Vietnam Journal of Mechanics

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Numerical simulation of fluid mud layer under current and waves in estuaries and coastal areas
Vietnam Journal of Mechanics - Tập 20 Số 3 - 1998
The formation and development of fluid mud layer under the both factors of current and wave that often happens in estuaries and coastal areas are studied in detail through numerical simulation on the basis of the 2D shallow water equations for tidal flow, the advection-diffusion equation for cohesive sediment transport and the equations for fluid mud transport. At the same time the model for wave ...... hiện toàn bộ
The theoretical model of interaction between the baroclinic boundary layers of atmosphere and ocean
Vietnam Journal of Mechanics - Tập 2 Số 1 - 1980
Presenting the theoretical model of the atmospheric and oceanic baroclinic boundary layers by interaction.Baroclinic effects of two boundary layers are described by the horizontal gradients of air temperature and water density in the equations of motion.The formulas computing the characteristics of the oceanic atmospheric baroclinic boundary layers were obtained.The above 1heoretical model is the ...... hiện toàn bộ
Combination of collocation and factorization methods applied to numerical solutions of bubble-inside drop system dynamics
Vietnam Journal of Mechanics - Tập 21 Số 1 - 1999
In the paper the combination of collocation and factorization methods applied to numerical investigation of bubble-inside drop system dynamics is presented. Initially assumed bubble and drop have ellipsoidal forms. The initial relative location of the drop in the bubble is determined by equilibrium condition between drop weight and lift-force due to pressure distribution in gas/vapor. Calculations...... hiện toàn bộ
The oscillations of the dynamical systems with hysteresis characteristics excited stochastic parameter and forces. II
Vietnam Journal of Mechanics - Tập 2 Số 1 - Trang 16-22 - 1980
In this paper, the problem in [1] is continued studying. The some special cases of the general problem are considered. The beam with internal friction under stochastic forces is analyzed. In this example the influence of the hysteresis character in material and the parameter in the system on the oscillations of the beam are shown.
Analysis of some nonlinear deterministic oscillators using extended averaged equation approach
Vietnam Journal of Mechanics - Tập 27 Số 1 - 2005
Ninh Quang Hai
The paper presents an application of extended averaged equation approach in investigating some nonlinear oscillation problems. The main idea of the method is briefly described and numerical simulations are carried out for some nonlinear oscillators. The results in analyzing oscillation systems with strong nonlinearity show advantages of the method.
Tự động hóa thiết kế các cơ sở đồ môđun truyền dẫn khí nén
Vietnam Journal of Mechanics - Tập 13 Số 1 - 1991
None
Nonlinear analysis of buckling and postbuckling for axially compressed functionally graded cylindrical panels with the Poisson's ratio varying smoothly along the thickness
Vietnam Journal of Mechanics - Tập 34 Số 1 - 2012
Le Kha Hoa, Dao Van Dung
In this paper an approximate analytical solution to analyze the nonlinear buckling and postbuckling behavior of imperfect functionally graded panels with the Poisson's ratio also varying smoothly along the thickness is investigated. Based on the classical shell theory and von Karman's assumption of kinematic nonlinearity and applying Galerkin procedure, the equations for finding critical loads and...... hiện toàn bộ
#Nonlinear #postbuckling #functionally graded materials #cylindrical panel
Calculation of turbulent diffusion jets under effects of gravity and moving surrounding air
Vietnam Journal of Mechanics - Tập 23 Số 2 - 2001
The basis theory for the turbulent diffusion of jet and flame has been presented previously [1, 2]. But that one applies only in quiet surrounding air with the effects of buoyancy neglected. In the present paper, the theory is developed further by establishing an integral model for a jet in more general conditions with variable inclined angles, under effects of gravity and surrounding air velocity...... hiện toàn bộ
Ổn định của vỏ trụ trực hướng đàn nhớt và đàn hồi
Vietnam Journal of Mechanics - Tập 10 Số 2 - 1988
None
Về một giả thiết va chạm
Vietnam Journal of Mechanics - Tập 11 Số 3 - 1989
None
Tổng số: 1,046   
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