Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 103 for “"model tests"”.
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Large-scale two-dimensional black caving model tests
Bibliography: pages 222-234.
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Small-model tests of the "Lucy Ashton" and correlation with full size resistance
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Naval Architecture and Marine Engineering, 1953.
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Structural Behavior and Design Implications of Concrete Tunnel Linings Based on Model Tests and Parameter Studies
The objective of this study was to investigate the structural behavior of concrete tunnel linings at ultimate and service loads (with the emphasis on subway tunnels), taking into account soil-structure interaction and the nonlinearity of the concrete. The conclusions drawn could serve as the basis …
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A study of the accuracy of the Penning trap mass spectrometer ISOLTRAP and Standard-Model tests with superallowed beta decays
… zu leisten, die ein Axiom des Standard-Modells ist. Es wurde außerdem dazu verwendet, berechnete Parameter, die für zukünftige noch strengere Tests benötigt werden, auf ihre Richtigkeit hin zu überprüfen.
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The field testing of a vortex sewage overflow.
… its design being based on the results of model tests. The project described has been involved in monitoring this prototype with the aims of i) Assessing its hydraulic performance, ii) Assessing its ability to retain polluting material, particularly large 'gross solids' in the sewer, iii) …
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Numerical Simulation of Surface Effect Ship Air Cushion and Free Surface Interaction
… dynamics simulations of surface effect ship model tests. The model tests being simulated are of a generic T-Craft model running in calm seas through a range of Froude numbers and in two head seas cases with regular waves. Simulations were created using CD-adapco's STAR-CCM+ and feature …
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Hydrodynamic behaviour of gliding hydrofoil crafts
… our understanding on hydrodynamics of GHC, both model tests and numerical investigations are presented. To study its hydrodynamic characteristics, model tests are carried out in a towing tank, and the total resistance, trim angle and wetted area of the craft in the cases with different Froude …
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The performance of pipeline ploughs
… sand is investigated by means of physical scale model tests. Scale model tests are the most practical method by which to conduct a parametric study on plough behaviour as full sized testing would be prohibitively expensive. Scale model tests also provide accurate control of sand conditions which …
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Numerical Simulation of Surface Effect Ship Characteristics and Dynamics
… work presented here attempts to replicate the model tests involving a generic surface effect ship and demonstrate the value of numerical simulations in understanding air cushion vehicles. The model tests consist of a surface effect ship running through a range of Froude numbers in calm seas and …
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Electrokinetic Dewatering of Oil Sands Tailings
… of MFT, a man-made geomaterial. Two series of tests were conducted in this study. In the first series, four EK cell tests were performed on oil sands tailings to measure the electroosmotic permeability, ke, along with other parameters, such as the EK induced water flow rate, electrical …
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Stress disturbance on the cyclic behavior of soils and its impact on geotechnical structures
… loading, a large number of cyclic triaxial tests were carried out to investigate the cyclic deformation behavior of typical sand and clay samples. The tests on clay are performed under undrained condition to reveal the axial strain and excess pore water pressure accumulations, and the tests …
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The Response of Buildings to Excavation-Induced Ground Movements
The results of physical model tests and field observations are combined with the results of parametric studies, and together they are used to provide a background for developing guidelines for controlling building damage and to develop a procedure for estimating building damage due to …
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Side channel spillways
… give a concise account of the existing theories. Model tests were carried out on a side channel spillway of general type, as well as on the proposed Mtata dam spillway and the results are presented and discussed. Charts were drawn up and a procedure was recommended for the design of side channel …
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Non-linear rolling of ships in large sea waves
… a very stable platform, while observations in model tests show a ship that is prone to extreme roll transients. This thesis examines a simple method of producing a non-linear simulation of roll motion using a tumblehome hull provided by the Office of Naval Research. This research demonstrates …
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Hot flow testing of multiple nozzle exhaust eductor systems.
Hot flow model tests of multiple nozzle gas turbine exhaust eductor systems were conducted to evaluate the temperature effects of several eductor design modifications. A one-dimensional analysis of a simple eductor system based on conservation of momentum for an incompressible gas was used in …
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Geotechnical centrifuge model testing for pile foundation re-use
… described in this thesis, using centrifuge model testing, describes how the existing pile foundations in overconsolidated clay are likely to behave when their loading conditions are changed by unloading caused by demolition and subsequent reloading. This is done with the view to re-use the …
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Investigations of Pile Foundations in Brownfields
… of installation. The results of large scale model tests and Finite Element studies are presented. The investigation indicates the possibility of contamination only in selected cases of piles.
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Estudo do comportamento de lastros de materiais granulares sobre estacas com capitéis através de modelos reduzidos
… has been evaluated with the aid of a small scale model: critical thickness of the base in relation to pile spacing and cap diameter, density and grain size distribuition of the granular material, external pressure, and two - and three - dimensional effects. The behaviour observed in the model were …
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The instability of axial-symmetric gravity-capillary waves generated by a vertically-oscillating sphere
… instability phenomena widely seen in lab model tests such as sloshing, ship model wakes measurements, etc. Despite its fundamental importance, the mechanism that governs the occurrence of this phenomenon is still unknown. The objective of this thesis is to understand the mechanism of this …
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Inlet model testing facility preparation, injector calibration and preliminary testing of two two-dimensional inlet models at high incidence angles to study internal flow separation
… incidence angles for two two-dimensional inlet models is presented. A description of the inlet testing facility includes the injector (which serves to drive the air through the inlet model), its control system, and the Virginia Tech 6-foot subsonic wind tunnel. The geometry of the two inlet …
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