The well-known Fanno-line process deals with a perfect gas flowing in a duct of constant cross-sectional area with friction in which there is no heat transfer to or. Show that the maximum (static) temperature in Rayleigh flow occurs when the a T –s diagram for the system, showing the complete Fanno and Rayleigh lines. It is possible to obtain physical picture of the flow through a normal shock by employing some of the ideas of Fanno line and Rayleigh line Flows. Flow through a.
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Share buttons are a little bit lower. Published by Myrtle Warner Modified over 2 years ago. Control volume for flow across a normal shock wave. What do the intersection points of these two curves represent?
Fanno flow – Wikipedia
The Fanno line represents the states that satisfy the conservation of mass and energy equations. The Rayleigh line represents the states that satisfy the conservation of mass and momentum equations.
Aryleigh intersections points of these lines represent the states that satisfy the rayleivh of mass, energy, and momentum equations. How do oblique shock wave differ from the normal shock wave? Oblique shocks occur when a gas flowing at supersonic speeds strikes a flat or inclined surface. Normal shock waves are perpendicular to flow whereas inclined shock waves, as the name implies, are typically inclined relative to the flow direction.
Also, normal shocks form a straight line whereas oblique shocks can be straight or curved, depending on the surface geometry.
Calculate the stagnation pressure and Mach number upstream of the shock, as well as pressure, temperature, velocity, Mach number and stagnation pressure downstream the shock.
What are the main assumptions associated with Rayleigh flow? The characteristic aspect of Rayleigh flow is its involvement of heat transfer.
The main assumptions associated with Rayleigh flow are: Disregarding frictional losses, determine the velocity, static temperature and static pressure at the duct inlet. Wall friction is significant and should be considered when studying flow through long flow sections, e.
What are the main assumptions associated with Fanno flow? The characteristic aspect of Fanno flow is its consideration of friction. The main assumptions associated with Fanno flow are: The average friction factor fannp the duct is estimated to be if the Ma number at the duct exit is 0.
Admin office level 2. Air stagnation conditions are Compute. Here we confine the analysis. An Engineering Approach, 5th edition by Yunus A. Choking Due To Friction The theory here predicts that for adiabatic anx flow in a constant area duct, no matter what the inlet Mach number M1 is.
Chap 5 Quasi-One- Dimensional Flow.
Shock waves and expansion waves Rayleigh flow Fanno flow Assignment – ppt video online download
First Law of Thermodynamics-The Energy Equation 4 Work transfer can also occur at the control surface when a force associated with fluid normal stress. My presentations Profile Feedback Log out. Auth with social network: Registration Forgot your password?
Download ppt “Shock waves and expansion waves Rayleigh flow Fanno flow Assignment”. Mass and Energy Analysis of Control Volumes.