Question: An airplane, of overall length 55 ft, is designed to fly at 680 m/s at 8000-m standard altitude. A one-thirtieth-scale model is to be tested

An airplane, of overall length 55 ft, is designed to fly at 680 m/s at 8000-m standard altitude. A one-thirtieth-scale model is to be tested in a pressurized helium wind tunnel at 20°C. What is the appropriate tunnel pressure in atm? Even at this (high) pressure, exact dynamic similarity is not achieved. Why?

Step by Step Solution

★★★★★

3.42 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

For air at 8000m standard altitude Table A6 take 0525 kgm3 153E... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

E-ME-FM (608).docx

120 KBs Word File

Students Have Also Explored These Related Mechanical Engineering Questions!

A scale model of an airplane wing section is tested in a wind tunnel at a Mach number of 1.5. The air pressure and temperature in the test section are 20,000 N/m2 and ??30?C, respectively. If the...

A wind tunnel draws in sea-level standard air from the room and accelerates it into a 1-m by 1-m test section. A pressure transducer in the test section wall measures Δp = 45 mm water between...

A subsonic airplane is flying at a 3500 m altitude where the atmospheric conditions are 72 kPa and 260 K. A pitot tube measures the difference between the static and total pressures to be 10 kPa....

Study guide 0, P ViV, famm) [T e10jog s [atu-tn fo=fs( J L (3315) 273K p T A Arrt V.4V, o The range of human hearing extends from approximately 20 Hz to 20 000 Hz. Find the wavelengths of these...

make a class to represent an object of type Passenger using the description provided below in UML Passenger - name : String - birthYear : int - weight : double - gender : char - numCarryOn : int +...

Research Project Final Draft Preview Rubric to follow Research Project Final Draft Print Analytical Writing Successful Acceptable Below Expectation Unacceptable Criterion Score Thesis Statement 4...

Last year, you sold 110,000 vehicles at a transaction price of $29,000. This product has a price elasticity E = 2. Last years vehicle had: Help please, show all work and answers. Thank you! Last...

Fill in the following answers in detail with correct information from the internet: Tasks: 1 DESCRIPTION Product Pictures: Product Name: TRACTORS model: DF504G3-E price: Key features: ENGINE: Rated...

Last year, you sold 110,000 vehicles at a transaction price of $29,000. This product has a price elasticity E = 2. Last years vehicle had: Help please, show all work and answers. Thank you! Last...

need help to write a Conclusion for this experiment , brief is provieded mentioning we observed this, we observed that, we obtained this.... is not enough. In this section, you should also highlight...

What factors should be considered when deciding between leasing an asset and borrowing funds to purchase the asset?

Refer to Exercise 19.28. Suppose that inspector 2 was unable to evaluate the second car from assembly line 4 and that inspector 1 missed car 1 from assembly line 3. In Exercise 19.28 A foreign...

Investment companies or mutual funds that continue to sell and repurchase shares after their initial public offerings are referred to as Group of answer choices Open - end Load No load Closed - end

1. An airline is considering an overbooking policy for its flights from LA to Las Vegas to avoid flying with empty seats. During the past month, the no-show experience has been: No-shows Percentage 0...

A village has six residents, each of whom has accumulated savings of $100. Each villager can use this money either to buy a government bond that pays 10 percent interest per year or to buy a...

JAVA: Write a program that takes a graph representing a map between cities and use Dijkstra's Algorithm to find the shortest path given a start and an end vertex. in java 1- Please comment on the...

An examination in finance has been taken by finance majors and also by some students from other majors. It is widely believed that the scores for both groups are normally distributed. A random sample...

Managers of an industrial plant want to determine which of two types of fuel, gas or electric, is more cost efficient (measured in cost per unit of energy). Independent random samples were taken of...

48. The Dixie Chicks opening the show implies that the Chili Peppers close it, given that the Black Eyed Peas showing up implies that neither Gnarls Barkley nor Rascal Flatts will perform. Translate...

You can purchase an optical scanner today for $400 The scanner provides benefits worth $60 a year The expected We of the scanner is 10 years Scanners are expected to decrease in price by 20% per year...

please do this question Consider the following table, which gives a security analyst's expected return on two stocks for two particular market returns. a. What are the betas of the two stocks? (Round...

Prove that the given argument is valid. First find the form of the argument by defining predicates and expressing the hypotheses ar the conclusion using the predicates. Then use the rules of...