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Transient inverse heat conduction problem of quenching a hollow cylinder by one row of water jets

机译:用一排水枪淬火空心圆柱体的瞬态逆导热问题

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In this study, a two-dimensional linear transition inverse heat conduction problem (IHCP) was solved using the Generalized Minimal Residual Method (GMRES) in quenching process by water jets. The inverse solution method was validated by set of artificial data and solution sensitivity analysis was done on data noise level, regularization parameter, cell size, etc. An experimental study has been carried out on quenching a rotary hollow cylinder by one row of subcooled water jets. The inverse solution approach enabled prediction of surface temperature and heat flux distribution of test specimen in the quenching experiments by using measured internal specimen temperature. Three different boiling curves were defined in the quenching process of a rotary cylinder. Result obtained by the inverse solution showed clear footprint of rotation in surface temperature and heat flux on each revolution of cylinder and temperature variation damping from quenching surface toward interior of specimen.
机译:在这项研究中,使用喷水淬火过程中的广义最小残留法(GMRES)解决了二维线性过渡逆热传导问题(IHCP)。通过一组人工数据验证了逆解方法的有效性,并对数据噪声水平,正则化参数,像元大小等进行了溶液敏感性分析。已经进行了通过一排过冷喷水淬火旋转空心圆柱体的实验研究。 。通过使用测得的内部样品温度,逆解方法可以预测淬火实验中样品的表面温度和热通量分布。在旋转圆筒的淬火过程中定义了三种不同的沸腾曲线。通过逆解得到的结果表明,圆柱体每转一圈表面温度和热通量的旋转轨迹清晰,从淬火表面向试样内部的温度变化衰减明显。

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