Experimental data and numerical predictions of steady and unsteady flow in a 4 m high, 86 mm internal diameter tube fishway were compared quantitatively, and reflected expected uncertainties characteristic of the experiments and flow hydraulics. We then measured the response of a neutrally-buoyant fluid sensor and the behaviour of live fish transported vertically within the tube fishway. Ten repeat tests using the sensor and tests with seventy individual live fish demonstrated transport with 100% reliability. No ill effects were observed over a post-test monitoring period for two species of Australian native fish (Australian bass (Percalates novemaculeata) and Silver perch (Bidyanus bidyanus)) or as a function of size of the Silver perch that can be related to their passage through the fishway. There may have been temporary bruising of a few of the largest Silver perch tested. The largest Silver perch averaged 137 mm in length. The spatial distributions of the inert sensor and fish relative to the moving front during the transport process were quantified. Consequently, the volumes of water required during each operational cycle to ensure reliable delivery of fish over vertical distances less than 4 m were determined. The sensor measurements indicated negligible interactions with straight pipe walls but exposure to significant accelerations at sharp bends. Further experiments with live fish are required to quantify the possible adverse effects of alternative pipe transition designs on animals transported through them. Safe transport of fish up to a fish length/tube fishway delivery diameter ratio of 1.6 is demonstrated.

对高 4 m、内径 86 mm 的管状鱼道中稳态和非稳态流动的实验数据和数值预测进行了定量比较，并反映了实验和流动水力学的预期不确定性特征。然后，我们测量了中性浮力流体传感器的响应以及在管鱼道内垂直运输的活鱼的行为。使用传感器进行的 10 次重复测试和对 70 条活鱼的测试证明了运输具有 100% 的可靠性。在测试后监测期间，对两种澳大利亚本土鱼类（澳大利亚鲈鱼（Percalates novemaculeata）和银鲈（Bidyanus bidyanus）没有观察到不良影响)) 或作为与银鲈通过鱼道有关的大小的函数。测试过的一些最大的银鲈可能有暂时的瘀伤。最大的银鲈平均长度为 137 毫米。在运输过程中，惰性传感器和鱼相对于移动前沿的空间分布被量化。因此，确定了每个操作周期中确保在小于 4 m 的垂直距离内可靠运送鱼所需的水量。传感器测量表明与直管壁的相互作用可以忽略不计，但在急弯时会受到明显的加速度。需要对活鱼进行进一步的实验，以量化替代管道过渡设计对通过它们运输的动物可能产生的不利影响。