Ask Question, Ask an Expert


Ask Physics Expert

problem1)(a) State the Prandtl Glauert’s rule and derive the expressions for the coefficients of pressure, lift and moment. In a low speed in compressible flow, the peak coefficient of pressure of an NACA 0009 airfoil is -0.25. Estimate the critical Mach number for this airfoil using Prandt’l Glauret’s rule.

b) prepare about quasi-one-dimensional flow. Air flowing in a duct has a velocity of 300 m/s, pressure 1.0 bar and temperature 290 K taking=1.4, R=287 J/kgK. Determine

(a) Stagnation pressure and temperature

(b) Velocity of sound in the dynamic and stagnation conditions.

(c) Stagnation pressure assuming constant density.

problem 2)a) A supersonic flow with Mach number 2.8 and pressure of 1 atm is deflected through an angle such that the Mach number behind the shock is 1.45. Find the angle of deflection and the pressure behind the shock.

b) What is a supercritical airfoil? How is it useful in increasing the drag divergence Mach number?

c) describe the term area rule. How does it affect the performance of an airplane?

problem 3)a) For the flow field shown in figure 3 determine βr, M2 and M3 if M1 = 2.0 for βi = 400.

1005_Flow field.jpg

b) describe what you understand by linearization.

problem 4)a) Derive velocity potential equation for a two-dimensional, steady, irrotational, isentropic flow.

b) Argon is stored in a reservoir at 300K ; Determine stagnation enthalpy and velocity of sound in it =1.658 and the molecular weight of argon is 39.94.

problem 5)a) At a given point in a flow T = 300 K, P = 1.2 atm and V = 250 m/s. At this point find out the corresponding values of Po, To, P*, T* and M*.

b) The flow just upstream of a normal shock is given by P1 = 1 atm, T1 = 288 K and M1 = 2.6. find out the following properties at downstream of shock: P2, T2, ρ2, M2, Po2 and To2.

problem 6)a) Consider a supersonic flow with M = 2, P = 1 atm, T = 288 K. This flow is deflected at a compression corner through 20º. find out M, P, T, Po and To behind the resulting shock wave. Take the wave angle to be 53.4º.

b) A supersonic flow with M1 = 1.5, P1 = 1 atm and T1 = 288 K is expanded around a sharp corner through a deflection angle of 15º. find out M2, P2, T2, Po2 and To2. Use the Prandtl-Meyer function and Mach number chart here.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M94451

Have any Question? 

Related Questions in Physics

Find the maximum velocity for the overturn ofa car moving

Find the maximum velocity for the overturn ofa car moving on a circular track of radius 1000 m. The coefficient of friction between the road and tyre is 0.02.

From the top of a cliff a person throws a stone straight

From the top of a cliff, a person throws a stone straight downward. The initial speed of the stone just after leaving the person's hand is 8.9 m/s. (a) What is the acceleration (magnitude and direction) of the stone whil ...

Anbsp1000 kg aircraft goingnbsp25 ms collides with

A 1000 kg aircraft going 25 m/s collides with a 1500kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision. If they skid for 6.6 seconds before stopping, how far d ...

Let x be an ensemble with ax 0 1 and px 0995 0005

Let X be an ensemble with A X = {0, 1} and P X = {0.995, 0.005}. Consider source coding using the block coding of X 100 where every x ∈ X 100 containing 3 or fewer 1s is assigned a distinct codeword, while the other xs a ...

Plot the following experimental equilibrium values for

Plot the following experimental equilibrium values for trichloroethylene, TCE, in water at 20°C. Determine the Henry's law constant for this TCE-water system, with H in atm/(g mol/m 3 ).

Practice problems in trigonometryconvert the following

Practice Problems in Trigonometry Convert the following angles to radian measures. 1. 60° 2. 53° 3. 37° Find the sine, cosine and tangent values of the following angles 4. sin 60° 5. cos 60° 6. tan 60° 7. sin 53° 8. cos ...

A using a calculator or computer sketch the graph of y 2ex

(a) Using a calculator or computer, sketch the graph of y = 2ex + 5e-x for -3 ≤ x ≤ 3, 0 ≤ y ≤ 20. Observe that it looks like the graph of y = cosh x. Approximately where is its minimum? (b) Show algebraically that y = 2 ...

Is there any relationship between the probability

Is there any relationship between the probability distribution of the time taken for all trajectories to coalesce, and the equilibration time of a Markov chain? Prove that there is a relationship, or find a single chain ...

If the top row of pascals triangle which contains the

If the top row of Pascal's triangle (which contains the single number ‘1') is denoted row zero, what is the sum of all the numbers in the triangle above row N?

On the surface of planet mars the acceleration of gravity

On the surface of planet Mars the acceleration of gravity is estimated as g = 3.7 m/s2. Find the potential energy of a 7 kg stone at the height of 8 m above Mars' surface.

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro