Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

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

Is the standard binary representation for positive integers

Is the standard binary representation for positive integers (e.g. cb(5) = 101) a uniquely decodeable code? Design a binary code for the positive integers, i.e., a mapping from n ∈ {1, 2, 3, . . .} to c(n) ∈ {0, 1} +, tha ...

Derive the ideal soliton distribution at the first

Derive the ideal soliton distribution. At the first iteration (t = 0) let the number of packets of degree d be h 0 (d); show that (for d > 1) the expected number of packets of degree d that have their degree reduced to d ...

A find the tangent line approximation to cos x at x pi4b

(a) Find the tangent line approximation to cos x at x = π/4. (b) Use a graph to explain how you know whether the tangent line approximation is an under- or overestimate for 0 ≤ x ≤ π/2. (c) To one decimal place, estimate ...

Suppose that a 920 kg car is traveling at 20 ms its brakes

Suppose that a 920 kg car is traveling at +20 m/s. Its brakes can apply 4596 N of force. What is the minimum distance required for the car to stop?

The thermal activation and photo-excitation energies of one

The thermal activation and photo-excitation energies of one and two electrons trapped to the double or 2-electron sulfur donor were measured by Sah and his graduate students in 1971 by observing the photo and dark capaci ...

In 2011 the greenland ice sheet was melting at a rate

In 2011, the Greenland Ice Sheet was melting at a rate between 82 and 224 cubic km per year. (a) What derivative does this tell us about? Define the function and give units for each variable. (b) What numerical statement ...

1 the electron affinity to an isolated neutral si atom is

1. The electron affinity to an isolated neutral Si atom is 1.39eV while to a neutral Si crystal it is 4.02eV. Why is it larger in S i crystal? Give a simple explanation based on electrostatic or Coulomb force. 2. Draw th ...

1 for a crystal of finite size it is found that there are

1. For a crystal of finite size it Is found that there are 100 allowed electron energy levels at the energy E 1  in the conduction band and that the Fermi energy lies at E 1 , i.e. E F -E 1 . How many electrons are there ...

What three functions is the immune system organized to

What three functions is the immune system organized to fulfill? What are the two subdivisions of the immune system, and what is the difference between them?

Asignment emtquestion 1the value of eat prho 2phi 40oz

Assignment: EMT Question 1: The value of Eat P(ρ = 2,φ = 40 o ,z = 3) is given as = 100aρ- 200aφ + 300azV/m. Determine the incremental work required to move a20 μC charge a distance of 6μm: a. in the direction of aρ; b. ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen