24小时热门版块排行榜    

查看: 770  |  回复: 4
当前主题已经存档。
本帖产生 1 个 翻译EPI ,点击这里进行查看
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

风雨182

木虫 (正式写手)

[交流] 求助翻译一点点

图4-10是两种声压级条件下(SPL=100,130 dB),床内中心区颗粒轴向和径向瞬时速度分布图。由上图可清楚地看出,声压级对颗粒速度有明显影响作用。随声压级的增大,颗粒速度变化范围减小,速度变化趋势较平稳。原因是,随声压级的减小,气泡尺寸增大。由于气泡是鼓泡床内颗粒运动的主要推动力,气泡尺寸增大,颗粒受到的推动力增大,颗粒速度增大,如图4-10(a)和(c)。声压级为130 dB时,颗粒速度变化曲线较平缓,如图4-10(b)和(d)。
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

sammi_deng

金虫 (正式写手)

★ ★
sirljz(金币+2):谢谢交流 2010-04-18 20:35
Figure 4-10 is the instantaneous velocity profile of particle axial and radial directions in the center of the bed under the condition of two sound pressure level (SPL = 100,130 dB). As can be seen clearly from the above chart, sound pressure level has the  significantly influence on the particles' speed. With the sound pressure level increasing, the range of the particle velocity decreases , and the speed becomes more stable. The reason is that with the sound pressure level decreasing, the size of the bubble increases. Because the bubble is the main driving force to the particle motion in a bubble column, when bubble size increases, the driving force of the particle increases as well as the particle velocity, which is shown in Figure 4-10 (a) and (c). When sound pressure level is 130 dB , the particle velocity curves more gently, which is shown in Figure 4-10 (b) and (d).
3楼2010-04-18 15:10:59
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 风雨182 的主题更新
普通表情 高级回复(可上传附件)
信息提示
请填处理意见