转速对KDP晶体成帽影响的数值模拟研究

来源 :无机材料学报 | 被引量 : 0次 | 上传用户:CaT614
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
本研究选择有限容积法,采用Fluent软件对KH2PO4(KDP)晶体在不同转速下成帽过程的温度场及速度场分布进行了数值模拟。晶体转速较低(9 r/min)时,晶体附近温度分布比较均匀,相应的晶体只出现一个帽区,但温度较高,成帽较慢;晶体转速较高(55和77 r/min)时,温度分布也比较均匀,所以晶体也只有一个帽区,此时温度较低,成帽较快;晶体转速介于两者之间时,温度分布出现扰动,晶体成帽同时出现两个或多个帽区,成帽速度介于两者之间。在所模拟晶体转速范围内,较高转速77 r/min是晶体帽区恢复的最优转
其他文献
A 42 year-old male sustained an accidental rifle gunshot wound to his left foot, resulting in fracture deformities of the calcaneus, navicular, cuneiform, 1st a
Introduction: One of the most important jobs of an anesthesiology is to preserve an adequate gaseous exchange. With the coming in the 80’s of the laryngeal mas
采用磁控溅射仪制备了一系列不同V含量的TaVN复合膜,利用X射线衍射仪研究复合膜以及磨痕的相组成,利用纳米压痕仪表征复合膜的硬度,采用高温摩擦磨损实验机研究了复合膜的室
在农村,母牛产犊后胎衣不下,时有发生。据笔者实践证明,以下两法确有疗效:  1.取白花丹(全草)、红蓖麻叶、倒扣草各250克。先将白花丹切碎,大火煮1小时,取其药液;把红蓖麻叶、倒扣草切碎捣烂,加洗米水3000毫升,然后冲入白花丹药液,连渣带水一起灌服。母牛服药后12小时左右即可排出胎衣。  2.取干糯米草1.5公斤(新鲜糯米草加倍),水煎,一次灌服,服后2~3小时胎衣即下。如未见效,可再服一次。
We present a case of occult hemothorax, a rare but dangerous complication resulting from cannulation of the internal jugular vein. To date we are not aware of a
PIEB has been reported as being superior to CEI for labor analgesia. The aim of this study was to measure the pressures generated by two commercially available
Difficult intubation, inadequate ventilation and esophageal intubation are the principal causes of death or brain damage related to airway manipulation. The obj
采用熔盐法制备了钙钛矿结构的钛酸锶立方块。通过浸渍法对所得钛酸锶进行表面离子修饰,得到表面负载无定形Cu(n)纳米团簇的新型可见光催化剂。利用ICP—AES、XRD、SEM、XPS、DR
采用常规高分辨透射电镜(HRTEM)在层状共生化合物Bi7Ti4NbO21中可经常观察到大量生长缺陷:比如插入额外的Bi3TiNbO9或Bi4Ti3O12层而产生的无序共生结构,以及由共生相Bi7Ti4NbO21
Background and Objective: Anesthesiologists need to be familiar with perioperative changes in blood volume (BV);however, there is no standard method for repeate