The half-thickness of the symmetric 4-digit NACA airfoil is Yt where t is the...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
The half-thickness of the symmetric 4-digit NACA airfoil is Yt √ с where t is the maximum actual thickness as a fraction of the chord and c is the chord. = 5 t [0.1 2969 The velocity profile at the chordwise location of maximum thickness of a NACAOOXX (last two digits are unknown) with chord 0.5 m and zero AOA is น U₂ 0.126 €/ 0.3515 (2)² +0.2843 (²)³ - - 0.1015 (2) ¹], 2 3 25 { # (+)-1()* ()*+#()* ( * ) − 1 ( ² ) ² − 7 ( 4 ) ³ + 11 ( 1 ) ² for y₁ < 5 12 = 1 for yw > S (Note: yw is the distance from the wall and 5 = 0.014 (x/c)1/2 m) Part A: What are the boundary layer displacement thickness, o, and the momentum thickness, 0 at the given chordwise location (i.e., the location of maximum actual thickness)? Assume constant density. Displacement Thickness: Momentum Thickness: 0 = XX = m m Part B: Knowing that the effective thickness at the given chordwise location is 94.54 mm, find the last two digits of the NACA airfoil designation. Note that t = XX/100. The half-thickness of the symmetric 4-digit NACA airfoil is Yt √ с where t is the maximum actual thickness as a fraction of the chord and c is the chord. = 5 t [0.1 2969 The velocity profile at the chordwise location of maximum thickness of a NACAOOXX (last two digits are unknown) with chord 0.5 m and zero AOA is น U₂ 0.126 €/ 0.3515 (2)² +0.2843 (²)³ - - 0.1015 (2) ¹], 2 3 25 { # (+)-1()* ()*+#()* ( * ) − 1 ( ² ) ² − 7 ( 4 ) ³ + 11 ( 1 ) ² for y₁ < 5 12 = 1 for yw > S (Note: yw is the distance from the wall and 5 = 0.014 (x/c)1/2 m) Part A: What are the boundary layer displacement thickness, o, and the momentum thickness, 0 at the given chordwise location (i.e., the location of maximum actual thickness)? Assume constant density. Displacement Thickness: Momentum Thickness: 0 = XX = m m Part B: Knowing that the effective thickness at the given chordwise location is 94.54 mm, find the last two digits of the NACA airfoil designation. Note that t = XX/100.
Expert Answer:
Related Book For
Posted Date:
Students also viewed these accounting questions
-
The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-5. Ivan's grandfather died and left a portfolio of municipal bonds. In 2012, they pay Ivan...
-
The following additional information is available for the Dr. Ivan and Irene Incisor family. The Incisors own a rental beach house in Hawaii. The beach house was rented for the full year during 2012...
-
Write a program for setting three bits of an unsigned char to 1. The function set 3bits should have four parameters: the unsigned char to be changed and the three bits which are to be set to 1. For...
-
Italian law prohibits the opening of certain retail stores without first obtaining a license from the local authorities. A request for a license might be denied if it was believed that the market is...
-
Select the correct answer for each of the following questions. 1. On July 1, 20X3, Barker Company purchased 20 percent of Acme Companys outstanding common stock for $400,000 when the fair value of...
-
Name the strongest benefit and the greatest weakness of agile development methodologies.
-
In 2013, Winslow International, Inc.s controller discovered that ending inventories for 2011 and 2012 were overstated by $200,000 and $500,000, respectively. Determine the effect of the errors on...
-
A truck travels due east for a distance of 1.4 km, turns around and goes due west for 6.6 km, and finally turns around again and travels 2.7 km due east. (a) What is the total distance, in...
-
Explain why expected net income is also called "accretion of discount."
-
< East Ferry Tool & Die, a manufacturer of parts for agricultural equipment, provides the following financial information for the most recent fiscal year (all costs are in thousands of dollars):...
-
We can test the significance of a simple regression either by using a t-test to test the slope coefficient or by using an F-test to test the significance of the model. How does our approach differ...
-
What are the advantages and disadvantages of using a nonlinear trend for forecasting?
-
What is the jackknife method? What advantages does it offer? Briefly explain how we use the jackknife method.
-
What are the advantages and disadvantages of using a linear trend for forecasting?
-
What are the advantages and disadvantages of using a simple moving-average technique for forecasting?
-
A conduit pipe company wants to implement a weekly review system for its products, considering that the best seller is the 1-inch pipe. This tube has a demand of 400,000 sections of 3 meters per...
-
Do the three planes x + 2x + x 3 = 4, X X 3 = 1, and x + 3x = 0 have at least one common point of intersection? Explain.
-
An isosceles triangle sign is designed to have a triangular printed area of 600 in.2 (shaded area with a base length of a and height of h in the figure). As shown in the figure, there is a 2 in. gap...
-
The area of a triangle ABC can be calculated by |rAB Ã rAC/2, where rAB and rAC are vectors connecting the vertices A and B and A and C, respectively. Determine the area of the triangle shown...
-
A simply supported beam is subjected to distributed loads w1 and w2 as shown. The bending moment as a function of x is given by the following equations: M(x) = RAx W1x2/2 for 0 M(x) = RAx w1a/2 (2x ...
-
For the finite square well potential, prove the formula for the transmission coefficient (7.83), calculate \(R\), and prove that \(|R|^{2}+T=1\). Equation 7.83:- T = |S|2 K3 = 42 2(+)2 cos KL + (2 +...
-
The data in Table 1 represent the first exam score of 10 students enrolled in Introductory Statistics. Treat the 10 students as a population. (a) Compute the population mean. (b) Find a simple random...
-
Consider an asymmetric potential barrier, with Calculate the tunneling probability \(T\) for energy \(U_{1} U_{0}\). 0, x < 0 U(x) = U> U, 0 < x 0, x > L. (7.96)
Study smarter with the SolutionInn App