & engineering chemistry research, Vol. 48 N° 10 (Mai 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 5046–5057 Titre : Evaluation of local turbulent energy dissipation rate using PIV in jet loop reactor Type de document : texte imprimé Auteurs : Sagar S. Deshpande, Auteur ; Mayur J. Sathe, Auteur ; Jyeshtharaj B. Joshi, Auteur Année de publication : 2009 Article en page(s) : pp. 5046–5057 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Jet  loop  reactors  Particle  image  velocimetry  Laser  Doppler  velocimetry  Hot  film  anemometry  Turbulent  dissipation  rate Résumé : In the present work, experimental analysis has been carried out for jet loop reactors to investigate the mean and turbulence parameters. Measurements have been made using particle image velocimetry (PIV), laser Doppler velocimetry (LDV), and hot film anemometry (HFA). The major aim of this work is to evaluate the local value of turbulent dissipation rate (ε) using PIV. LDV has been used as a benchmark for analyzing the mean flow quantities, while HFA has been mainly used for the evaluation of energy spectra. Thus, the relative strength of these instruments was harnessed for better understanding of the flow pattern. A method has been proposed for the evaluation of ε from the experimental data from PIV and HFA based on structure function relationships and 3D energy spectrum. Overall energy balance has been satisfied implicitly to make the method of ε estimation more robust. As an application, the values of ε obtained from the CFD predictions (Large eddy simulations) have been compared with that of the experimental values showing opportunity for improved design of turbulence based on local ε variations. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8007924 [article] Evaluation of local turbulent energy dissipation rate using PIV in jet loop reactor [texte imprimé] / Sagar S. Deshpande, Auteur ; Mayur J. Sathe, Auteur ; Jyeshtharaj B. Joshi, Auteur . - 2009 . - pp. 5046–5057. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 5046–5057 Mots-clés : Jet  loop  reactors  Particle  image  velocimetry  Laser  Doppler  velocimetry  Hot  film  anemometry  Turbulent  dissipation  rate Résumé : In the present work, experimental analysis has been carried out for jet loop reactors to investigate the mean and turbulence parameters. Measurements have been made using particle image velocimetry (PIV), laser Doppler velocimetry (LDV), and hot film anemometry (HFA). The major aim of this work is to evaluate the local value of turbulent dissipation rate (ε) using PIV. LDV has been used as a benchmark for analyzing the mean flow quantities, while HFA has been mainly used for the evaluation of energy spectra. Thus, the relative strength of these instruments was harnessed for better understanding of the flow pattern. A method has been proposed for the evaluation of ε from the experimental data from PIV and HFA based on structure function relationships and 3D energy spectrum. Overall energy balance has been satisfied implicitly to make the method of ε estimation more robust. As an application, the values of ε obtained from the CFD predictions (Large eddy simulations) have been compared with that of the experimental values showing opportunity for improved design of turbulence based on local ε variations. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8007924

Residence time distribution and flow patterns in the single-phase annular region of annular centrifugal extractor / Sandesh S. Deshmukh in Industrial & engineering chemistry research, Vol. 48 N°1 (Janvier 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - p. 37-46 Titre : Residence time distribution and flow patterns in the single-phase annular region of annular centrifugal extractor Type de document : texte imprimé Auteurs : Sandesh S. Deshmukh, Editeur scientifique ; Mayur J. Sathe, Editeur scientifique ; Jyeshtharaj B. Joshi, Editeur scientifique Année de publication : 2009 Article en page(s) : p. 37-46 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Two  concentric  cylinders  Residence  time  distribution  Annular  centrifugal  extractor Résumé : Flow between two concentric cylinders with high-speed rotation of the inner cylinder, also termed as turbulent Taylor−Couette flow, is an integral part of annular centrifugal extractor (ACE). The vortex motion in the annular region causes intense mixing, of the two liquids, and their separation occurs in the inner cylinder under centrifugal action. In the present work, a systematic study of residence time distribution (RTD) in the annular region of ACE has been carried out experimentally as well as using computational fluid dynamics (CFD). The effects of rotational speed (10 ≤ ω ≤ 40, r/s), aspect ratio of annulus (11 ≤ Γ ≤ 48), width of annular gap (1.5 ≤ d ≤ 6.5, mm), and the flow ratio of the immiscible fluids (0.73 ≤ FR ≤ 2.4) have been systematically investigated. Effect of flow ratio, annular gap, and rotational speed has been investigated on the RTD. It was found that the flow in ACE is near to back-mixed behavior because of the presence of counterrotating vortices. The number of vortices depends on the rotational speed and the geometrical parameters of ACE. An attempt has been made to reduce back-mixing by providing radial baffles in the annulus. Good agreement was observed between the experimental measurements and CFD predictions of RTD. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800231d [article] Residence time distribution and flow patterns in the single-phase annular region of annular centrifugal extractor [texte imprimé] / Sandesh S. Deshmukh, Editeur scientifique ; Mayur J. Sathe, Editeur scientifique ; Jyeshtharaj B. Joshi, Editeur scientifique . - 2009 . - p. 37-46. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°1 (Janvier 2009) . - p. 37-46 Mots-clés : Two  concentric  cylinders  Residence  time  distribution  Annular  centrifugal  extractor Résumé : Flow between two concentric cylinders with high-speed rotation of the inner cylinder, also termed as turbulent Taylor−Couette flow, is an integral part of annular centrifugal extractor (ACE). The vortex motion in the annular region causes intense mixing, of the two liquids, and their separation occurs in the inner cylinder under centrifugal action. In the present work, a systematic study of residence time distribution (RTD) in the annular region of ACE has been carried out experimentally as well as using computational fluid dynamics (CFD). The effects of rotational speed (10 ≤ ω ≤ 40, r/s), aspect ratio of annulus (11 ≤ Γ ≤ 48), width of annular gap (1.5 ≤ d ≤ 6.5, mm), and the flow ratio of the immiscible fluids (0.73 ≤ FR ≤ 2.4) have been systematically investigated. Effect of flow ratio, annular gap, and rotational speed has been investigated on the RTD. It was found that the flow in ACE is near to back-mixed behavior because of the presence of counterrotating vortices. The number of vortices depends on the rotational speed and the geometrical parameters of ACE. An attempt has been made to reduce back-mixing by providing radial baffles in the annulus. Good agreement was observed between the experimental measurements and CFD predictions of RTD. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800231d