Submarine design optimization using boundary layer control

by Christopher L. Warren

Publisher: Available from National Technical Information Service in Springfield, Va

Written in English
Cover of: Submarine design optimization using boundary layer control | Christopher L. Warren
Published: Pages: 67 Downloads: 63
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Subjects:

  • SUBMARINE HULLS,
  • BOUNDARY LAYER CONTROL,
  • HULLS (STRUCTURES)

About the Edition

Several hull designs are studied with parametric based volume and area estimates to obtain preliminary hull forms. The volume and area study includes the effects of technologies which manifest themselves in the parametric study through stack length requirements. Subsequently, the hull forms are studied using a Reynolds Averaged Navier Stokes analysis coupled with a vortex lattice propeller design code. Optimization is done through boundary layer control analysis and through studies on the effect of blade loading magnitudes and profiles. Several hull form afterbody shapes are studied to improve the powering characteristics of a full stern submarine. The hydrodynamic analysis includes the total contribution of the rotor, stator, duct, the body hull form and appendages on the submarine drag. Corrections are developed and applied to extrapolate the model scale hydrodynamic results to a full scale submarine. The end result gives a speed of the hull form which is used to optimize the overall submarine. The basic measure of the overall effect of stern taper is the maximum speed of the submarine while keeping the same shaft horse power propulsion plant, the same volume and the same area requirements. The hydrodynamic powering efficiency is discussed and evaluated using a power coefficient. The resulting designs have marked differences in length but similar displacements and similar maximum speeds. The results promise great potential for the full stern submarine.

The Physical Object
Pagination67 leaves. ;
Number of Pages67
ID Numbers
Open LibraryOL25312172M
OCLC/WorldCa640482043

Concepts in Submarine Design (Cambridge Ocean Technology Series Book 2) - Kindle edition by Burcher, Roy, Rydill, Louis J.. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Concepts in Submarine Design (Cambridge Ocean Technology Series Book 2).Reviews: Naval Hydrodynamics Boundary Layer Stability and Transition, Ship Boundary Layers and Propeller Hull Interaction, Cavitation, Geophysical Fluid Dynamics Twelfth Symposium, Part 3 Posted on by juba. Category: Leave a Comment. SUBMARINE DESIGN-DRIVING CAPABILITIES DEFINITIONS This appendix provides short definitions of submarine capabilities that, in the view of submarine designers, are major design (and cost) drivers. • Burst speed: Maximum NR-2 sustainable speed for approxi-mately five hours. • Transit speed: Maximum NR-2 speed sustainable indefinitely. Details - Naval hydrodynamics boundary layer stability and ryhe 0 ,. Naval Hydrodynamics Boundary Layer Stability and Transition.

Boundary layer suction is a boundary layer control technique in which an air pump is used to extract the boundary layer at the wing or the inlet of an ing the air flow can reduce ements in fuel efficiency have been estimated as high as 30%. Circulation control systems need a relatively high amount of power to provide the necessary pressurized air. Hence major design paramters as slot height and additional blowing at the nose have been varied to improve the efficiency of the circulation control airfoil. The results show that a significant increase of the efficiency is possible. Boundary layer control on a cylinder. In the case of a freestream flow past a cylinder, three methods may be employed to control the boundary layer separation that occurs due to the adverse pressure gradient. Rotation of the cylinder can reduce or eliminate the boundary layer that is formed on the side which is moving in the same direction as. The design of the PORSCHE wind tunnels - two facilities, one in full- and the other in quarter-scale - was determined by the demand for simulating both passenger car models and racing vehicles. One peculiarity, the very low ride height of the latter requires a reduction of the oncoming boundary layer that develops along the test- section floor.

Journal of Mechanical Design; Journal of Mechanisms and Robotics; Journal of Medical Devices; Journal of Micro and Nano-Manufacturing; Journal of Nanotechnology in Engineering and Medicine; Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems; Journal of Nuclear Engineering and Radiation Science. Wind tunnel testing of an airfoil with a moving surface boundary-layer control. Ann Arbor, Mich., University Microfilms, UMI publication number Collation of the original: p. Thesis (masters)--King Fahd University of Petroleum and Minerals (Saudi Arabia), Carlson, Eric Bernard. In aeronautical engineering, boundary layer control (BLC) refers to a number of methods of controlling the boundary layer of air on the main wing of an aircraft. In doing so, parasitic drag can be greatly reduced and performance likewise. This Note reports the results of an experimental study of active flow control of boundary-layer separation with a novel phased-array dielectric barrier discharge (DBD) plasma actuator. The flow of interest is flow over the suction surface of a low-pressure turbine (LPT) airfoil: specifically, the “Pak-B” airfoil that was the subject of many.

Submarine design optimization using boundary layer control by Christopher L. Warren Download PDF EPUB FB2

Optimization is done through boundary layer control analysis and through studies on the effect of blade loading magnitudes and profiles. Several hull form afterbody shapes are studied to improve the powering characteristics of a full stern : An illustration of an open book.

Books. An illustration of two cells of a film strip. Video An illustration of an audio speaker. Submarine design optimization using boundary layer control Item Preview SUBMARINE HULLS,BOUNDARY LAYER CONTROL,HULLS (STRUCTURES) Publisher Springfield, Va.: Available from National Technical Information.

Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering,and Thesis (M.S.)--Massachusetts Institute of Technology, Dept.

of Cited by: 1. Download Citation | Submarine design optimization using boundary layer control / | Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept.

of Ocean Engineering,and Thesis (M.S. Enter the password to open this PDF file: Cancel OK. File name:. DSpace @ MIT Submarine design optimization using boundary layer control Research and Teaching Output of the MIT Community.

Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection Submarine design optimization using boundary layer control. Warren, Chris L, Submarine Design Optimization Using Boundary Luyer Control, Naval Engineer's thesis, MIT Department of Ocean Engineering, Junealso Master's thesis.

This book explores. Rules for Classification and Construction III Naval Ship Technology 2 Sub-Surface Ships 1 Submarines Edition   As shown in Fig. 1, an optimization process consists of three sub-modules, i.e. a design variation, an evaluation of design alternatives and an optimization the optimization algorithm changes values of design variables, the design variation module passes the values to the CAD system (a parametric modeller) and the KB of the ES.

Some Aspects of Submarine Design Part 2. Shape of a Submarine Prof. Joubert1 boundary layer is tripped to turbulence the result will still represent a vast improvement 6 Design of the Sail 18 7 Control Surfaces 19 StabilityandControl.

19 8 Profile of The challenges faced by ThyssenKrupp Marine Systems, overcome by Flowmaster® By T. Zikofsky, ThyssenKrupp Marine Systems.

E ven today, building a submarine is still far removed from the design processes we know from the automotive engineering-scene. Partly on one hand, this is owing to the high number of integrated systems and parts and on the other hand because of the low numbers of boats.

Submarine Design 52 53 of the UMM. For example, a machine gun can be stowed in a UMM cartridge, which can then be raised to deploy the gun. The UMM concept has been adopted by new generation submarines such as the UK Royal Navy’s latest Astute-class submarines.

DESIGN fOR SPECIAL OPERATIONS fORCES The SOF form an important element of. The interplay between these aspects of design is given particular attention, and a final chapter is devoted to the generation of the concept design for the submarine as a whole.

Submarine design makes extensive use of computer aids, and examples of algorithms used in concept design are given. The emphasis in the book is on providing engineering. The procurement planning for high value assets, such as submarines, naval surface ships, aircraft, etc.

requires rigorous analysis to ensure that the operation of the platform and its sub-systems meet the capability requirements, based on measures of performance. Optimization on submarine stern design Mohammad Moonesun, Yuri Mikhailovich Korol, Hosein Dalayeli, Davood Tahvildarzade, Mehran Javadi, Mohammad Jelokhaniyan, and Asghar Mahdian Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 1, Journal of Guidance, Control, and Dynamics; Journal of Propulsion and Power; Journal of Spacecraft and Rockets; Journal of Thermophysics and Heat Transfer; Browse All Journals; Browse All Virtual Collections; Books.

AIAA Education Series; Library of Flight; Progress in Astronautics and Aeronautics; The Aerospace Press; Browse All Books; Meeting.

A multi-objective optimization framework is developed for design of submarine hull shape. Internal volume of the vehicle and its hydrodynamic drag are optimized by seamlessly integrating non-dominated sorting genetic algorithm and Reynolds averaged Navier–Stokes solver in a single code.

The methodology seeks a geometric shape with minimum drag and maximum volume satisfying the constraints on the geometric design parameters given by a 5-parameter formula that describes the submarine hull. A novel passive control scheme connecting the bound- ary layer control systems via a non-actuated by-pass channel is introduced and a conceptual preliminary implementation is tested with the promise of replacing conventional approaches of actively controlled systems to reduce the design complexity and vehicle weight.

Optimization is done through boundary layer control analysis and through studies onu applied to extrapolate the model scale hydrodynamic results to a full scale submarine. u through the naval surface warfare center (nswc), the nationalu Soejimacalculation of three-dimensional boundary layers around ship hull forms.

2. Warren, C.L.: Submarine design optimization using boundary layer control. Aau. Etd. 13(1), – (). Google Scholar. Design and Modeling of RC Submarine Mya Hnin Su, Aung Bhone Pyi Abstract Nowadays, RC (radio control) submarine can be used to do underwater monitoring.

In this project, the cost will be optimum and using an easy to obtain parts. The main things in the RC submarine. This is a first step toward flow control because, given smooth surfaces, other boundary-layer control techniques will become more efficient. Since the surface roughness of present submarines is about microns, the challenge is to identify and develop materials with the desired smoothness that are inexpensive to produce, apply, and maintain.

The work was broken down in three parts: â ¢ selection and development of a boundary layer control method using CFD â ¢ design and fabrication of the experimental set up â ¢ tests in the GTH and analysis of measurements (mean and turbulent flow, steady and unsteady forces on the propeller) BOUNDARY LAYER AND WAKE CONTROL Several methods.

Boundary layer control refers to methods of controlling the behaviour of fluid flow boundary layers. It may be desirable to reduce flow separation on fast vehicles to reduce the size of the wake (streamlining), which may reduce drag.

Boundary layer separation is generally undesirable in aircraft high lift coefficient systems and jet engine intakes.

Submarine Design Group Two Friday October 14th. Fluid Mechanics Submarine Design 1 | P a g e affecting the resistance are discussed including the boundary layer, laminar flow, transition, turbulence and separation and how the flow should be as quiet and smooth as possible.

Added resistance from sails, snorkels and appendages need. Laminar Boundary Layer Submarines Boundary Layer Control Wave Drag Hydrodynamics gaged in analysis, development, and evaluation of hydrodynamic design criteria for submersible vehicles. Boundary-layer control—including it provides a systematic and efficient approach to the optimization of low-drag design.

the boundary layer, laminar flow, transition, turbulence and separation and how the flow over the principle passive sonar should be as quiet and smooth as possible.

Added resistance from sails, masts, snorkels and appendages need careful streamlining and attention in design. A proposed profile of a new submarine is presented which has the.

II, the United States submarine force capitalized on many technological advances in submarine construction and powering, as well as development of sonar and radar, to allow the boats to travel faster, deeper, and remain undetected by the enemy. The U.S. submarine force, which accounted for about two percent of the fleet, destroyed 1, Once submerged, a World War II vintage submarine was severely limited in its options.

With the exception of the late-war German Type XXI and Type XXIII, capable of a submerged speed of 16 to 18 knots, and the even more sophisticated Japanese I class, which could manage 19 knots submerged, and none of which had any significant effect on the war, World War II submarines were limited to a.

design code. Optimization is done through boundary layer control analysis and through studies on the effect of blade loading magnitudes and profiles.

Several hull form afterbody shapes are studied t o improve t h e powering characteristics of a full stern submarine.Laminar boundary layers can be loosely classified according to their structure and the circumstances under which they are created. The thin shear layer which develops on an oscillating body is an example of a Stokes boundary layer, while the Blasius boundary layer refers to the well-known similarity solution near an attached flat plate held in an oncoming unidirectional flow and Falkner–Skan.This book contains the papers presented at the West East High Speed Flow Fields (WEHSFF_) conference held in Marseilles (France) during the period April This conference was in connection with the third European FloWnet (Flow Library Over the Web network) data base workshop.