人民黄河
人民黃河
인민황하
Yellow River
2014年
12期
110-113
,共4页
陈社鸿%漆力健%黄华东%余国安
陳社鴻%漆力健%黃華東%餘國安
진사홍%칠력건%황화동%여국안
阶梯-深潭系统%复杂流态%立轴旋涡%横轴旋涡%消能率
階梯-深潭繫統%複雜流態%立軸鏇渦%橫軸鏇渦%消能率
계제-심담계통%복잡류태%립축선와%횡축선와%소능솔
step-pool system%complex flow patterns%spindle vortex%horizontal vortex%energy dissipation rate
阶梯-深潭系统的消能作用主要集中在深潭内,这是与深潭内水流的复杂流态有关的。梯上水流跌落深潭,与潭内水流发生碰撞,进而下切,引起旋滚、翻腾、紊动等一系列利于能量交换的现象。水流在深潭内经历急流向缓流转变的过程,能量随之被消刹在潭内,进而流向下游,达到消能的目的。在潭内复杂流态的分析上,旋涡的分析是具有代表性的,潭内无论出现横轴旋涡或者立轴旋涡,从它们与潭内水流翻滚摩擦以及旋涡间互相影响的角度来说,都是有利于消能的。
階梯-深潭繫統的消能作用主要集中在深潭內,這是與深潭內水流的複雜流態有關的。梯上水流跌落深潭,與潭內水流髮生踫撞,進而下切,引起鏇滾、翻騰、紊動等一繫列利于能量交換的現象。水流在深潭內經歷急流嚮緩流轉變的過程,能量隨之被消剎在潭內,進而流嚮下遊,達到消能的目的。在潭內複雜流態的分析上,鏇渦的分析是具有代錶性的,潭內無論齣現橫軸鏇渦或者立軸鏇渦,從它們與潭內水流翻滾摩抆以及鏇渦間互相影響的角度來說,都是有利于消能的。
계제-심담계통적소능작용주요집중재심담내,저시여심담내수류적복잡류태유관적。제상수류질락심담,여담내수류발생팽당,진이하절,인기선곤、번등、문동등일계렬리우능량교환적현상。수류재심담내경력급류향완류전변적과정,능량수지피소찰재담내,진이류향하유,체도소능적목적。재담내복잡류태적분석상,선와적분석시구유대표성적,담내무론출현횡축선와혹자립축선와,종타문여담내수류번곤마찰이급선와간호상영향적각도래설,도시유리우소능적。
Step-pool system energy dissipation effect is mainly in deep pools,which is associated with deep pools of water in the complex flow. Ladder water drops deep pools,a collision with the water flow in the pool,and then cutting,rolling somersault and turbulence,causes a series of favorable energy exchange phenomenon. Flow experiences rapid to slow changes in deep pools,energy is killing in the lake,then flows downstream and achieves the purpose of energy dissipation. In deep pools in the analysis of complex flow,vortex analysis is representative,deep pool in no mat-ter transverse vortex or vortex,and pools of water flow in from their rolling friction and vortex influences each other's perspective,is conducive to en-ergy dissipation. This paper mainly analyzed the development of vertical and transverse vortex pool inside the case,calculated the energy dissipation rate of each condition and provided evidence for the utility of the step-pool system.