The Experts below are selected from a list of 222 Experts worldwide ranked by ideXlab platform
Richard W. Kimball - One of the best experts on this subject based on the ideXlab platform.
-
an open source parametric Propeller Design tool
OCEANS Conference, 2007Co-Authors: K P Depagnier, HSIN-LUNG CHUNG, M J Stairway, Richard W. KimballAbstract:An open source computational Propeller/turbine Design tool, the user-friendly open source MIT Propeller Vortex Lattice Lifting Line Program (OpenProp), is presented in this paper. This code has applications in Propeller Design for AUV and ROV thrusters as well as conventional Propellers. The code is also being utilized for tidal turbine Design. OpenProp is Designed to be a fast parametric Design tool for use by engineers with little training in Propeller Design. This tool can also be used by more experienced Designers, as a preliminary Design tool, to produce a starting Design for further refinement using more advanced Design and analysis codes. Various Design examples are presented, including an ROV Propeller Design and a contra-rotating AUV Thruster Design. These Propellers were constructed and performance tested. The performance data for these Propeller Designs is also presented. The code was validated against the US Navy's PLL code and these results are also presented. The OpenProp Propeller Design tool is part of a suite of open source tools under development for rapid Design, building and testing of Propeller Design models.
-
An open source parametric Propeller Design tool
Oceans Conference Record (IEEE), 2007Co-Authors: Kathryn P. D'epagnier, HSIN-LUNG CHUNG, Michael J. Stanway, Richard W. KimballAbstract:Abstract An open source computational Propeller /turbine Design tool, the user-friendly open source MIT Propeller Vortex Lattice Lifting Line Program (OpenProp), is presented in this paper. This code has applications in Propeller Design for AUV and ROV thrusters as well ... \n
Dong Shi-tang - One of the best experts on this subject based on the ideXlab platform.
-
Propeller Design by prescribed pressure distribution
Journal of Ship Mechanics, 2010Co-Authors: Dong Shi-tangAbstract:The B-spline curve and B-spline surface are employed to define 2D wing section and 3D pro-peller blade geomertry respectively.The pressure distribution of Eppler section is considered as the target for Designing blade section at 3D condition.Finally,The method and the example to Design 0.8R blade section to meet pressure distribution same as that of Eppler section are presented.
-
A Propeller Design Method with New Blade Section for Improving Cavitation Inception under Unsteady Condition
Journal of Ship Mechanics, 2001Co-Authors: Dong Shi-tangAbstract:A Propeller Design procedure for improving cavitation inception in non-uniform inflow is presented.Special attention is paid to the Design of blade sections with Eppler method,in order to behave higher cavitation inception speed. The two-dimensional section directly obtained by Eppler method is converted into a new blade section in three-dimensional case since they are significantly different from each other. Calculations show that the cavitation-free bucket diagram of new blade sections is wider than the conventional NACA sections. The lift-line and lift-surface methods are used for the initial Propeller Design with the circumferential averaged inflow.Using steady/unsteady panel method to check and to modify the Design for meeting the thrust requirement and selecting a key section suffering from cavitation. New blade sections are adopted to improve the cavitation bucket. To investigate the influence of the chordwise loading distribution forms on the Propeller performance, two Propellers with different chordwise loading are Designed. Their model test results confirm the effectiveness of the Design method.
HSIN-LUNG CHUNG - One of the best experts on this subject based on the ideXlab platform.
-
an open source parametric Propeller Design tool
OCEANS Conference, 2007Co-Authors: K P Depagnier, HSIN-LUNG CHUNG, M J Stairway, Richard W. KimballAbstract:An open source computational Propeller/turbine Design tool, the user-friendly open source MIT Propeller Vortex Lattice Lifting Line Program (OpenProp), is presented in this paper. This code has applications in Propeller Design for AUV and ROV thrusters as well as conventional Propellers. The code is also being utilized for tidal turbine Design. OpenProp is Designed to be a fast parametric Design tool for use by engineers with little training in Propeller Design. This tool can also be used by more experienced Designers, as a preliminary Design tool, to produce a starting Design for further refinement using more advanced Design and analysis codes. Various Design examples are presented, including an ROV Propeller Design and a contra-rotating AUV Thruster Design. These Propellers were constructed and performance tested. The performance data for these Propeller Designs is also presented. The code was validated against the US Navy's PLL code and these results are also presented. The OpenProp Propeller Design tool is part of a suite of open source tools under development for rapid Design, building and testing of Propeller Design models.
-
An open source parametric Propeller Design tool
Oceans Conference Record (IEEE), 2007Co-Authors: Kathryn P. D'epagnier, HSIN-LUNG CHUNG, Michael J. Stanway, Richard W. KimballAbstract:Abstract An open source computational Propeller /turbine Design tool, the user-friendly open source MIT Propeller Vortex Lattice Lifting Line Program (OpenProp), is presented in this paper. This code has applications in Propeller Design for AUV and ROV thrusters as well ... \n
-
an enhanced Propeller Design program based on Propeller vortex lattice lifting line theory
2007Co-Authors: HSIN-LUNG CHUNGAbstract:A suite of Propeller numerical Design tools was developed in MATLAB®, a high-level technical computing language. The tools were based on the FORTRAN programs developed by Professor Justin Kerwin at MIT in 2001 and include enhanced parametric Design capability, Graphical User Interfaces (GUIs) and enhanced graphics capability. The MIT Propeller Vortex Lattice Lifting Line Program (PVL) is an executable file written in FORTRAN language and serves as a preliminary Propeller Design tool. In this thesis, PVL was rewritten in MATLAB® and presented with the GUIs. The enhancements were incorporated in a revised Propeller Design program Designated MPVL to distinguish it from PVL. Several new features such as the user-friendly GUIs and colorful graphs were included in MPVL in addition to the full functions of PVL. Moreover, MPVL was validated by comparing its outputs with PVL and MIT Propeller Lifting Line Program (PLL) and proved to be consistent with PVL. The advantages of MPVL were revealed in this thesis and enabled MPVL to replace PVL.
G. Kuiper - One of the best experts on this subject based on the ideXlab platform.
-
New developments and Propeller Design
Journal of Hydrodynamics, 2010Co-Authors: G. KuiperAbstract:The use of newly available tools in Propeller Design is discussed. It is stated that new tools are too much used to imitate experimental results. The paper takes a step back and investigates new approaches to ship Propeller Design in which new tools are better integrated or calibrated.
-
a Propeller Design method for unsteady conditions
1993Co-Authors: G. Kuiper, S D JessupAbstract:A Design method for non-cavitating Propeller in non-uniform flow was developed. Special attention was given to the Design of blade sections. The Design method was used to Design a series of Propellers. The model test results of the Propeller series confirmed the effectiveness of the Design method. Some correlation with full scale results are included.
Peng Wu - One of the best experts on this subject based on the ideXlab platform.
-
a ship Propeller Design methodology of multi objective optimization considering fluid structure interaction
Engineering Applications of Computational Fluid Mechanics, 2018Co-Authors: Jingwei Jiang, Zhengfang Qian, Ke Chen, Peng WuAbstract:ABSTRACTThis paper presents a multi-objective optimization methodology that applies the Non-dominated Sorting Genetic Algorithm-II(NSGA-II) to Propeller Design, and realizes Fluid-Structure Interaction (FSI) weak-coupling based on Panel Method (PM) and the Finite Element Method (FEM). The FSI iterative process and the convergent pressure coefficient distribution and pressure fluctuation of HSP (a Propeller installed on a Japanese bulk freighter – Seiun-Maru) are numerical calculated. The FSI results turn out to have higher precision than those without FSI. The appropriate optimization parameters are chosen after studying five cases. The Sobol method, a global Sensitivity Analysis (SA) algorithm, is used to quantify the dependence of objectives and constraints on the input parameters. In the multi-objective optimization methodology, efficiency, unsteady force, and mass are chosen as optimum objectives under certain constraints. Effectiveness and robustness of the methodology are validated by running the pr...
-
A ship Propeller Design methodology of multi-objective optimization considering fluid–structure interaction
Engineering Applications of Computational Fluid Mechanics, 2017Co-Authors: Jingwei Jiang, Zhengfang Qian, Ke Chen, Cheng Ma, Peng WuAbstract:ABSTRACTThis paper presents a multi-objective optimization methodology that applies the Non-dominated Sorting Genetic Algorithm-II(NSGA-II) to Propeller Design, and realizes Fluid-Structure Interaction (FSI) weak-coupling based on Panel Method (PM) and the Finite Element Method (FEM). The FSI iterative process and the convergent pressure coefficient distribution and pressure fluctuation of HSP (a Propeller installed on a Japanese bulk freighter – Seiun-Maru) are numerical calculated. The FSI results turn out to have higher precision than those without FSI. The appropriate optimization parameters are chosen after studying five cases. The Sobol method, a global Sensitivity Analysis (SA) algorithm, is used to quantify the dependence of objectives and constraints on the input parameters. In the multi-objective optimization methodology, efficiency, unsteady force, and mass are chosen as optimum objectives under certain constraints. Effectiveness and robustness of the methodology are validated by running the pr...
