【摘要】 对多种不同的流速比、不同的喷口密度佛汝德数的浅水横流中水平热水浮力射流进行了大量的数值试验,对整个流场的流动特性作了详尽的分析,得出流速比和密度佛汝德数是影响流场和温度场的主要因素。在大流速比情况下,射流存在分叉现象,流速比R=0.10为附壁(底)流动现象的临界值,并给出了最大入侵深度与流速比的拟合关系式。更多还原

【Abstract】 <Abstrcat>Based on a series of numerical calculation, the behavior of flow field that a hot water jet near bed enters a shallow crossflow is summarized and analyzed.The main influences of current on the jet path are the value of velocity ratio (R) and the densimetric Froude number. There is bifurcation phenomenon in buoyant jet for large velocity ratio. Shoreline attachment will happen when velocity ratio is larger than 0.1. The maximum horizontal penetration depth is an imporant parameter for buoyant jet in cross flow. The relationship between the maximum horizontal penetration depth and the velocity ratio is also obtanted.更多还原