The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Wind tunnel testing is the effective method to research high speed train aerodynamics. It is one of the key steps to ascertain the model scale for wind tunnel testing, because scaled model is always introduced into wind tunnel testing, due to the huge body. Based on the structure of aerodynamic and aero-acoustic wind tunnel, using computational fluid dynamics (CFD), focus on middle car of three connected...
Computational fluid dynamics (CFD) was used to simulate the flow field over two generic sedans moving in sequence. The simulation was based on a steady state formulation and the focus of the simulation was to analyze the aerodynamic interaction of flow field around the two sedans. Detailed comparisons of aerodynamic feature of the corresponding parts were made among the first sedan, the second sedan...
Viaducts are widely built in the modern high speed railway system. The noise barrier will have some effect on the aerodynamic characteristics of the high speed train running on the double line viaduct. It is essential that the research on this effect will be made. It will provide some engineering reference for the high speed railway construction. Using the CFD(Computational Fluid Dynamics) soft Fluent,...
To provide detailed insight into schemed power-augmented flow for wing-in-ground effect (WIG) craft in view of the concept of cruising with power assistance, this paper presents a numerical study. The engine installed before the wing for power-augmented flow is replaced by a simplified engine model in the simulations, and is considered to be equipped with a thrust vector nozzle. Flow features with...
Viaducts are widely used in the modern high speed railway construction. In order to ensure the high speed train running safely, passenger's comfort and environment protecting, it is essential that the aerodynamic characteristic of the high speed train moving on the viaduct will been researched. These researches will provide some engineering reference for the high speed railway construction. The studying...
At present, the aerodynamic characteristic of the pantograph has been attached more importance to with the improvement of the high speed train. The excellent aerodynamic characteristic of the pantograph is a significant factor ensuring the current collecting stability between the pantograph and catenary and increasing the using life. The studying methods on it include theoretical computing, numerical...
The purpose of this paper is to assess the performance of different front-end configurations for a minivan under development. The Fluent CFD code is used to model the under-hood airflow for the vehicle. The cooling performance is found to be sensitive to changes in the fascia geometry particularly the lower parts in front-end configurations for the minivane.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.