1.
J. Baltazar, Rijpkema; Bosschers, J.
Prediction of the Open-Water Performance of Ducted Propellers With a Panel Method Conference
Fifth International Symposium on Marine Propulsors (SMP), Espoo, Finland, 2017.
@conference{Baltazar2017b,
title = {Prediction of the Open-Water Performance of Ducted Propellers With a Panel Method},
author = {Baltazar, J., Rijpkema, D.R., Falcão de Campos, J.A.C. and Bosschers, J.},
url = {http://www.marin.nl/web/Publications/Publication-items/Prediction-of-the-OpenWater-Performance-of-Ducted-Propellers-With-a-Panel-Method.htm},
year = {2017},
date = {2017-06-01},
booktitle = {Fifth International Symposium on Marine Propulsors (SMP), Espoo, Finland},
abstract = {In the present work, a comparison between the results obtained by a panel code with a RANS code is made to obtain a better insight on the viscous effects of the ducted propeller and on the limitations of the inviscid flow model, especially near bollard pull conditions or low advance ratios, which are important in the design stage. The analysis is carried out for propeller Ka4-70 operating inside duct 19A. From the comparison, several modelling aspects are studied for improvement of the inviscid (potential) flow solution. Finally, the experimental open-water data is compared with the panel method and RANS solutions. A strong influence of the blade wake pitch, especially near the blade tip, on the ducted propeller force predictions is seen. A reduction of the pitch of the gap strip is proposed for improvement of the performance prediction at low advance ratios.},
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
In the present work, a comparison between the results obtained by a panel code with a RANS code is made to obtain a better insight on the viscous effects of the ducted propeller and on the limitations of the inviscid flow model, especially near bollard pull conditions or low advance ratios, which are important in the design stage. The analysis is carried out for propeller Ka4-70 operating inside duct 19A. From the comparison, several modelling aspects are studied for improvement of the inviscid (potential) flow solution. Finally, the experimental open-water data is compared with the panel method and RANS solutions. A strong influence of the blade wake pitch, especially near the blade tip, on the ducted propeller force predictions is seen. A reduction of the pitch of the gap strip is proposed for improvement of the performance prediction at low advance ratios.
2017
J. Baltazar, Rijpkema; Bosschers, J.
Prediction of the Open-Water Performance of Ducted Propellers With a Panel Method Conference
Fifth International Symposium on Marine Propulsors (SMP), Espoo, Finland, 2017.
Abstract | Links | BibTeX | Tags: Ducted Propeller, Gap Strip Pitch., Panel Method, RANS
@conference{Baltazar2017b,
title = {Prediction of the Open-Water Performance of Ducted Propellers With a Panel Method},
author = {Baltazar, J., Rijpkema, D.R., Falcão de Campos, J.A.C. and Bosschers, J.},
url = {http://www.marin.nl/web/Publications/Publication-items/Prediction-of-the-OpenWater-Performance-of-Ducted-Propellers-With-a-Panel-Method.htm},
year = {2017},
date = {2017-06-01},
booktitle = {Fifth International Symposium on Marine Propulsors (SMP), Espoo, Finland},
abstract = {In the present work, a comparison between the results obtained by a panel code with a RANS code is made to obtain a better insight on the viscous effects of the ducted propeller and on the limitations of the inviscid flow model, especially near bollard pull conditions or low advance ratios, which are important in the design stage. The analysis is carried out for propeller Ka4-70 operating inside duct 19A. From the comparison, several modelling aspects are studied for improvement of the inviscid (potential) flow solution. Finally, the experimental open-water data is compared with the panel method and RANS solutions. A strong influence of the blade wake pitch, especially near the blade tip, on the ducted propeller force predictions is seen. A reduction of the pitch of the gap strip is proposed for improvement of the performance prediction at low advance ratios.},
keywords = {Ducted Propeller, Gap Strip Pitch., Panel Method, RANS},
pubstate = {published},
tppubtype = {conference}
}
In the present work, a comparison between the results obtained by a panel code with a RANS code is made to obtain a better insight on the viscous effects of the ducted propeller and on the limitations of the inviscid flow model, especially near bollard pull conditions or low advance ratios, which are important in the design stage. The analysis is carried out for propeller Ka4-70 operating inside duct 19A. From the comparison, several modelling aspects are studied for improvement of the inviscid (potential) flow solution. Finally, the experimental open-water data is compared with the panel method and RANS solutions. A strong influence of the blade wake pitch, especially near the blade tip, on the ducted propeller force predictions is seen. A reduction of the pitch of the gap strip is proposed for improvement of the performance prediction at low advance ratios.