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pro vyhledávání: '"C. K. B. Lee"'
Autor:
C. K. B. Lee, M. Giltrud
Publikováno v:
Shock Waves. 5:275-285
The accuracy of four industrial shock hydrodynamics codes for blast environments in baffled systems is evaluated based on the shadowgraph data of Reichenbach and Kuhl (1992,3). Both problems involve a planar shock passing through a baffled channel. T
Publikováno v:
Measurement Science and Technology. 6:853-859
Signatures of the first three modes of stress wave propagation in a Hopkinson bar, given by the Pochhammer-Chree solution a century ago, are derived from a set of recent experiments. The data suggest that, at frequencies at which multiple theoretical
Autor:
James M. McDonough, C. K. B. Lee
Publikováno v:
Journal of Computational Physics. 117:289-299
The Engquist filter is implemented within the one-dimensional Lagrangian gas dynamics code HAROLD. The conservation version and the total variation diminishing version of the filter are combined as proposed in the original paper, with filtering perfo
Autor:
R C Crawford, C K B Lee
Publikováno v:
Measurement Science and Technology. 4:931-937
A new method is developed for analysing dispersed stress (or strain) signals from a Hopkinson bar. In this method the incident signal is written as a rectangular-windowed Fourier series. It treats dispersion by accounting for both the time-of-arrival
Autor:
Ivan Catton, C. K. B. Lee
Publikováno v:
Multiphase Science and Technology. 6:471-519
Autor:
C. K. B. Lee
Publikováno v:
Emerging Technology in Fluids, Structures, and Fluid Structure Interactions: Volume 2, Dynamics of Explosive Detonation, Materials and Structures, Structural Mechanics and Design.
The main challenge of this project is to determine whether the state-of-the-art hydrocode (MAZ) can accurately predict the blast loads on a simple open structure. The structure being considered is a 30’ × 30’ square slab raised to an elevation o
Autor:
C. K. B. Lee, Raymond P. Daddazio, Darell Lawver, Michael Stanley, Gwang Jin Oh, Allan B. Pifko
Publikováno v:
Applied Mechanics and Biomedical Technology.
The threat of terrorist attack against civil infrastructure in the US and other countries has led to the need to better understand the response of structures and structural components to an impulsive air blast overpressure. One scenario that is prese
Autor:
C. K. B. Lee, S. L. Ridgway
Publikováno v:
Journal of Solar Energy Engineering. 105:181-186
The present experiments have demonstrated that water droplets (∼200-μm dia) can be lifted to substantial heights (∼50 m) by their own vapor produced in flashing over temperature differences typical of the tropical seas. The coupling between the
Publikováno v:
Physics of Fluids. 29:2843-2846
The Grassberger–Procaccia dimension is determined from pressure and temperature measurements in a pool of water agitated by steam injection. For this complex flow system, three distinct values of dimension ranging from ∼4.2 to ∼8.0 (correspondi
Autor:
C. K. B. Lee, C. K. Chan
Publikováno v:
Proceeding of International Heat Transfer Conference 7.
A complete cycle of the periodic steam chugging phenomenon is analyed. Steam velocity and pressure variations in the vent are described by one-dimensional conservation equations. This is coupled either to the water slug model when water is in the ven