Results 211 to 220 of about 14,268 (264)

An Advanced VOF Algorithm for Oil Boom Design

International Journal of Modelling and Simulation, 2006
In this paper, an accurate interface convection technique based on the volume-of-fluid (VOF) scheme is presented and the concepts of interface basis and three types of fluxes are introduced to handle two-layer fluid flow in complex geometric situations. The scheme was tested and the results proved to be accurate.
J. Fang, K.-F.V. Wong
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Sonic Boom Minimization Revisited: The Robustness of Optimal Low-Boom Designs

13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference, 2010
This paper will review the currently-accepted theory of sonic boom prediction and minimization and will propose a new modified approach that overcomes some of the limitations of the classical theory. In particular, the new approach differs from the classical theory of Jones, Seebass, George, and Darden in that: (1) it generalizes the parameterization ...
Michael Colonno, Juan Alonso
openaire   +1 more source

Research on a sonic boom evaluation and low-boom and low-drag design

The Journal of the Acoustical Society of America, 1998
Kawasaki Heavy Industries, Ltd. has been researching on a sonic boom since 1990 toward the development of the next-generation SST (super sonic transport). A small chamber where a similar-sonic-boom could be created was made in 1993, and over 200 tests were carried out to see the reaction of people inside the chamber.
Kenjiro Inagaki, Ayano Yamamoto, Hirokage Ogoshi, Kenji Hayama, Kenji Sakai   +4 more
openaire   +1 more source

Design of aluminium boom and arm for an excavator

Journal of Terramechanics, 2010
Abstract The aim of this work is to study the boom and the arm of an excavator in order to replace the material, which they are usually made of, with another material. In particular, the study wants to substitute the steel alloy for an aluminium alloy.
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Costume Design of Boom

2013
The purpose of this thesis is to provide all of the paperwork, supporting research, renderings, and production photographs that document the costume design for Boom at the Woolly Mammoth Theatre Company in Washington DC. This thesis contains the following: research images collected from a variety of sources to help develop the design for the show and ...
openaire   +2 more sources

Design Factors for Hydraulic Crane Booms

SAE Technical Paper Series, 1969
<div class="htmlview paragraph">Hydraulic crane boom design factors, such as loading, weight, extension method, and configuration are discussed with special emphasis on the practical aspects of their effect on mobility, lifting capacity, and boom length.
L. W. Livengood, N. C. Hargreaves, G. C. Noll, R. J. Bushong   +3 more
openaire   +1 more source

Control boom design of Z-SAT

Modeling and Simulation Technologies Conference, 2000
Z-SAT uses passive gravity-gradient, along with active magnetorquer stabilization methods to control of attitude. To modify the ratios of moments of inertia, control boom has been selected. It is a deployable mechanism. Several restrictions, such as stability, strength, and thermal distortion, have been considered to optimum design.
K. Daneshjou, A. Alasty, S. Rezaei
openaire   +1 more source

Oil Spill Boom Design for Waves

Spill Science & Technology Bulletin, 2003
Abstract The objective of this research was to design and test boom arrangements that will be able to function effectively in the presence of waves and turbulent conditions and be modular and free floating. The designs were based on the principle that fluid particles in waves traverse in a circular pattern, so it was imperative to take advantage of ...
Kau-Fui Vincent Wong, Hugh O Stewart
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Concept Design of Deployable Isogrid Booms

52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, 2011
This paper describes concepts of deployable open isogrid booms that may enable the development of space structures such as solar sails and large antennas to dimensions of hundreds of meters. The paper examines previous efforts funded by NASA developing deployable isogrid booms and describes their limitations.
openaire   +1 more source

Approximation of Off-Body Sonic-Boom Analysis for Low-Boom Conceptual Design

Journal of Aircraft, 2016
The conceptual design of a low-boom and low-drag supersonic aircraft remains a challenge despite significant progress in recent years. Inverse design using reversed equivalent area and adjoint methods has been demonstrated to be effective in shaping the ground signature propagated from computational fluid dynamics off-body-pressure distributions ...
Irian Ordaz, Wu Li
openaire   +1 more source