Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) was originally founded in 1959. The publisher of the journal is Wuhan University of Technology. JWUT first got the scopus license in the year 2001. The journal generally publishes all aspect of engineering sciences like: physics, chemistry, mathematics, and all sorts of general engineering.
Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) (ISSN:2095-3844) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are in the following fields but not limited to: :
Proton Exchange Membrane Fuel Cell (PEMFC) has been recognized to be the potential source for future vehicles due to environmentally friendly. Supplying hydrogen for mobile vehicles is becoming of interest since storing compressed hydrogen in the bottle is not only dangerous but also energy consuming. One way to overcome the drawback is by performing the ethanol steam reforming in situ. In this way, microreactor offers the potential benefit to convert ethanol to hydrogen due to very fast mass and heat transfer. Fluid dynamics inside the microreactors and the kinetic aspects for ethanol steam reforming using Pt/Al2O3 catalyst were investigated with aim to determine the proper microreactor design having uniform fluid distribution and to study the influence of reaction temperature, fluid velocity, and reactor length. It was found that placing an obstacle inside the microreactors in certain position gave more uniform distribution of fluid flow. The reaction temperature and fluid velocity showed their influence on hydrogen productivity.
Marine engines often use diesel as an alternative fuel to improve the economy. In recent years, waste oil, biodiesel and alcohol fuel are the most famous research directions among the alternative fuels for diesel. With the rapid development of the shipping industry, the air of coastal areas is becoming increasingly polluted. It is now necessary to reduce the emission of marine engines to meet the strict emission regulations. There are many types of alternative fuels for diesel oil and the difference of the fuel may interfere with the engine emissions; however, PM, HC, CO and other emissions will have a negative impact on SCR catalyst. This paper reviews the alternative fuels such as alcohols, waste oils, biodiesel made from vegetable oil and animal oil, and then summarizes and analyzes the influence of different alternative fuels on engine emissions and pollutant formation mechanism. In addition, this paper also summarizes the methods that can effectively reduce the emissions of marine engines; it can provide a reference for the study of diesel alternative fuel and the reduction of marine engine emissions.
The repeated ice floe impact events on polar ships and offshore structures are very common in ice region. The accumulated plastic deformation of structures under repeated ice impact loadings reflects directly the damage conditions in the structures and is thus an important and convenient parameter in engineering assessment. The aim of this paper is to study the dynamic responses of steel plates subjected to repeated ice impacts based on the experimental and numerical methods. The laboratory repeated impact tests between the steel plates and fresh water ice wedges were carried out by using horizontal impact test machine. For each ice impact test, the collision forces and plastic deformations of steel plates were investigated. Besides, the finite element simulations are conducted to estimate the accumulated plastic deformations of steel plates under repeated ice impacts, which show good agreement with experimental results. Moreover, the energy dissipation of ice and the energy absorption of plate in each ice impact are studied based on numerical results, and the energy criterion of pseudo-shakedown phenomenon has been re-examined for steel plate under identical repeated ice impacts. This paper analyses the plastic deformation accumulation and energy-sharing mechanisms of steel plates subjected to repeated ice impact loadings, which can provide useful information for the evaluation of the structural safety of ice-classed ships.
In this paper are presented experimental analyses of the behaviour of 316L stainless steel in regard to fracture, according to standard methods of investigation on modified tensile C(T) specimens. The S316L alloy is selected for this experimental analysis, often used in many engineering applications. This alloy is not prone to corrosion as other austenitic steels with a higher share of carbon. Results show that material behaviour, in terms of dependence of stress intensity factor (SIF) value relative to thickness of the plate, is necessary to assume with a different model when the specimen thickness is very small. Application of standards in the field of investigation of material resistance to fracture allow simultaneous determination and connection of several fracture mechanics parameters.
Wind tunnel tests have been widely applied in aerodynamic investigations owing to their unique advantages. However, it is difficult to theoretically establish a simplified symmetry or two-dimensional model because of the relative motion of the structures and proximity of the train to the ground/infrastructure. Additionally, railway-related aerodynamic problems tend to be more challenging than those encountered in other engineering structures. Moreover, transient and crosswind effects, as well as complex operation environments, need to be considered, thereby making aerodynamic analyses of train–bridge systems challenging. Advanced manufacturing methodologies can reproduce realistic scenarios of high-speed train (HST) operations in a wind tunnel. The development of a controllable and affordable experimental method presents considerable research opportunities and challenges. There exists a strong correlation between wind tunnel experimental methods and the understanding of aerodynamic mechanisms, and some wind tunnel tests are dedicated to identifying the aerodynamic behavior using specific test systems. This study mainly describes the types of tests typically performed in a wind tunnel to analyze the aerodynamic issues of train–bridge systems under wind action. To identify and understand the individual role of the above mentioned-correlated systems, trains and bridges in wind tunnel tests are described separately. High-speed trains on bridges must be made safe and environmentally friendly, and a few cases are presented as indications to reconsider our aerodynamic research priorities. Thus, advanced experimental activities have been proposed in the Central South University (CSU) wind tunnel, representing helpful practices in defining the real-world aerodynamic behavior of wind-vehicle-bridge systems.
To solve the frequent urban flood problems, Sponge city, a novel city strategy-Sponge City, is a kind of water resource management strategy and method, which can adapt to the changes of rainwater like a sponge, so as to reduce the occurrence of flood problems. This paper reviewed the initiative and development of sponge city. It analyzed the problems faced by sponge city construction and possible solutions. In addition, pavement material was an important part of sponge city construction. This paper also reviewed the application and development of pavement materials in sponge city. Firstly, the commonly used permeable pavement materials were introduced including permeable asphalt concrete, permeable cement concrete, permeable brick, and novel pavement materials. To meet the requirements of “infiltration, retention, purification, evaporation, and drainage”, the pavement materials were designed to be porous. The pore characteristics were studied, including but not limited to porosity and pore size, etc. In addition, environmental assessment and economic analysis were conducted. It was found that the permeable pavements were not necessarily more environmentally friendly than traditional pavement, but they did have some obvious benefits such as water purification, traffic noise reduction, Urban Heat Island (UHI) mitigation, and waste materials recycling. There was a controversy about whether permeable pavements were more economical than traditional pavements. Finally, this paper looked forward to the future development of pavement materials in sponge city, which called for better hydrological performance and wider application range.
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/Journal of Wuhan University of Technology (Transportation Science and Engineering)