It is observed that the wandages of the suspension insulator strings determined with the finite element and multi-rigid-body models are consistent with those obtained by menas of the traditional method, in the case of steady wind loads.

By using orthogonal tests, with the 7d-unconfined compression strength as criteria, through indoor blending ratio tests about cement and macadam added to eolian sand, this paper studies the road performance of cement stabilized aeolian sand and macadam base course and analyses the effects of cement content, macadam content and macadam gradating on road performance.

The stability properties of the equilibria with constant wind shear (both in vertical and horizontal direction) and the non-constant static stability in bounded, inviscid and adiabatic atmosphere were investigated by using normal mode method.

Flight frequency at constant wind velocity was affected by illumination.

Constant wind stress in the first case, and constant wind stress or negative wind stress curl in the second case, are abruptly imposed.

In the habitat of desert ants, Cataglyphis fortis, a constant wind is usually blowing during the daytime.

The drift in the third coordinate represents gravitation, while the drift in the first and second represents a (constant) wind.

Based on the water level data of East Taihu Lak on August 1984, andthe lake current data of Taihu Lake on september 1993, this paper discussesapplication of the method of numerical inlay to set up an inlay-mesh model of thecharacteristics of East Taihu Lake's wind-driven currents in various wind regimes.Taihu Lake (30°55'40" -31°32'58" N and 119°52' 32" - 120°36' 10" E) is one ofthe famous five fresh water lakes in China, and the largest lake in Jiangsu Province.East Taihu Lake is a shallow water bay on the...

Based on the water level data of East Taihu Lak on August 1984, andthe lake current data of Taihu Lake on september 1993, this paper discussesapplication of the method of numerical inlay to set up an inlay-mesh model of thecharacteristics of East Taihu Lake's wind-driven currents in various wind regimes.Taihu Lake (30°55'40" -31°32'58" N and 119°52' 32" - 120°36' 10" E) is one ofthe famous five fresh water lakes in China, and the largest lake in Jiangsu Province.East Taihu Lake is a shallow water bay on the east part of Taihu Lake, and has areaof 130.0km2, maximum depth of 1.3m, mean depth of 0.9m and volume of 1.81 ×10 8m3.Based on the shallow water characteristics of Taihu Lake, the contininty equationand the momentum equations in Cartesian coordinates can be written aswhere △ is Laplace operator. Here (x,y, z) form the right-hand coordinate systom (xis eastwards, y is northwards, z is positive upward with the origin at the lake surface),u, v the horizonta velocity component, f the Coriolis' parameter which can beassumed to be constant,g the acceleration of gravity, vn the vertical eddy viscosity,h = h(x,y) is the water depth, the amplitude of lake surface waves.The boundary conditions are given asV·n \ L1 = 0 (2)where L1 is the coast of Taihu Lake, n the vector normal to the surface of the coastof Taihu Lake, F = (u, v) the lake current.where L2 is the coast of East Taihu Lake, n has the saxne meaning with that informula (2), VR(t) the lake current on the water boundary.The results showed that the wind on the lake area determines the water currenttypes and distribution; that opposite direction winds cause the opposite rotation gyres.The direction of wind-driven current is almost the same as the wind direction duringthe eary period of wind forcing (Fig. 1). The stable wind-driven cuerent is theresultant combination of some gyres and coasta curmnts in the lake (Fig.2). In thecase of NW wind, the water of West Taihu Lake flows into East Taihu Lak, andgenerate some gyres there, so tha the polluted water from West Taihu hake mayremain in East Taihu Lake. In the case of SE wind, the water of East Taihu Lakeflows into West Taihu Lake. In this case, East Tahu Lake is not influenced by thepolluted water of West Taihu Lake. Wind-driven curmnt is the important factor insummer which causes the water quality of East Taihu Lake to be of higher qualitythan that of West Taihu Lake, and the cyanobcteria bloom in West Taihu Lake to beheavier than that in East Taihu Lake.

This paper discusses application of an inlay mesh model to the Meiliang Lake Area′s wind driven currents in the cases of various wind regimes.The results showed that the water of Taihu Lake flows into Meiliang Lake in the case of the wind S, the water of Meiliang Lake flows into Taihu Lake in the case of the wind N during the early period of wind forcing,and that stable wind driven current is the clockwise cyclic gyres in the case...

This paper discusses application of an inlay mesh model to the Meiliang Lake Area′s wind driven currents in the cases of various wind regimes.The results showed that the water of Taihu Lake flows into Meiliang Lake in the case of the wind S, the water of Meiliang Lake flows into Taihu Lake in the case of the wind N during the early period of wind forcing,and that stable wind driven current is the clockwise cyclic gyres in the case of S and E wind direction,and the counterclockwise cyclic gyres in the N and W wind direction. The water exchange between Meiliang Lake and Zhushang Lake is separated by the reclamation of Mashang area, influencing the winddriven current types of Meiliang Lake, and causing water renewing to be decelerated.

Using Fourier series expansion and Bayesine Methods, we have made a directional spectrum analysis of the array measurement data obtained in situ. The results indicate that the relative distribution of the field wind wave directional spectrum energy is closely related to the corresponding types of wave state. Each wave energy component of the swell spectrum due to stable wind is symmetrically unimodal distribution of direction. Although the relative energy distribution of wind wave spectrum due to strong wind...

Using Fourier series expansion and Bayesine Methods, we have made a directional spectrum analysis of the array measurement data obtained in situ. The results indicate that the relative distribution of the field wind wave directional spectrum energy is closely related to the corresponding types of wave state. Each wave energy component of the swell spectrum due to stable wind is symmetrically unimodal distribution of direction. Although the relative energy distribution of wind wave spectrum due to strong wind is appoximately unimodal, its symmetry is poor. The extremal spectrum density directions of components of wind wave spectrum types are different. This indicates that wave components of different frequencies have different principal directions.