A boundary layer is formed on the surface of the aerofoil presented in Task 2, a)...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A boundary layer is formed on the surface of the aerofoil presented in Task 2, a) By assuming a complete turbulent flow around the wing, calculate I. The boundary layer thickness at the trailing edge II. The total skin-friction drag on the wing III. The total pressure drag force b) Discuss possible design options that can alter the flow regime around the wing into laminar flow. Detail how the new flow regime, i.e. laminar flow, might influence the aerodynamics of the wing. 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 P₂ 0 0 8 10 12 14 Angle of attack (degree) Re 10×10 Figure 2: Variation of lift coefficient with angle of attack for NACA2415 0.14 0.12 0.1 0.08 0,06 0:04 0.02 0 6 -Re-5×10 4 16. 6 16 18 Re-60×10 8 10 12 14 Angle of attack (degree) -Re=5*10** Re=10*10** Re-60x10 Figure 3: Variation of drag coefficient with angle of attack for NACA2415 18 20 22 20 22 A boundary layer is formed on the surface of the aerofoil presented in Task 2, a) By assuming a complete turbulent flow around the wing, calculate I. The boundary layer thickness at the trailing edge II. The total skin-friction drag on the wing III. The total pressure drag force b) Discuss possible design options that can alter the flow regime around the wing into laminar flow. Detail how the new flow regime, i.e. laminar flow, might influence the aerodynamics of the wing. 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 P₂ 0 0 8 10 12 14 Angle of attack (degree) Re 10×10 Figure 2: Variation of lift coefficient with angle of attack for NACA2415 0.14 0.12 0.1 0.08 0,06 0:04 0.02 0 6 -Re-5×10 4 16. 6 16 18 Re-60×10 8 10 12 14 Angle of attack (degree) -Re=5*10** Re=10*10** Re-60x10 Figure 3: Variation of drag coefficient with angle of attack for NACA2415 18 20 22 20 22
Expert Answer:
Answer rating: 100% (QA)
I The Boundary Layer Thickness at the Trailing Edge The boundary layer thickness at the trailing edge is a measure of the thickness of the air flow that adheres to the surface of the aerofoil It is de... View the full answer
Related Book For
Posted Date:
Students also viewed these mechanical engineering questions
-
Write codes for the following task according to the new data sheet Q2. Get binary input from user at port B, say X. Assume 1 MHz a) Configure the timer to generate a square wave of time period 2X...
-
Write codes for the following task Q3. CTC mode Make a person counter. On each person entering the room, a positive edge can be sensed using any pin of the controller. After 10 counts, an LED is...
-
Identify the Standard Industrial Classification (SIC) codes for the following companies using the Security and Exchange Commission's EDGAR database at:...
-
Find I0 in the circuit using nodal analysis. WW- Io 2kQ SkQ 10 mA 2kQ
-
When an object is thrown straight up into the air, Newton's Second Law of Motion states that its height s (t) at time t is given by S(t) = s0 + v0t + 1/2gt2 where v0 is its initial velocity and g is...
-
On January 1, 20X7, Clyde County issued $100 million of 5%, 20-year bonds at 102. Interest is payable semiannually. The proceeds were restricted for the construction of a new county water...
-
Write a program using the programming language of your choice to implement the representation you designed for Review Question 3.3. Have your program solve the problem, and have it show on the screen...
-
Sarah Companys trial balance on December 31, 2016 (the end of its annual accounting period), included the following account balances before adjustments: Reviewing the companys recorded transactions...
-
Problem #2 The Fermi energy (in eV) of Na and Au are 3.15 eV and 5.54 eV, respectively at 300 K. Calculate the speed of electrons at EF for each metal. Calculate the density of states as states per...
-
A storage tank is connected to a pond (at atmospheric pressure!) by a length of 3-in pipe and two gate valves. From previous operating experience, it has been found that when the tank is at a...
-
Efficiency wages are: A) non existent B) wages higher than equilibrium wages C) lower than equilibrium wages D) equal to equilibrium wages
-
In 2006, members of Vietnamese families decided to buy a farm with six chicken houses in Georgia. A \($320,000\) down payment was required for the \($1,490,000\) Georgia Farm. The family members...
-
The four alternatives described below are being evaluated: The Incremental IRRs are: a. If the alternatives are independent, which one(s) should be selected if \(M A R R=15.5\) percent/year? b. If...
-
On November 25, 2013, Arkuszewski filed a petition for relief under Chapter 13 of the Bankruptcy Code. Arkuszewski did not file a certificate regarding a credit counseling briefing by December 9, 14...
-
Floyd Finch and Bruce Campbell were partners in a law firm starting in September 2009. After several years, relations between the two became strained, and Campbell sought to dissolve the partnership....
-
The debtor, Wastetech, LLC (Debtor), was a limited liability company organized under the laws of the State of Georgia in July 2016. The Debtor changed its name from NTC Waste Group, LLC, to...
-
Today, you sold 300 shares of Royal Bank of Canada (RY) stock. Your total return on these shares is 50.48%. You purchased the shares one year ago at a price of $80.72 per share. You received a total...
-
In 1995 Miguel purchased a home for $130,000. In 2000 he sold it for $170,000 and immediately purchased another one for $180,000, which he sold in 2007 for $235,000. How much taxable capital gain, if...
-
After preparing the budget for the second quarter based on the parameters in Case 5-38, Kim Klandon was not satisfied with the projected results and began to investigate the following alternatives....
-
Leslies Burgers operates and franchises fast-food restaurants specializing in grilled hamburgers and chicken sandwiches. The 2012 and 2013 income statements are as follows (in $000s): Required a....
-
Waterworks, Inc. makes plastic water bottles that are used by various beverage makers. Demand for bottles was so high during the year that the company made 255,000 bottles, 15,000 more than budgeted....
-
You work in the customer relations department of a company that makes plumbing supplies. The head of product development has just handed you the draft of installation instructions for a sliding tub...
-
Form small groups for this exercise on claim and adjustment letters. Have each member of your group study the following two letters. Meet and discuss your reactions to the two letters. How...
-
Study the excerpt from the Micron data flyer (2010, p. 9). Describe the designers use of alignment as a design principle. How effective is it? How would you modify it? Present your analysis and...
Study smarter with the SolutionInn App