Estimation of heat, water, and black carbon fluxes during the fire induced by the Hiroshima A-bomb in 1945
Estimation of heat, water, and black carbon fluxes during the fire induced by the Hiroshima A-bomb in 1945
复制标题
1945 年广岛原子弹引发火灾期间热量、水和黑碳通量的估算
DOI：
10.15027/33620
复制
发表时间：
2012
影响因子：
2.4
通讯作者：
T. Tanikawa
中科院分区：
文献类型：
--
作者：
M. Aoyama;N. Kawano;Toshio Koizumi;T. Okada;Y. Okada;M. Ohtaki;T. Tanikawa
1945年7月，广岛地区传统日本房屋中的易燃材料量是以8 km x 8 km区域内每50 m网格中的kg m为单位进行估算的。然后，可燃材料的量被转换为热量，水，和黑碳通量的基础上，由A20炸弹引起的火灾的持续时间作为时间和空间的函数。该区域的平均热通量为14.4 kJ·s·m-1，变化范围为0.5 ~ 96.5 kJ·s·m-1。火灾期间释放的总热量为7 PJ。在火灾过程中，总共产生和释放了0.22 Tg的水。当我们假设10%的燃料处于还原条件下时，在火灾过程中产生和释放的黑碳总量为0.02 Tg。还计算了每个50米网格中与时间相关的热、水和碳通量。
The amount of flammable materials in traditional Japanese houses in the Hiroshima region in July 1945 was estimated in terms of kg m in each 50 m grid in 8 km x 8 km region. Then, the amount of flammable materials was converted to heat, water, and black carbon fluxes based on the duration of the fire induced by the A20 bomb as a function of time and space. The average heat flux in the region was 14.4 kJ s m, and it ranged from 0.5 to 96.5 kJ s m. The total heat released during the fire was 7 PJ. In total, 0.22 Tg of water was produced and released during the fire. The total amount of black carbon produced and released during the fire was 0.02 Tg, when we assume that 10% of the fuel was under reducing conditions. The time25 dependent fluxes of heat, water, and carbon were also calculated in each 50 m grid.