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(清华大学2006--2007学年春季学期期中考试试题)A fireboat-pump delivers water to a vertical nozzle with a 3：1 diameter ratio，as in Fig．6-38．If friction is neglected and the flow rate is 0．02 m3／s，how high will the outlet water jet rise？
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更多“（清华大学2006－－2007学年春季学期期中考试试题)A fireboat－pump delivers water to a vertical n”相关的问题
第1题
(清华大学2006--2007学年春季学期期中考试试题)On a sea-level standard day，a pressure gage，moored below the surface of the ocean(SG=1．025)，reads an absolute pressure of 1．5 MPa．How deep is the instrument？
第2题
(清华大学2006--2007学年春季学期期中考试试题)Consider incompressible flow in the entrance of a circular tube，as in Fig．6-39．The inlet flow is uniform，u1=U0．The flow at section 2 is developed pipe flow．Find the wall drag force F as a function of(p1，p2，ρ，Uo，R)if the flow at section 2 is：
第3题
(清华大学2006--2007学年春季学期期中考试试题)The period of oscillation T of a water surface wave is assumed to be a function of density p，wavelengthλ，depth h，gravity g，and surface tension 7．Rewrite this relationship in dimensionless form．What results if γis negligible？
第4题
(清华大学2006--2007学年春季学期期中考试试题)as in Fig．4-62，A liquid jet of velocity Vj and area Aj strikes a single 180°bucket on a turbine wheel rotating at angular velocity Ω．Find an expression for the power P delivered．At what Ω？is the power a maxi mum？How does the analysis differ if there are many buckets，so the jet continually strikes at least one？
第5题
(清华大学2006--2007学年春季学期期中考试试题)A football，meant to be thrown at 60 mi／h in sea--level air(ρ=1．22 kg／m3，μ=1．78E-5 N s／m2)is to be tested using a one—quarter(1／4)scale model in a water tunnel(ρ=998 kg／m3，μ=0．0010 N s／m2)．For dynamic similarity，what is the ratio of prototype force to model force？
第6题
(清华大学2006—2007学年春季学期期中考试试题)Giyen the steady，incompressible velocity distribution V=x+y)i+C(x+y)j+0k，where C is a constant，if conservation of mass is satisfied，find the value of C．Write down the strain rate tensor Sij=0．5(uij+uji)and the vorticity vector(▽×V)．
第7题
(清华大学2005—2006学年第1学期期末试题)图9-113所示电路能否发生谐振？若能，则谐振频率是多少？
