Axisymmetric model

This study evaluated the application of the traditional oil-flow-visualization technique in determining skin-friction fields for surface flow of an axisymmetric afterbody model at lowspeed conditions. Oil liquid, which was mixed of kerosene, titanium dioxide and oleic acid, was painted on the surface of model before experimental process.

11p viengels 25-08-2023 5 2   Download

In this study, the flow behavior and drag of the axisymmetric model at subsonic and supersonic speeds were investigated by a numerical approach. The numerical results were validated with previous experimental results to determine the model's accuracy.

10p vihassoplattner 04-01-2022 14 1   Download

In this study, single-pixel ensemble correlation algorithm was applied to analyze flow near the surface of an axisymmetric boattail model. The initial images data was obtained by experimental methods with the setup of PIV measurement.

15p cothumenhmong11 05-05-2021 19 1   Download

Ground improvement technique by prefabricated vertical drain (PVD) in combination with vacuum preloading is widely used to facilitate consolidation process and reduce residual settlement. However, this technique seem hardly be estimated by both analytical method and numerical method because it has complex boundary conditions (such as vacuum pressure changing with time). Moreover, lateral displacements caused by this technique are also significant problem.

18p chauchaungayxua1 03-12-2019 42 0   Download

(bq) the book provides a brief but comprehensive listing of derivations for users to avoid the "cookbook" approach many books take. numerous illustrations provide a visual interpretation of the equations used, making the text appropriate for diverse learning styles. the approach is designed to allow for use of calculators and computers throughout, and to show the ways computer analysis can be used to model problems and explore "what if?" design analysis scenarios.

235p bautroibinhyen20 06-03-2017 38 2   Download

The PLAXIS 2D program is a special purpose two-dimensional finite element program used to perform deformation and stability analysis for various types of geotechnical applications. Real situations may be modelled either by a plane strain or an axisymmetric model. The program uses a convenient graphical user interface that enables users to quickly generate a geometry model and finite element mesh based on a representative vertical cross section of the situation at hand. Users need to be familiar with the Windows environment.

0p daicatruongpro 02-05-2013 94 10   Download

Tham khảo sách 'seismic waves, research and analysis_1', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

164p cucdai_1 16-10-2012 49 10   Download

Low-frequency acoustic energy released within the Earth's crust and mantle mostly propagates - depending on the density and elasticity of the medium - through several types of seismic waves categorized as body waves (longitudinal P and transverse S) or surface waves (long L and ground roll R). The importance of seismic wave research lies not only in our ability to understand and predict earthquakes and tsunamis, it also reveals information on the Earth's composition and features in much the same way as it led to the discovery of Mohorovicic's discontinuity....

172p cucdai_1 16-10-2012 63 2   Download

For many problems, 2D or axisymmetric analysis is used. This may require adjusting the heat transfer coefficients. Consider the bolt hole in Figure 13. The total surface area of the bolt hole is nDL, but in the finite element model, the surface area is only DL. In FEA, it is important the total hA product is correct.

10p lyacau 28-12-2009 100 9   Download