Crowdly
Add to Chrome
ENGG252 (DB225) Engineering Fluid Mechanics
Looking for ENGG252 (DB225) Engineering Fluid Mechanics test answers and solutions? Browse our comprehensive collection of verified answers for ENGG252 (DB225) Engineering Fluid Mechanics at moodle.uowplatform.edu.au.
Get instant access to accurate answers and detailed explanations for your course questions. Our community-driven platform helps students succeed!
IF-185 A pump moves water from a reservoir to another reservoir through a piping system at a rate of 0.15 m^3/min. Both reservoirs are open the atmosphere. The elevation difference between the two reservoirs is 35 m and the total head loss is estimated to be 4 m. If the efficiency of the motor-pump unit is 65 percent, the electrical power input to the motor of the pump is
0%
0%
0%
0%
100%
View this question
DAM-127 Heat transfer coefficient is a function of a nondimensional parameter, which is functions of viscosity mu, specific heat c_p (kJ/kg.K), and thermal conductivity k (W/m.K). This nondimensional parameter is expressed as
0%
0%
0%
0%
0%
View this question
IF-168 Consider laminar flow of water in a 0.8-cm-diameter pipe at a rate of 1.15 L/min. The velocity of water halfway between the surface and the center of the pipe is
0%
0%
0%
100%
0%
View this question
A steady, two-dimensional velocity field is given by V = (u, v) = (2.5-1.6x)i + (0.7+0.8y)j where the x- and y-coordinates are in meters and the magnitude of velocity is in m/s. The volumetric strain rate in 1/s is
0%
0%
0%
0%
0%
View this question
DAM-129 The drag coefficient CD is a nondimensional parameter and is functions of drag force F_D, density rho, velocity V, and area A. The drag coefficient is expressed as
100%
0%
0%
0%
0%
View this question
DAM-135 Consider a boundary layer growing along a thin flat plate. This problem involves boundary layer thickness delta, downstream distance x, free-stream velocity V, fluid density rho, and fluid viscosity mu. The number of expected nondimensional parameters Pi’s of this problem is
0%
0%
0%
100%
0%
View this question
DAM-122 The primary dimensions of kinematic viscosity is
0%
100%
0%
0%
0%
View this question
DAM-128 Nondimensional heat transfer coefficient is functions of functions of convection coefficient h (W/m^2.K) thermal conductivity k (W/m.K), and characteristic length L. This nondimensional parameter is expressed as
0%
0%
0%
0%
0%
View this question
DAM-131 A one-third scale model of a car is to be tested in a wind tunnel. The conditions of the actual car are V = 75 km/h and T = 0 degree-C and the air temperature in the wind tunnel is 20 degree-C. In order to achieve similarity between the model and the prototype, the wind tunnel velocity should be (The properties of air at 1 atm and 0 degree-C: rho = 1.292 kg/m^3, nu = 1.338x10^-5 m^2/s ; The properties of air at 1 atm and 20 degree-C: rho = 1.204 kg/m^3, nu = 1.516x10^-5 m^2/s)
0%
0%
100%
0%
0%
View this question
DAM-124 The primary dimensions of the gas constant over the universal gas constant R/R_u is
0%
0%
0%
0%
0%
View this question