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.
The technique of curvilinear boundary-fitted coordinate system is used for the mathematical model of pressure underground seepage flow and the boundary conditions and the method of solving the transformed equations have been presented. The computing example shows that the computed hydraulic parameters conform to the physical laws. Compared with the finite element method, the presented method need...
A high-resolution numerical model for simulating of 2D flood waves was presented based on using the two-step finite-volume component-wise TVD (total variation diminishing) scheme, by which second-order accuracy in both time and space is achieved. Numerical simulations for 2D flood waves were implemented. The comparisons with other numerical solutions show that the proposed method can be capable of...
This paper is concerned with the numerical solution of two-dimensional flows. The technique of boundary-fitted coordinate system is used to overcome the difficulties resulting from the complicated shape of natural river boundaries; the method of physical fractional steps is used to solve the partial differential equations in the transformed plane; and the technique of moving boundary is used to deal...
This paper presents a numerical method to simulate the 2D tidal flow and water quality under the orthogonal curvilinear coordinates. In order to overcome the computational difficulties in natural rivers, such as the complicated boundary figures, the great disparity between length and width of computational domain, etc., orthogonal boundary-fitted grid is used, the irregular domain in physical plane...
This paper is concerned with a mathematical model for numerical simulation of 2D flood waves due to complete or partial dam-break. The governing water equations are solved by a implicit bidiagonal numerical scheme, based on the MacCormack's predictor-corrector technique. The mathematical model is used to numerically compute the water surface from supercritical flow to sub critical one or from sub...
This This paper is concerned with the numerical solution of two-dimensional flows. The technique of boundary-fitted coordinate system is used to overcome the difficulties resulting from the complicated shape of natural river boundaries, the method of physical fractional steps is used to solve the partial differential equations in the transformed plane, and the technique of moving boundary is used...
A friction measurement experiment was conducted using the Brungraber Mark II slipmeter. The coefficient of friction (COF), the time and velocity of slipping of the footwear sample on the floor were measured under four floors and two surface conditions. Two operators performed the measurements separately. The results showed that there were no significant differences between the two operators in measuring...
This paper presents a numerical method to simulate the 2D tidal flow and water quality under the orthogonal curvilinear coordinates. In order to overcome the computational difficulties in natural rivers, such as the complicated boundary figures, the great disparity between length and width of computational domain, etc., orthogonal boundary-fitted grid is used, the irregular domain in physical plane...
Optimal path selection (OPS) with unique or multiple constraints is one of key issues in the dynamic networks, in which arc' weight metric is an interval number. Firstly, some existing solutions for this problem are analyzed, and some shortages and flaws are pointed out. Secondly, regularities of distribution of the summation of multiple independent random numbers with same and different distributions...
Vendor-managed inventory (VMI) system requires that the vendor is authorized to manage inventories of agreed-upon stock units at retail locations and the shipment process, and when to replenish for the vendor and how to dispatch the stock to the retails in a given area are the important decisions for the vendor. In this paper, we focused on presenting the influences of vendorpsilas limited transportation...
Gradient vector flow (GVF), an external force for the snake model, is reformulated by replacing the smoothness constraint with a harmonic one, which is related to the divergence and the curl of the vector field. The proposed formulation provides some new insights into the nature of the GVF.
The possibility of adding equivalent states to a flow table so that the augmented flow table will be realizable as a set of binary shift registers with feedback is discussed.
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.