Day 3 Thu, August 10, 1989最新文献_第2页

The use of System Identification Techniques to Measure the Ship Resistance, Powering and Maneuvering Coefficients of the Exxon Philadelphia and a Submarine from Simple Trials During a Routine Voyage 利用系统识别技术测量埃克森费城号和一艘潜艇在常规航行中的阻力、动力和机动系数

Day 3 Thu, August 10, 1989 Pub Date : 1989-08-08 DOI: 10.5957/attc-1989-043

Hartin Abkowitz

引用次数: 2

Experimental Investigation of Oscillating Foil Propellers 摆动翼型螺旋桨的实验研究

Day 3 Thu, August 10, 1989 Pub Date : 1989-08-08 DOI: 10.5957/attc-1989-037

P. Lai, R. Mcgregor, N. Bose

引用次数: 3

An Examination of Axisymmetric Propeller-Hull Interaction Effects and Their Impact on the Design of Propeller-Vehicle Systems 轴对称螺旋桨-船体相互作用效应及其对螺旋桨-飞行器系统设计影响的研究

Day 3 Thu, August 10, 1989 Pub Date : 1989-08-08 DOI: 10.5957/attc-1989-040

J. Uhlman

{"title":"An Examination of Axisymmetric Propeller-Hull Interaction Effects and Their Impact on the Design of Propeller-Vehicle Systems","authors":"J. Uhlman","doi":"10.5957/attc-1989-040","DOIUrl":"https://doi.org/10.5957/attc-1989-040","url":null,"abstract":"It has been recognized for some time that the interaction between the flow past a vehicle hull with that through the vehicle's propulsor is significant in the sense that the loads experienced by the propulsor and the hull can be drastically alterred by the interaction. Traditionally these interactions have been taken into account empirically. More recently simple interaction models have begun to be used 10 obtain more accurate theoretical predictions of these effects. Herein is contained a program which advances the state-of-the-art by integrating currently available models to calculate these interaction effects directly.\u0000 Separate numerical models presently exist for the calculation of the flow about an axisymmetric body and for the flow through a propeller. The present program, APHIPS (Axisymmetric Propeller-Hull Interaction Program System), employs a boundary-integral model for the axisymmetric potential flow about the vehicle hull, a finite-difference model for the axisymmetric boundary-layer flow along the hull and a full three-dimensional boundary-integral model for the calculation of the potential flow through the propeller. These three flow models interact and the solution of each modifies the solution of the other two. The final equilibrium achieved represents the flow solution about the hull-propeller system with all the interactions taken into account.\u0000 The APHIPS program has been employed to predict the interaction of the hull and propeller flows about bodies of Navy interest for which experimental measurements exist. The results of the numerical calculation have been compared with the experimental findings for validation and the agreement has been found to be good. Preliminary investigations into the nature and magnitude of the flow interactions have also been performed. Examination of these results indicates that the interactions can be quite significant and can therefore have a large impact on the design of propeller-vehicle systems.","PeriodicalId":421711,"journal":{"name":"Day 3 Thu, August 10, 1989","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1989-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134123178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance Assessment of Propeller Boss Cap Fin Type Device 螺旋桨凸台盖翅式装置性能评价

Day 3 Thu, August 10, 1989 Pub Date : 1989-08-08 DOI: 10.5957/attc-1989-041

Y. Gearhart, M. McBride

引用次数: 1