Question
In: Mechanical Engineering
Describe and discuss: The method required to specify inlet and outlet conditions for subsonic and supersonic...
Describe and discuss:
The method required to specify inlet and outlet conditions for subsonic and supersonic flows.
The reasons for having different source and dissipation terms in regions close to the wall and away from the wall.
The meaning of apparent stresses.
Conditions for the law-of-the-wall to be adequate when studying turbulent flows.
Solutions
samet mamat answered 2 years agoRelated Solutions
Consider a water storage tank with inlet and outlet streams that can be independently adjusted. The...
Consider a water storage tank with inlet and outlet streams that
can be independently adjusted. The storage tank has a
cross-sectional area of 100 ft2. Initially, the flow in
is equal to the flow out, which is 5 ft3/min. The
initial height of water in the tank is 4 ft and the height of the
tank is 10 ft. At t = 0 a ramp increase in the inlet flowrate is
made, so that Fi(t) = 5 + 0.25 t...
A mixer operating at steady state has two inlets and one outlet. - At inlet 1,...
A mixer operating at steady state has two inlets and one
outlet.
- At inlet 1, superheated water vapor at 2 bar and 200°C flows
with an average velocity of 1m/s
- At inlet 2, saturated water with a quality of x = 0.5 at 2 bar
flows with an average velocity of 1m/s
- At the outlet, saturated water with a quality of x = 0.7 flows
through a pipe 5 cm in diameter.
a) Calculate the mass flow...
A mixer operating at steady state has two inlets and one outlet. - At inlet 1,...
A mixer operating at steady state has two inlets and one
outlet.
- At inlet 1, superheated water vapor at 2 bar and 200°C flows
with an average velocity of 1m/s
- At inlet 2, saturated water with a quality of x = 0.5 at 2 bar
flows with an average velocity of 1m/s
- At the outlet, saturated water with a quality of x = 0.7 flows
through a pipe 5 cm in diameter.
a) Calculate the mass flow...
Create a configuration consists of two different mediums to describe the boundary conditions and specify how...
Create a configuration consists of two different mediums to
describe the boundary conditions and specify how the tangential and
normal components of the electric fields in one medium are related
to the components in other medium across the boundary.
A horizontal tapering pipe bend of 45 degree, has inlet diameter of 600 mm and outlet...
A horizontal tapering pipe bend of 45 degree, has inlet diameter
of 600 mm and outlet diameter of 300 mm. The pressure at its inlet
end is 150 KPa and discharge through the bend is 0.5 m3/s.
Determine the magnitude of the force exerted by the water on the
bend.
Conditions at the inlet to the nozzle of a Pelton wheel are p = 700psig and V = 15mph.
Pelton Wheel ProblemConditions at the inlet to the nozzle of a Pelton wheel are:Pressure, p=700 psigVelocity, V=15 mphThe jet diameter is d=7.5 in. and the nozzle loss coefficient is Knozzle=0.04. The wheel diameter is D=8 ft. At this operating condition, η=0.86. Calculate:The power outputThe normal operating speedThe approximate runaway speedThe torque at normal operating speedThe approximate torque at zero speed
Air flows in a pipe with a diameter, D=50 mm. The inlet conditions are: M1 =...
Air flows in a pipe with a diameter, D=50 mm. The inlet
conditions are: M1 = 3; total pressure,
P01 = 1000 kPa absolute; and temperature, T1 = 550 K. The friction
coefficient is, f = 0.004. The exit Mach number decreases with the
length of the pipe.
Plot the following while the exit Mach number to be
changed from 2.5 to 0.99 with decrements of
?M=0.01:
a) L, length of the pipe that is going to give the desired...
Consider a pipe (diameter of 50 mm) with air flowing through it. The inlet conditions are:...
Consider a pipe (diameter of 50 mm) with air flowing through it.
The inlet conditions are: Mach 3; total pressure = 1000 kPa and 550
K. The friction coefficient (f) is 0.004. The exit Mach number
decreases with the length of the pipe. Assume adiabatic, steady
flow.
Write a short Matlab code and plot the following,
while the exit Mach number changes from 2.5 to 0.99 with increments
of ?M=0.01. Find the length of the pipe that is going to...
Steam enters a turbine at a velocity of 200 m/s. The inlet conditions of the steam...
Steam enters a turbine at a velocity of 200 m/s. The inlet
conditions of the steam are at 4000 kPA and 500°C. The diameter of
the inlet pipe is 50 mm. The outlet conditions of the steam are 80
kPa and a quality of 1.0. The diameter of the outlet pipe is 250
mm. Determine the turbine power output in kJ/s assuming the kinetic
energy change and potential energy change are both negligible.
Calculate the change in kinetic energy to...
A steam turbine operates with steam at inlet conditions of 3.5 MPa and 3500 C. The...
A steam turbine operates with steam at inlet conditions of 3.5
MPa and 3500 C. The exit stream leave the turbine is at 0.8 MPa and
is known to contain a mixture of saturated vapor and liquid. The
steam rate through the turbine is 1000 kg/h. A (negligible)
fraction of exit stream is bled through a throttle valve to 0.10
MPa and is found to be 1250 C. The measured output of the turbine
is 100 kW.
a) Determine the...
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