问题详情

圆管均匀层流过流断面上切应力分布为


A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">抛</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">物</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">线</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">分</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">布,</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">管</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">壁</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">处</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">为</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">零,</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">管</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">轴</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">处</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">最</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">大</span>

B、<span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"><span style="mso-spacerun: yes"></span></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">直</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">线</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">分</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">布,</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">管</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">壁</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">处</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">最</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">大,</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">管</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">轴</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">处</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">为</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">零</span>

C、<span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"><span style="mso-spacerun: yes"></span></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">均</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">匀</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">分</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">布</span>

D、<span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"><span style="mso-spacerun: yes"></span></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">对</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">数</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">分</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt"></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: ">布</span>

时间:2021-07-17 23:48 关键词: 能源与动力工程 专升本 工程流体力学 2019级第三学期期末考试

答案解析

B