Engineering, 07.11.2019 02:31, Kyliehayden05
Reproducing eqs. 15, 18 and 19 from the typed notes on turbulence for this course, the reynolds-averaged navier-stokes (rans) equations for a constant- density turbulent flow which is steady and whose mean flow is two-dimensional may be written as consider applying these equations to a turbulent boundary layer. the mean flow continuity equation displayed here has the same form as for a laminar boundary layer. we may assume, as usual, that the boundary layer is thin, which means the mean streamwise velocity (u) varies mainly with distance y from the wall. in addition, for this flow the reynolds stress components u, id v2 are generally of the same order of magnitude (a) with the statements made above, show how eqs. 2 and 3 can be simplified for the case of a turbulent boundary layer on a flat plate, at zero angle of attack (b) explain, in your own words, and with appropriate sketches, why uv is expected to be of opposite sign to u, especially near the wall.
Answers: 3
Engineering, 04.07.2019 18:10, tjeffers90028
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Engineering, 04.07.2019 18:10, selenamr
Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed. gi) ifn 1, what will happen to the material when transformed material when
Answers: 1
Engineering, 04.07.2019 19:10, Destinationz
Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?
Answers: 3
Reproducing eqs. 15, 18 and 19 from the typed notes on turbulence for this course, the reynolds-aver...
Computers and Technology, 30.11.2021 18:00
Physics, 30.11.2021 18:00
Social Studies, 30.11.2021 18:00
Mathematics, 30.11.2021 18:00