The change of sound speed has been found at the base of the convection during the solar cycles, which can be used to constrain the solar internal magnetic field. We aim to check whether the magnetic field generated by the solar dynamo can lead to the cyclic variation of the sound speed detected through helioseismology. The basic configuration of magnetic field in the solar interior was obtained by using a Babcock-Leighton (BL) type flux transport dynamo. We reconstructed one-dimensional solar models by assimilating magnetic field generated by an established dynamo and examined their influences on the structural variables. The results show that magnetic field generated by the dynamo is able to cause noticeable change of the sound speed profile at the base of the convective zone during a solar cycle. Detailed features of this theoretical prediction are also similar to those of the helioseismic results in solar cycle 23 by adjusting the free parameters of the dynamo model.

在太阳周期过程中，对流底部发现了声速的变化，可以用来约束太阳内部磁场。我们的目标是检查太阳发电机产生的磁场是否会导致通过日震学检测到的声速发生周期性变化。太阳内部磁场的基本配置是通过使用 Babcock-Leighton (BL) 型通量传输发电机获得的。我们通过同化由已建立的发电机产生的磁场来重建一维太阳模型，并检查它们对结构变量的影响。结果表明，发电机产生的磁场能够在太阳周期期间引起对流区底部的声速分布的显着变化。