Discussion of Paper 1: Resistance and Propulsion Characteristics of the VWS Hard Chine Catamaran Hull Series '89

Muller-Graf, B; Radojčić, Dejan; Simić, Aleksandar; Savitsky, Daniel; Hackett, John P.; Fung, Siu C.

doi:10.5957/mt1.2003.40.4.303

Cited by 7 publications

(3 citation statements)

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“…To overcome these issues, systematic series of catamarans have been developed and tested in towing tests since the second half of the last century. Among the others, two systematic series are worthy to be mentioned: the Series '64 [12], which can be employed for the early design of round-bilge catamarans, and the Series '89 [13], related to hard-chine catamarans.…”

Section: Power Prediction For Catamaransmentioning

confidence: 99%

“…Given an operative scenario, the foreseen route(s) can be split into segments li having a constant speed Vi. Given a constant target hull volume ∇ coming from a preliminary weight estimate, for each speed, the total resistance RTi and quasi-propulsive efficiency ηDi can be evaluated as a function of L/BDH and β using the prediction method for series '89 [13]. Then, the total energy required by the propulsion system for the navigation on the given route(s) will be:…”

Section: Hull Forms Designmentioning

confidence: 99%

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A Methodology for the Hull Forms Design of a Passenger Catamaran for the Venice Lagoon

Braidotti

Bertagna

Zanin

et al. 2022

Progress in Marine Science and Technology

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The proper definition of the main geometric coefficients and the hull forms of a passenger catamaran must be carried out from the early design stage, due to its strong impact on the resistance, propulsion and the generated wave pattern. This is a primary concern especially in fragile environments, such as the Venice Lagoon, where waves increase erosion phenomena. In this work, a two-phase methodology for the definition of the hull forms of a passenger catamaran, based on both a parametric and CFD analysis, is presented. In the first phase, systematic series data are used to parametrically evaluate possible combinations of main hull dimensions (breadth of the demi hull, deadrise angle), selecting the best one to fit a specific operative scenario (minimisation of required energy). Then, after the validation of mesh parameters with a benchmark hull, the best hull forms are assessed through CFD simulations. To study the interference between the two hulls and select the proper configuration two different distances of the demi hulls are investigated. The methodology has been applied to the preliminary design of a 10 m passenger catamaran for the Venice Lagoon. Routes from the city centre to Marco Polo Airport or Torcello Island have been considered.

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Section: Power Prediction For Catamaransmentioning

confidence: 99%

Section: Hull Forms Designmentioning

confidence: 99%

A Methodology for the Hull Forms Design of a Passenger Catamaran for the Venice Lagoon

Braidotti

Bertagna

Zanin

et al. 2022

Progress in Marine Science and Technology

View full text Add to dashboard Cite

show abstract

“…Other research can also be found, such as Bruzzone et al, [14], study on hull separation length with the boundary element method. Muller-Graf et al, [15], conducted an extensive experimental study on a catamaran systematic series. Hydrodynamics aspects of the fast catamaran were investigated by Welnicki, [16,17].…”

Section: Introduction / Uvodmentioning

confidence: 99%

On the Development of Catamaran Hull Form for Fish Processing Vessel to Support Domestic Fishing Activities in Indonesia

et al. 2021

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Several advantages of multihull, such as catamaran, have been extensively discussed in the previous research. Therefore, this research focuses on developing a catamaran hull form for the fish processing vessel hull. The initial stage is determining the principal dimension and exploring the configurations of catamaran hull forms. The existing high-speed craft catamarans have been adopted to determine the parent model main dimensions using a linear regression equation model. Otherwise, the catamarans single demi-hull geometry was developed by converting and modifying the parent model hull form with enlarging the hull displacement to achieve the deadweight capacity and service speed requirements. The demi-hull spacing configuration with s/L 0.17, s/L 0.20, s/L 0.30, and s/L 0.40 on the resistance characteristics, intact stability, and sea-keeping behaviour were also explored. Furthermore, the comparisons with the previously proposed monohull were presented. Regarding the hull resistance performance, the analysis indicated that the catamaran hull form had better total resistance characteristics than the monohull on the service speed over 23 knots. In the case of intact stability, the analysis results presented that the catamaran hull form has better intact stability characteristics than the monohull. The dynamic stability of the catamarans also gave better dynamic stability at the heeling angle below 41.57°. Otherwise, the catamarans with s/L 0.17 and s/L 0.20 have lower dynamic stability than the monohull at the heeling angle larger than 41.57° and 58.03°, respectively. In the sea-keeping performance, the catamaran hull has shown an excellent rolling motion required for the offshore environment loading/unloading process. The large demi hull spacing of the catamarans hull can reduce the effect of the wave creating load on the roll motion response at the Beam Sea.

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Power Prediction

Radojčić¹,

Kalajdžić²,

Simić³

2019

Power Prediction Modeling of Conventional High-Speed Craft

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Discussion of Paper 1: Resistance and Propulsion Characteristics of the VWS Hard Chine Catamaran Hull Series '89

Cited by 7 publications

References 0 publications

A Methodology for the Hull Forms Design of a Passenger Catamaran for the Venice Lagoon

A Methodology for the Hull Forms Design of a Passenger Catamaran for the Venice Lagoon

On the Development of Catamaran Hull Form for Fish Processing Vessel to Support Domestic Fishing Activities in Indonesia

Power Prediction

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