169 Result(s)
within
**hong Hu
Engineering
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Chapter and Conference Paper
Unsteady Field Element Method with Embedded Euler Domain for Transonic Pitching Airfoil Flows
An equation zonal scheme for unsteady transonic flow computations has been developed. In this scheme, the unsteady Euler equations in a moving frame of reference are solved in a small embedded domain (inner do...
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Chapter and Conference Paper
Unsteady Three-Dimensional Transonic Flow Computations Using Field Element Method
An unsteady field element (or called, integral equation) scheme for solving the full-potential equation has been developed for unsteady transonic wing flows. The unsteady full-potential equation is formulated ...
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Article
Development of a shock-fitting field-panel method for 3D transonic flows
The paper presents the development of a shock-fitting field-panel method for three-dimension (3D) transonic flows. In this method, the full-potential equation, written in the form of the Poisson's equation, is...
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Article
Rheological testing and modelling of fresh high performance concrete
The rheological behaviour of fresh high performance concrete was investigated by use of a coaxial cylinder viscometer (BML Viscometer). After a series of experiments it was observed that the equipment used was...
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Chapter and Conference Paper
MPP Implementation and Computational Performance Study of 3D Source Panel Method
Computer with massively parallel processors (MPPs) may provide orders of magnitude improvement in computational performance in a near future over today’s fastest conventional vector supercomputer. The MPP comp...
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Article
Slow drift dam** force acting on a horizontal cylinder
The hydrodynamic forces acting on a circular cylinder and a rectangular cylinder undergoing slow drift oscillation in regular waves were investigated experimentally and numerically. Forced oscillation tests wi...
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Article
Validation of BTRHEOM, the new rheometer for soft-to-fluid concrete
An investigation was performed on the objectivity of a new rheometer for soft-to-fluid concrete, called BTRHEOM. Firstly, the influence of concrete wall friction on the measurement of the Bingham constants was...
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Chapter
On The Stability of Control Systems Having Clegg Integrators
In this paper, we consider control systems utilizing so-called Clegg integrators. A Clegg integrator is a linear integrator with reset mechanism whose describing function
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Article
Simulation of temperature distribution of point contacts in mixed lubrication
The numerical simulation of temperature distribution of point contacts in mixed lubrication is presented. The calculating includes two steps. First, temperature rises on two surfaces are obtained by a temperat...
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Article
Modeling sediment transport in the lower Yellow River and dynamic equilibrium threshold value
A major problem in the lower Yellow River is the insufficient incoming water and excessive sediment supply, which results in serious deposition, continuous rise of the river bed, and austere flood control situ...
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Article
A pseudofield model approach to simulate compartment-fire phenomena for marine fire safety design
In order to prevent the spread of marine compartment fires, it is necessary to understand the governing factors or characteristics of fire-spread phenomena. We present a pseudofield model approach to this prob...
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Article
A CIP-based method for numerical simulations of violent free-surface flows
A CFD model is proposed for numerical simulations of extremely nonlinear free-surface flows such as wave impact phenomena and violent wave–body interactions. The constrained interpolation profile (CIP) method ...
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Article
Close-loop system identification using over-sampling scheme and its estimate accuracy analysis
A new identification method for a linear discrete-tune closed-loop system is proposed based on an output over-sampling scheme When the system outputs are over-sampled the new output sequences would contain mor...
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Article
Numerical simulation of violent sloshing by a CIP-based method
In this article, a new computational fluid dynamics simulation approach based on the constraint interpolation profile (CIP) method is applied to tackle the violent sloshing problem. The present study considers...
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Article
Cranny density parameters and porosity measured by elastic wave method in quasi-isotropic cranny rock masses
According to the characteristic of elastic waves propagation in medium and the application of elastic waves method in rock mass engineering, the cranny mass with random crannies was regarded as quasi-isotropic...
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Chapter and Conference Paper
Experimental Study on the Interaction of Wedge’s Pickup Capability in Gap-pickup Diagonal Flow Ventilation System
The rotor windings of large generator are usually cooled by hydrogen flowing through ducts within the winding. The gap-pickup diagonal flow ventilation system has been widely employed because of its shorter co...
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Article
Analysis micro-mechanism of burrs formation in the case of nanometric cutting process using numerical simulation method
Burrs (exit failure), being one of the important factors influencing the final precision of workpiece, have been widely studied. Today, with the development of manufacturing technology, the depth of cut falls ...
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Chapter and Conference Paper
A CFD Approach for Extremely Nonlinear Wave-Body Interactions: Development and Validation
A CFD approach for extremely nonlinear free surface problems is described. The algorithm is based on the CIP method and the multi-phase computations on wave-body interactions are carried out on a Cartesian gri...
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Article
AS/RS based yard and yard planning
In this paper, we apply the split-platform automated storage/retrieval systems (SP-AS/RSs) (Hu et al., 2005) to store containers in the yard to improve the yard performance and to increase the utilization of the ...
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Article
Non-Rigid Ultrasound Image Registration Based on Intensity and Local Phase Information
A non-rigid ultrasound image registration method is proposed in this work using the intensity as well as the local phase information under a variational framework. One application of this technique is to regis...
