本文在水平长环道上采用电导探针互相关测速技术实验研究了液塞速度,给出了液塞速度与气液混合速度的关联式.研究表明,在低Froude数和高Froude数时液塞速度分别对应不同的关联式.实验结果与文献报道比较表明,在低Froude数区很好吻合;在高Froude数区,实验结果高于其他研究者的数据.分析表明,液塞速度不受尾波效应影响,主要受液塞和长气泡长度以及液塞含气率作用.在低Froude数区,上下游探针测量的液塞和长气泡长度以及液塞含气率差别较小,因此液塞速度关联式一致;在高Froude数区,液塞和长气泡平均长度以及液塞含气率沿管增大,因此上下游的关联式不一致.
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