《(完整word版)水力学综合测试题5.pdf》由会员分享,可在线阅读,更多相关《(完整word版)水力学综合测试题5.pdf(4页珍藏版)》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、综合测试题五一、名词解释(12 分,每题 3 分)1、临界水深;2、过流断面;3、水跌;4、有压长管:二、填空题(20 分,每空 2 分)1.某点的真空度为65000 Pa,当地大气压为100kpa,则该点的绝对压强为。2.变直径管,直径d1=320mm,d2=160mm,流速 v1=1.5m/s,v2=。3.流 体 的 均 匀 流 与 非 均 匀 流 的 区 别 在 于;而 恒 定 流 与 非 恒 定 流 的 区 别 在于。4.根据尼古拉兹实验结果,可以把紊流分为、和三个区。5.管嘴的工作条件是,和。6.设管道的直径为d,半满流的水力半径R=。三、选择题(10 分,每题 1 分)1.金属压力
2、表的读数是()A.绝对压强B.相对压强C.相对压强加当地大气压D.绝对压强加当地大气压2.绝对压强 pabs与相对压强p、真空度 pv、当地大气压强pa之间的关系为()A.pabs=p+pvB.p=pabs+paC.pv=pa-pabsD.p=pa+pv3.伯努利方程中表示()A.单位体积流体具有的机械能B.单位质量流体具有的机械能C.单位重量流体具有的机械能D.通过过流断面流体的总机械能4.黏性流体测压管水头线沿程的变化()A.沿程下降B.沿程上升C.保持水平D.前三种情况有可能5.速度 V、长度 L、重力加速度g 的无量纲集合是()A.VL/g B.V/gL C.L/gV D.V2/gL
3、6.雷诺数的物理意义表示()A黏滞力与重力之比B.重力与惯性力之比C.惯性力与黏滞力之比D.压力与黏滞力之比7.圆管紊流过渡区的沿程摩阻系数()A.与雷诺数 Re 有关B.与管壁相对粗糙Ks/d 有关C.与 Re 和 Ks/d 有关D.与 Re 和管长 L 有关8.比较在正常工作条件下,作用水头H,直径 d 相等,小孔口的流量Q 和圆柱形外管嘴的流量Qn()A.Q QnB.Q QnC.Q=QnD.不定9.明渠水流由急流过渡到缓流时发生()A.水跃B.水跌C.连续过渡D.都可能10.明渠均匀流只能出现在()A.平坡棱柱形渠道B.顺坡棱柱形渠道C.逆坡棱柱形渠道D.天然河道四、作图题(8 分,每题
4、 4 分)1.定性绘出如图4-1 中 ABC 面上的压力体图。2.定性绘出如图4-2 中的管道 abcd 段上以管道轴线为基准面的总水头线和测压管水头线。图 4-1 图 4-2 文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V
5、5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ
6、6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V
7、5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ
8、6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V
9、5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ
10、6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2五、计算题(50 分,其中第1、4 题每题 10 分,第 2、3 题每题 15 分)1.如图 5-1 所示,一铅直矩形闸门,已知h1=1m,h2=2m,宽b=1.5m,求作用于 AB
11、 闸门上的总压力及其作用点。图 5-1 2.如图 5-2 所示流速由v1变为 v2的突然扩大管中,如果中间加一中等粗细管段使形成两次突然扩大,略去局部阻力的相互干扰,即用叠加方法。试求:(1)中间管中流速为何值时,总的局部水头损失最小;(2)计算总的局部水头损失,并与一次扩大时相比较。图 5-2 3.如图 5-3 所示有一高度为50mm,速度v为 18m/s 的单宽射流水股,冲击在边长为1.2m 的光滑平板上,射流沿平板表面分成两股。已知板与水流方向的夹角为30 度,平板末端为铰点.若忽略水流、空气和平板的摩阻,且流动在同一水平面上,求:(1)流量分配Q1和Q2;(2)设射流冲击点位于平板形心
12、,若平板自重可忽略,A端应施加多大的垂直力P,才能保持平板的平衡,图5-4。文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1
13、I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档
14、编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1
15、I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档
16、编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1
17、I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档
18、编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2图 5-3 图 5-4 4.有一新的给水管道,管径d=400mm,管长l=100m,糙率n=0.011,沿程水头损失hf=0.4m,水流属于紊流粗糙区,问通过的流量为多少?文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2
19、 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2
20、C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2
21、 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2
22、C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2
23、 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2
24、C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2文档编码:CX2V2V5V9J2 HW7C1I8V3Q7 ZZ6B6P2C7F2