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NUMERICAL SIMULATION OF A FLARE

机译:耀斑的数值模拟

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Magnetohydrodynamic simulation of a flare including the effect of anisotropic heat conduction, chromo-spheric evaporation, and radiative cooling based on the magnetic reconnection model is performed. In the simulation model the coronal magnetic energy is converted into thermal energy of the plasma by magnetic reconnection. This energy is transported to the chromosphere by heat conduction along magnetic field lines and causes an increase in temperature and pressure of the chromospheric plasma. The pressure gradient force drives upward motion of the plasma toward the corona. i.e. chromospheric evaporation. This enhances the density of the coronal reconnected flare loops, and such evaporated plasma is considered to be the source of the observed soft X-ray emission of a flare. The flare loops filled with evaporated dense plasma cool down due to the radiative cooling effect. EUV emitting post-flare loops thus are reproduced in the simulation.
机译:磁火磁力学模拟,包括各向异性导热,铬球蒸发和基于磁性重新连接模型的辐射冷却的效果。在模拟模型中,冠状磁能通过磁重新连接转换成等离子体的热能。这种能量通过沿磁场线的热传导通过热传导而被输送到铬圈,并导致曲线血浆的温度和压力的增加。压力梯度力将等离子体向上运动朝向电晕。即,蒸发蒸发。这增强了冠状​​重新连接的眩光环的密度,并且认为这种蒸发的等离子体被认为是耀斑的观察到的软X射线发射的源。由于辐射冷却效果,喇叭口填充有蒸发的致密等离子体冷却。因此,EUV发出爆炸后环的爆炸后循环在模拟中复制。

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