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According to the standard thin disc theory, it is predicted that theradiation-pressure-dominated inner region of a thin disc is thermally unstable,while observations suggest that it is common for a thin disc of more than 0.01Eddington luminosity to be in a thermally stable state. Previous studies havesuggested that magnetically driven winds have the potential to suppressinstability. In this work, we implement one-dimensional global simulations ofthe thin accretion disc to study the effects of magnetically driven winds onthermal instability. The winds play a role in transferring the angular momentumof the disc and cooling the disc. When the mass outflow rate of winds is low,the important role of winds is to transfer the angular momentum and thenshorten the outburst period. When the winds have a high mass outflow rate, theycan calm down the thermal instability. We also explore the parameter space ofthe magnetic field strength and the mass loading parameter.

Time-dependent global simulations of a thin accretion disc: the effects of magnetically-driven winds on thermal instability