Result of study indicates that the momentum input along with the branch flow toward the downstream and the additional friction induced by the mixing of main streams with branch flows should be considered for rational analysis of the local energy loss at junctions 研究结果表明，正确分析管道汇流口水流的局部能量损失机理，必须考虑汇入断面上支流沿下游主流方向的动量输入和主支流间相互掺混引起的附加摩擦阻力的影响。
