【摘要】：針對(duì)長(zhǎng)江航道的升級(jí),往來(lái)船只航行在具有突嘴、較大礁石礙航河段航行時(shí),往往由于橫向?qū)挾炔蛔銓?dǎo)致船舶航行安全受到威脅的問(wèn)題,進(jìn)行概化礁石斜流水流結(jié)構(gòu)以及船舶受力特點(diǎn)研究。采用CFD軟件模擬礁石航道時(shí)船舶的水流三維數(shù)值模擬方法,得知:流速、礁石占據(jù)比越大對(duì)水流結(jié)構(gòu)的影響距離越大,且橫向流速的影響距離較突出;流速與船舶所受橫向力成正比;概化礁石對(duì)船舶的縱向影響距離在上下游1倍船長(zhǎng)范圍之間,最大值約在上游0.5倍船長(zhǎng)處。
[Abstract]:In view of the upgrading of the Yangtze River channel, the safety of ships travelling to and from the Yangtze River is often threatened by the lack of transverse width when sailing with a bulging mouth and a larger reef hindering the navigation of the reach of the Yangtze River. The general structure of reef oblique flow and the characteristics of ship force were studied. The CFD software is used to simulate the three-dimensional numerical simulation of the ship's water flow in the reef channel. It is found that the larger the velocity and the larger the reef occupation ratio, the greater the influence distance on the water flow structure, and the influence distance of the transverse velocity is more prominent. The velocity of flow is in direct proportion to the transverse force of the ship, and the longitudinal influence distance of the reef on the ship is between 1 times the length of the ship in the upper and lower reaches, and the maximum value is about 0.5 times the length of the ship in the upper reaches.
【作者單位】： 重慶交通大學(xué)水利水運(yùn)工程教育部重點(diǎn)試驗(yàn)室;重慶交通大學(xué)國(guó)家內(nèi)河航道整治工程技術(shù)研究中心;
【基金】：“十二五”國(guó)家科技支撐計(jì)劃(2012BAB05B03) 重慶市自然科學(xué)基金項(xiàng)目(cstc2011JJA30002) 重慶市教委基金項(xiàng)目(KJ1400319)
【分類號(hào)】：U612;U661

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