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Based on the three-dimensional physical model of shell and tube heat exchanger, by means of computational fluid dynamics (CFD) software, the RANS k-Epsilon turbulent model and the Mixture model were adopted to simulate the flow properties and heat transfer in the shell side. And the reliability of the...

This study aims to determine the effect of the use of E-learning on the competence of doing work using a lathe on students of Mechanical Engineering Education UNNES. The type of E-learning used is Google Classroom which is a product of Google for Education. In addition to knowing the effect on student...

This research aims to develop Social Studies learning model based socio-cultural based on content with blended learning in junior high schools in the city of Depok West Java using the research and development method by taking three main steps, namely preliminary studies, planning and preparation of models...

This study aims to determine the extent to which employees experience Work Stress, coupled with the Covid-19 Pandemic that is hitting Indonesia. To find out and control the employee’s Work Stress, use an online workshop on Stress Management caused by the Covid-19 Pandemic. The research method used in...

This study aims to obtain an overview of the cell cognitive diagnostic assessment (CCDA) instrument that has been developed from a small group testing point of view. There are 20 multiple choice questions that have been developed with five alternative answer choices. These questions consist of four topics,...

In electoral competitions, voter behavior research is conducted to develop effective campaign strategies, but survey methods tend to be expensive. By contrast, in the internet era where political campaigns evolve by using digital data and channels, Google Trends offers free services that display search...

When creating artificial 3D natural scene, the terrain is complicated and working quantity is huge, relying on traditional modes for field investigation, mapping and modeling usually needs to consume rather quantity of manpower, material resource, financial resources and vigor. Rapid interception method...

In this article,we take the Kariba Dam as an example and analyze the number and location of new small dams in detail through Exponential estimation method and Gray Analytic Hierarchy Process. Then,we set up a model and put forward the concrete strategy of regulating water flow. We firstly make a simple...

Using commercial software CFD (Computational Fluid Dynamics) analysis of fluid to simulate the H-Boat. Based on the numerical methods, use the VOF (volume of fluid) method to simulate the free surface, and use RNG (Renormalization-group) model to close RANS (Reynolds Average Navier-Stokes) equations...

Online learning is a learning way to use online education platform for learners. It could let the learners start learning at anytime from anywhere by removing the traditional education's time and space limit. As the online learning style becomes more and more popular, its main base environment has gradually...

Rarefied gas effects have to be considered when doing the research and design of hypersonic flight vehicle in near space, in which accurate prediction of flow field and surface properties such as pressure, shear stress and heat flux are needed. Research on the mechanism of hypersonic slip flow must consist...

Key problems in view of the urgent long-endurance uav, the research of the application of bionics to no one wing design. With the wings of a certain unmanned aerial vehicle as the research object, is good at gliding gull for bionic prototype. Design imitation airfoil seagull flat wings and wing tip winglet...

With the shortage of water resources in China, water-saving agriculture has been highly addressed and developed by the government. This paper studies the channel structure of a helical micro pressure drip irrigation emitter, focusing on the tilt and tooth chamfer’s angles within eight different combinations...

For a new diesel engine cylinder head, an assembled finite element model, consisting of cylinder head and cylinder block, is constructed in the present work. By using computational fluid dynamics (CFD) analysis and fluid-solid coupling method, the flow distribution of the water jacket is achieved, as...

The paper analyzed the flow of the diameter of 72mm twin screw extruder screw-type’s field measurement from some machinery co., LTD by FLUENT software. Firstly, through established the flow channel of three-dimensional entity model by Gambit, defined the boundary and completed the meshing simultaneously....

In order to cope"Guidelines for voluntary use of Energy Efficiency Operational Indicators( EEOI)", a simple method of adjusting ship trimming of a voyage has been attempted,which can minimize the energy consumption and economize cost.A method of ship dynamic trimming optimization base on loading computer...

Based on OpenGL and Google library we established the target model library and the canny operator is used for edge detection. Combined with D-S evidence theory and Pseudo-Zernike moments, the air target recognition algorithm based on information fusion is proposed. Pseudo-Zernike moments are invariant...

Basing on scene analysis and VaR calculation, this paper discussed system architecture of scenario calculation and accurate data's importance of system model from the view of system theory. We also discussed several kinds of data errors and their processing methods to avoid the error of data. Then we...

This article takes the non-bearing wall cast-in-place process as the research object, making comprehensive use of CFD analysis methods, CAE technology, ANSYS Gambit and Fluent software. the flow field simulation was carried out in the mixing section and the grouting process in the pouring wall process....