The Experts below are selected from a list of 22146 Experts worldwide ranked by ideXlab platform
Giles Thomas - One of the best experts on this subject based on the ideXlab platform.
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full scale simulation based hull form design for large medium speed catamarans with high fuel efficiency
13th International Conference on Fast Sea Transportation, 2015Co-Authors: M Haase, Giles Thomas, G Davidson, Stuart Friezer, Jonathan Binns, N BoseAbstract:Large medium-speed catamarans are being developed to provide fuel-efficient fast Sea Transportation at Froude numbers between 0.25 and 0.50 correlating to speeds between 16 and 41 knots. A hull form family comprising lengths of 110 m to 190 m was derived with demihull slenderness ratios ranging from 9 to 15. The drag force for the full-scale vessels was determined by a novel approach using computational fluid dynamics. A demihull slenderness for lowest drag occurred between 11 and 13, however minimum drag can only be achieved if the transom immersion is small. Furthermore it was found that hull lengths of 150 m and above provide highest fuel efficiency for vessel speeds between 24 and 33 knots.
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maximising fuel efficiency by utilising full scale cfd for the initial ship design process validation and application for large catamarans
Pacific International Maritime Conference 2015, 2015Co-Authors: M Haase, G Davidson, Stuart Friezer, Jonathan Binns, N Bose, Giles ThomasAbstract:Official regulations to limit the emissions of ships and ever-rising fuel costs will raise the demand for vessels with low fuel consumption to allow for environmental sustainable and economic viable Sea Transportation. Thus reducing fuel consumption is vital for maintaining competitiveness and a positive image of Sea shipping over other modes of Transportation. A reduction in drag for a given payload will reduce the required power and hence the required amount of fuel to carry a certain payload to its destination. In the early stages of the ship design process, a ship’s overall dimensions and its hull form properties need to be defined. In broad terms for a given deadweight capacity, the hull can be slender to provide a reduced wave-making drag, or it can be more compact to reduce the wetted surface area and hence frictional resistance; the length allowing for the lowest fuel consumption will then depend on the desired service speed. Therefore it is important to be capable of making accurate drag predictions in the early design stage where numerous combinations of potential hull form geometries at different speeds can be evaluated with respect to their drag force.
M Haase - One of the best experts on this subject based on the ideXlab platform.
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full scale simulation based hull form design for large medium speed catamarans with high fuel efficiency
13th International Conference on Fast Sea Transportation, 2015Co-Authors: M Haase, Giles Thomas, G Davidson, Stuart Friezer, Jonathan Binns, N BoseAbstract:Large medium-speed catamarans are being developed to provide fuel-efficient fast Sea Transportation at Froude numbers between 0.25 and 0.50 correlating to speeds between 16 and 41 knots. A hull form family comprising lengths of 110 m to 190 m was derived with demihull slenderness ratios ranging from 9 to 15. The drag force for the full-scale vessels was determined by a novel approach using computational fluid dynamics. A demihull slenderness for lowest drag occurred between 11 and 13, however minimum drag can only be achieved if the transom immersion is small. Furthermore it was found that hull lengths of 150 m and above provide highest fuel efficiency for vessel speeds between 24 and 33 knots.
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maximising fuel efficiency by utilising full scale cfd for the initial ship design process validation and application for large catamarans
Pacific International Maritime Conference 2015, 2015Co-Authors: M Haase, G Davidson, Stuart Friezer, Jonathan Binns, N Bose, Giles ThomasAbstract:Official regulations to limit the emissions of ships and ever-rising fuel costs will raise the demand for vessels with low fuel consumption to allow for environmental sustainable and economic viable Sea Transportation. Thus reducing fuel consumption is vital for maintaining competitiveness and a positive image of Sea shipping over other modes of Transportation. A reduction in drag for a given payload will reduce the required power and hence the required amount of fuel to carry a certain payload to its destination. In the early stages of the ship design process, a ship’s overall dimensions and its hull form properties need to be defined. In broad terms for a given deadweight capacity, the hull can be slender to provide a reduced wave-making drag, or it can be more compact to reduce the wetted surface area and hence frictional resistance; the length allowing for the lowest fuel consumption will then depend on the desired service speed. Therefore it is important to be capable of making accurate drag predictions in the early design stage where numerous combinations of potential hull form geometries at different speeds can be evaluated with respect to their drag force.
N Bose - One of the best experts on this subject based on the ideXlab platform.
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full scale simulation based hull form design for large medium speed catamarans with high fuel efficiency
13th International Conference on Fast Sea Transportation, 2015Co-Authors: M Haase, Giles Thomas, G Davidson, Stuart Friezer, Jonathan Binns, N BoseAbstract:Large medium-speed catamarans are being developed to provide fuel-efficient fast Sea Transportation at Froude numbers between 0.25 and 0.50 correlating to speeds between 16 and 41 knots. A hull form family comprising lengths of 110 m to 190 m was derived with demihull slenderness ratios ranging from 9 to 15. The drag force for the full-scale vessels was determined by a novel approach using computational fluid dynamics. A demihull slenderness for lowest drag occurred between 11 and 13, however minimum drag can only be achieved if the transom immersion is small. Furthermore it was found that hull lengths of 150 m and above provide highest fuel efficiency for vessel speeds between 24 and 33 knots.
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maximising fuel efficiency by utilising full scale cfd for the initial ship design process validation and application for large catamarans
Pacific International Maritime Conference 2015, 2015Co-Authors: M Haase, G Davidson, Stuart Friezer, Jonathan Binns, N Bose, Giles ThomasAbstract:Official regulations to limit the emissions of ships and ever-rising fuel costs will raise the demand for vessels with low fuel consumption to allow for environmental sustainable and economic viable Sea Transportation. Thus reducing fuel consumption is vital for maintaining competitiveness and a positive image of Sea shipping over other modes of Transportation. A reduction in drag for a given payload will reduce the required power and hence the required amount of fuel to carry a certain payload to its destination. In the early stages of the ship design process, a ship’s overall dimensions and its hull form properties need to be defined. In broad terms for a given deadweight capacity, the hull can be slender to provide a reduced wave-making drag, or it can be more compact to reduce the wetted surface area and hence frictional resistance; the length allowing for the lowest fuel consumption will then depend on the desired service speed. Therefore it is important to be capable of making accurate drag predictions in the early design stage where numerous combinations of potential hull form geometries at different speeds can be evaluated with respect to their drag force.
Jonathan Binns - One of the best experts on this subject based on the ideXlab platform.
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full scale simulation based hull form design for large medium speed catamarans with high fuel efficiency
13th International Conference on Fast Sea Transportation, 2015Co-Authors: M Haase, Giles Thomas, G Davidson, Stuart Friezer, Jonathan Binns, N BoseAbstract:Large medium-speed catamarans are being developed to provide fuel-efficient fast Sea Transportation at Froude numbers between 0.25 and 0.50 correlating to speeds between 16 and 41 knots. A hull form family comprising lengths of 110 m to 190 m was derived with demihull slenderness ratios ranging from 9 to 15. The drag force for the full-scale vessels was determined by a novel approach using computational fluid dynamics. A demihull slenderness for lowest drag occurred between 11 and 13, however minimum drag can only be achieved if the transom immersion is small. Furthermore it was found that hull lengths of 150 m and above provide highest fuel efficiency for vessel speeds between 24 and 33 knots.
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maximising fuel efficiency by utilising full scale cfd for the initial ship design process validation and application for large catamarans
Pacific International Maritime Conference 2015, 2015Co-Authors: M Haase, G Davidson, Stuart Friezer, Jonathan Binns, N Bose, Giles ThomasAbstract:Official regulations to limit the emissions of ships and ever-rising fuel costs will raise the demand for vessels with low fuel consumption to allow for environmental sustainable and economic viable Sea Transportation. Thus reducing fuel consumption is vital for maintaining competitiveness and a positive image of Sea shipping over other modes of Transportation. A reduction in drag for a given payload will reduce the required power and hence the required amount of fuel to carry a certain payload to its destination. In the early stages of the ship design process, a ship’s overall dimensions and its hull form properties need to be defined. In broad terms for a given deadweight capacity, the hull can be slender to provide a reduced wave-making drag, or it can be more compact to reduce the wetted surface area and hence frictional resistance; the length allowing for the lowest fuel consumption will then depend on the desired service speed. Therefore it is important to be capable of making accurate drag predictions in the early design stage where numerous combinations of potential hull form geometries at different speeds can be evaluated with respect to their drag force.
Stuart Friezer - One of the best experts on this subject based on the ideXlab platform.
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full scale simulation based hull form design for large medium speed catamarans with high fuel efficiency
13th International Conference on Fast Sea Transportation, 2015Co-Authors: M Haase, Giles Thomas, G Davidson, Stuart Friezer, Jonathan Binns, N BoseAbstract:Large medium-speed catamarans are being developed to provide fuel-efficient fast Sea Transportation at Froude numbers between 0.25 and 0.50 correlating to speeds between 16 and 41 knots. A hull form family comprising lengths of 110 m to 190 m was derived with demihull slenderness ratios ranging from 9 to 15. The drag force for the full-scale vessels was determined by a novel approach using computational fluid dynamics. A demihull slenderness for lowest drag occurred between 11 and 13, however minimum drag can only be achieved if the transom immersion is small. Furthermore it was found that hull lengths of 150 m and above provide highest fuel efficiency for vessel speeds between 24 and 33 knots.
-
maximising fuel efficiency by utilising full scale cfd for the initial ship design process validation and application for large catamarans
Pacific International Maritime Conference 2015, 2015Co-Authors: M Haase, G Davidson, Stuart Friezer, Jonathan Binns, N Bose, Giles ThomasAbstract:Official regulations to limit the emissions of ships and ever-rising fuel costs will raise the demand for vessels with low fuel consumption to allow for environmental sustainable and economic viable Sea Transportation. Thus reducing fuel consumption is vital for maintaining competitiveness and a positive image of Sea shipping over other modes of Transportation. A reduction in drag for a given payload will reduce the required power and hence the required amount of fuel to carry a certain payload to its destination. In the early stages of the ship design process, a ship’s overall dimensions and its hull form properties need to be defined. In broad terms for a given deadweight capacity, the hull can be slender to provide a reduced wave-making drag, or it can be more compact to reduce the wetted surface area and hence frictional resistance; the length allowing for the lowest fuel consumption will then depend on the desired service speed. Therefore it is important to be capable of making accurate drag predictions in the early design stage where numerous combinations of potential hull form geometries at different speeds can be evaluated with respect to their drag force.