38 Result(s)
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Article
Hong**a Liu
Engineering Thermodynamics, Heat and Mass Transfer
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Article
Flow field calculations for afterburner
In this paper a calculation procedure for simulating the combustion flow in the afterburner with the heat shield, flame stabilizer and the contracting nozzle is described and evaluated by comparison with exper...
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Characteristics pertinent to propagation of pulsating pressure in the channels of turbine machines
A new model describing the propagation of the pressure pulsations in the intricately shaped channels of turbine machines is presented. The proposed model was successfully used to analyze two emergency events: ...
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Article
Design schemes and comparison research of the end-effector of large space manipulator
The end-effector of the large space manipulator is employed to assist the manipulator in handling and manipulating large payloads on orbit. Currently, there are few researches about the end-effector, and the e...
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Article
Coupled dynamic modeling of rolls model and metal model for four high mill based on strip crown control
The crown is a key quality index of strip and plate, the rolling mill system is a complex nonlinear system, the strip qualities are directly affected by the dynamic characteristics of the rolling mil. At prese...
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Analysis of wear mechanism and influence factors of drum segment of hot rolling coiler
Because the work environment of segment is complex, and the wear failures usually happen, the wear mechanism corresponding to the load is a key factor for the solution of this problem. At present, many researc...
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Effect of electrical current on the tribological behavior of the Cu-WS2-G composites in air and vacuum
As the traditional graphite-based composites cannot meet the requirement of rapid develo** modern industry, novel sliding electrical contact materials with high self-lubricating performance in multiple envir...
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Article
Adsorption removal of arsine by modified activated carbon
The modified activated carbon adsorbents were prepared by impregnation method for removal of arsine (AsH3). The results show that the activated carbons modified with sulfonated cobalt phthalocyanine (CoPcS) and C...
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Strip layer method for analysis of the three-dimensional stresses and spread of large cylindrical shell rolling
As the traditional forging process has many problems such as low efficiency, high consumption of material and energy, large cylindrical shell rolling is introduced. Large cylindrical shell rolling is a typical...
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Critical state behaviors of a coarse granular soil under generalized stress conditions
Critical state line (CSL) is the central concept in soil mechanics. A series of true triaxial compression tests under the constant- $${...
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Numerical investigation of the effects of ITD length on low pressure nozzle
The advantage of high efficiency, low SFC (Specific Fuel Consumption), ultra-high bypass ratio turbofan engine attracts more and more attention in modern commercial engine. The intermediate turbine duct (ITD),...
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Article
Flow development through HP & LP turbines, Part II: Effects of the hub endwall secondary sealing air flow on the turbine’s mainstream flow
Although many literatures have been focused on the underneath flow and loss mechanism, very few experiments and simulations have been done under the engines’ representative working conditions or considering th...
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Flow development through HP & LP turbines, Part I: Inward rotating cavity flow with superimposed throughflow
With the aid of numerical method, both flow field and its accompanied loss mechanism within the rotating cavity are investigated in detail in the 1st part of the two parts paper. For ease of comparison, rotating ...
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Numerical investigation of the effects of rising angle on intermediate turbine duct and nearby turbines
In order to improve the efficiency, ultra-high bypass ratio engine attracts more and more attention because of its huge advantage, which has larger diameter low pressure turbine (LPT). This trend will lead to ...
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Article
Lagrangian flow visualization of multiple co-axial co-rotating vortex rings
This paper, for the first time, experimentally observes the detailed interacting phenomena of multiple co-axial co-rotating vortex rings using the method of finite-time Lyapunov exponent field. Besides the mos...
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Article
Effect of Various Retrogression Regimes on Aging Behavior and Precipitates Characterization of a High Zn-Containing Al–Zn–Mg–Cu Alloy
In the present work, the influence of various retrogression treatments on hardness, electrical conductivity and mechanical properties of a high Zn-containing Al–Zn–Mg–Cu alloy is investigated and several retro...
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Article
Influence of Reynolds Number on the Unsteady Aerodynamics of Integrated Aggressive Intermediate Turbine Duct
The ultra-high bypass ratio turbofan engine attracts more and more attention in modern commercial engine due to advantages of high efficiency and low Specific Fuel Consumption (SFC). One of the characteristics...
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Article
Trajectory modes and wake patterns of freely falling plates
The free falling of a plate is an interesting and canonical problem in the study of fluid–body interactions. In this paper, experiments with a wide range of the dimensionless moment of inertia ( ...
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Numerical simulation and experimental investigation on spray cooling in the non-boiling region
In this study, numerical simulation and experimental investigation were conducted with distilled water as the test liquid to study the spray cooling heat transfer characteristics in the non-boiling region. The...
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Experimental study on the boiling criterion of the fuel film formed from spray/wall im**ement
The vaporization of the fuel film after spray/wall im**ement dramatically affects the combustion and emission behaviors in engines. In this study, the formation and vaporization characteristics of the fuel f...
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Article
An objective-adaptive refinement criterion based on modified ridge extraction method for finite-time Lyapunov exponent (FTLE) calculation
Visualizing finite-time Lyapunov exponent (FTLE) efficiently and accurately has long been a research objective in identifying the coherent structures of turbulence or vortex flows. In this field, adaptive mesh...
