aragog/data/1TPa-dK09-elec-free/entropy
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The material properties shown here are computed in entropy space using the RTpress EOS developed by Wolf and Bower (2018). This high P–T EOS applies a generalized Rosenfeld–Tarazona model as a thermal perturbation to isothermal and adiabatic reference compression curves, resulting in a thermodynamically consistent formulation. RTpress remains accurate over a wide P-T range and depends on a limited number of physical parameters, which are calibrated from experimental or simulation data. In this case, we use their parameterization for MgSiO₃ melt, representing a rocky mantle composition up to 1TPa.
本文所呈现的材料属性,系通过Wolf与Bower(2018)提出的RTpress状态方程(RTpress EOS)在熵空间中计算得到。该高压-高温(Pressure-Temperature,P-T)状态方程将广义Rosenfeld-Tarazona模型作为热微扰应用于等温与绝热参考压缩曲线,由此得到热力学自洽的数学表述。RTpress状态方程在宽广的压力-温度区间内均保持高精度,且仅依赖少量物理参数,这些参数可通过实验或模拟数据完成校准。本研究采用其针对硅酸镁熔体(MgSiO₃ melt)的参数化方案,该方案可表征最高达1太帕斯卡(1TPa)的岩石幔成分体系。



