Analysis of Hull Shape Effects on Hydrodynamic Drag in Offshore Handicap Racing Rules

2003 ◽  
Author(s):  
Jim Teeters ◽  
Rob Pallard ◽  
Caroline Muselet
Keyword(s):  
Measurement System ◽  
Research Program ◽  
Hydrodynamic Drag ◽  
Joint Research ◽  
Fundamental Parameters ◽  
Calm Water ◽  
Shape Effects ◽  
Velocity Prediction ◽  
Joint Research Program ◽  
International Measurement

US Sailing and the Institute for Marine Dynamics (IMD) in St. John’s, Newfoundland, are collaborating in a joint research program to investigate the effects of hull shape variations on hydrodynamic drag. The results of this program are being used to support the development of rules that handicap racing yachts. A fleet of 9 models has been designed with systematic variations in the most fundamental parameters: displacement and beam for fixed length. Six of those models have been tested both appended and bare-hull, in calm water and head seas. Analysis of residuary resistance, both upright and heeled, has been used to improve the Velocity Prediction Programs (VPPs) employed by both the International Measurement System (IMS) and AMERICAP rules.

Scoring IMS Regattas - An Empirical Study of Alternative Methods

1995 ◽  
Author(s):  
John W. Cane
Keyword(s):  
Empirical Study ◽  
Measurement System ◽  
Alternative Methods ◽  
Prediction Program ◽  
Data Points ◽  
Velocity Prediction ◽  
International Measurement

The International Measurement System (IMS) uses a computerized velocity prediction program (VPP) to calculate the performance of a meas­ured hull and rig in winds from six to twenty knots, at any sailing angle. A regatta is scored by comparing a yacht's performance with pre­dictions of the VPP. The winner is the yacht whose performance, relative to its VPP predic­tions, is the best, compared to all other yachts in its class or division. This paper discusses different methods of malc­ing the comparison and accounting for various factors in the race such as wind shifts and cur­rent on the course. Decisions made by race man­agers and/or developers of scoring programs can significantly impact results. Illustrative examples show the effects that these decisions can have. In 1994 the number of data points available for use in scoring yachts in custom courses doubled. Alternative ways of using these data are illus­trated by application to a sample regatta.

Spotlight on e-Asia JRP

Impact ◽  
2020 ◽  
Vol 2020 (3) ◽  
pp. 34-35
Author(s):  
Lucy Sharp
Keyword(s):  
East Asia ◽  
Research Program ◽  
East Asian ◽  
Joint Research ◽  
East Asian Region ◽  
Asian Region ◽  
Joint Research Program

In East Asia, the e-ASIA Joint Research Program has been supporting research for nearly a decade. Now, the 2020 calls for proposal have been released, and the Program is seeking to nurture a variety of important and pertinent projects with the potential to shape the research landscape in the East Asian region and beyond.

Theophrastus on Perceiving

Rhizomata ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 188-225 ◽  
Author(s):  
Victor Caston
Keyword(s):  
Research Program ◽  
Sense Organ ◽  
De Anima ◽  
Perceptual Awareness ◽  
Joint Research ◽  
Unity Of Consciousness ◽  
Central Monitoring ◽  
The Individual ◽  
Constructive Engagement ◽  
Joint Research Program

AbstractMany fragments from Theophrastus on perception are preserved by the late Neoplatonist, Priscian of Lydia. After preliminary source criticism concerning how to identify the fragments, I turn to Theophrastus’ discussion of perceiving and perceptual awareness. While he clearly rejects literalism, he also does not embrace “spiritualism”: he argues instead that we receive the defining proportions of perceptible qualities in the sense organ, though in different contraries than in the perceptible (thereby avoiding literalism). If Priscian’s report is faithful, Theophrastus also accepts a moderate capacity reading of De anima III.2, locating awareness in a central monitoring sense, common to the individual modalities; and this has further implications for the unity of consciousness. Theophrastus’ method, though aporetic in form, is nonetheless a constructive engagement with the same texts of Aristotle’s we have ourselves, in the service of a joint research program in psychology that he shared with his colleague and former teacher.

scholarly journals Spotlight on e-Asia JRP

Impact ◽  
2020 ◽  
Vol 2020 (5) ◽  
pp. 46-47
Author(s):  
Lucy Sharp
Keyword(s):  
East Asia ◽  
Research Program ◽  
East Asian ◽  
Joint Research ◽  
East Asian Region ◽  
Asian Region ◽  
Joint Research Program

In East Asia, the e-ASIA Joint Research Program has been supporting research for nearly a decade. Now, the 2020 calls for proposal have been released, and the Program is seeking to nurture a variety of important and pertinent projects with the potential to shape the research landscape in the East Asian region and beyond.

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