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首页> 外文期刊>Plasma and Fusion Research >Study on Jets Stabilized by Inserting Internal Flow Resistances for the Liquid Metal Divertor in the Helical Fusion Reactor
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Study on Jets Stabilized by Inserting Internal Flow Resistances for the Liquid Metal Divertor in the Helical Fusion Reactor

机译：通过在螺旋聚变反应堆中插入液态金属分流器的内部流阻来稳定射流的研究

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The stabilization effect of the Internal Flow Resistances (IFR) inserted into water jets has been investigated in order to apply the liquid metal divertor to the helical fusion reactor, FFHR. A high heat load exceeding 20 MW/m2 is one of the important issues for the divertor in the nuclear fusion reactor. A new concept of ergodic limiter/divertor called the REVOLVER-D has been proposed for FFHR. This divertor is expected to tolerate a high heat load larger than a few tens of MW/m2. Jets narrow after acceleration by gravity and transform to droplets due to the surface tension instability. Stabilization of jets is an important issue for realizing the REVOLVER-D. In this paper, stabilization of jet by various IFR has been examined. Here, the “sheath jet” is defined as a jet with an IFR inside. Experiments on sheath jet have been carried out and the stabilization effect of IFR has been confirmed. Numerical simulations on sheath jet using ANSYS have been carried out. It is shown that the velocity of the sheath jet reaches the terminal velocity, which is proportional to 0.36 ± 0.01 power of the flow rate and ?0.26 ± 0.01 power of the outer circumference of the IFR.
机译：为了将液态金属分流器应用于螺旋聚变反应堆FFHR，已经研究了插入水刀的内部流阻（IFR）的稳定作用。超过20 MW / m2的高热负荷是核聚变反应堆中分流器的重要问题之一。 FFHR提出了一种新的遍历限流器/分流器概念，称为REVOLVER-D。期望该分流器能够承受大于几十MW / m2的高热负荷。射流在重力作用下加速后变窄，并由于表面张力的不稳定性而转变为液滴。喷射器的稳定是实现REVOLVER-D的重要问题。在本文中，研究了各种IFR对射流的稳定作用。在此，“鞘射流”被定义为内部具有IFR的射流。已经进行了鞘射流的实验，并且已经证实了IFR的稳定作用。使用ANSYS对鞘管射流进行了数值模拟。结果表明，鞘射流的速度达到了最终速度，该速度与流量的0.36±0.01幂和IFR外周缘的±0.26±0.01幂成比例。

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