SIMULATION OF 3-D FLOW AROUND A VAN-BODY TRUCK WITH RNG K-ε TURBULENCE MODEL

1 .　ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｖａｎ ｂｏｄｙｔｒｕｃｋｉｓａｂｌｕｎｔｂｏｄｙｗｉｔｈｉｒｒｅｇｕｌａｒｓｈａｐｅ ,ａｎｄｔｈｅｖａｎｂｏｄｙｉｓｍｕｃｈｈｉｇｈｅｒｔｈａｎｔｈｅｄｒｉｖ ｅｒｃａｂ ,ｗｈｉｃｈｒｅｓｕｌｔｓｉｎｔｈｅｌａｒｇｅｕｐｗｉｎｄａｒｅａ ,ｔｈｅｗｏｒｓｅａｅｒｏｄｙｎａｍｉｃｃｈａｒａｃｔｅｒｉｓｔｉｃｓａｎｄｔｈｅｌａｒｇｅａｅｒｏ ｄｙｎａｍｉｃｄｒａｇ .Ｗｉｔｈｔｈｅｉｎｃｒｅａｓｅｏｆｔｈｅｖｅｈｉｃｌｅｓｐｅｅｄｔｈｅｆｕｅｌｃｏｎｓｕｍｐｔｉｏｎｉｎ…     

EXPERIMENTAL RESEARCHES AND COMPARATIVE STUDIES ON SEAKEEPING FOR A LARGE CONTAINER SHIP

An experiment is carried out to investigate the effects of wave direction and rolling motion on deck wetness nnd on the relative motion for a large last container ship. The experimental results of regular waves and irregular waves are presented. It is concluded from this experiment that, evidently the wave directions and rolling motion have a considerable influence on the relative motion at midship.     

NEARLY VERTICAL WATER ENTRY OF A DISK-CYLINDER

A 3-D nonlinear,unsteady free surface problem of nearly vertical water entryof a disk-cylinder is investigated in this paper.By using a modified perturbation method and theFourier cosine expansion method,the original 3-D nonlinear problem is reduced to a few of 2-Dones and then solved with the boundary integral equation method(BIEM).Numerical results areprovided for the time dependent water surface and cavity surface as well as the pressuredistribution on the bodv during its water entry.     

无锡经济转型发展的经验与启示

2005年以来,无锡坚持以科学发展观为指导,以“当好全省现代化建设先行军,争创科学发展先导区、和谐发展示范区、党的建设模范区”为主要发展目标。把自主创新作为推动经济转型升级的第一驱动力,全力推动经济转型,在产业转型和城市转型等方面进行了卓有成效的探索,取得了一系列世人瞩目的成就。