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Q1:As "task1.m" script runs from "P2amain.m" script, it must output the following two plots (no user inputs required): (i) The "stagnation streamline" plot (the shape of the semi-Rankine body: r/R) in the range of: 09⁰, 179° (upper half surface) and = 181°, 191°, 201°,... 351° (lower half surface). 19°, 29°,. (ii) The "pressure coefficient" plot (the surface pressure distribution over the semi-Rankine body: C₂) in the range of: 0=9°, 19°, 29°,... 179° (upper half surface) and = 181°, 191°, 201°,... 351° (lower half surface). (Note) the C, plot in aerodynamics is "negative values in positive y coordinate direction" (rule of thumb). This will require you to modify the y axis data direction ("flip-flop" of the y coordinate) when you perform C, plot in MATLAB.See Answer
Q2:Part 1: Assume the A320neo is currently flying with an airspeed (TAS) of 250 kn at an altitude of 5000 ft and is climbing. The throttle factor is set at F, = 0.85. The mass of the aircraft is 78.5 tonnes. Determine: a) the climb angle and rate of climb. b) the steepest climb angle and maximum rate of climb. c) compare the current airspeed of 250 kn with those required to achieve the steepest climb angle and maximum rate of climb.See Answer
Q3:Part 2: The aircraft reaches an altitude of 30000 ft and begins cruising. The mass of the aircraft at the start of cruise is 78 tonnes and the fuel load that can be used for cruise is 12 tonnes. a) assuming a cruise at constant altitude, determine the cruise range as well as the optimal airspeed and Mach number at both beginning and end of cruise. b) assuming cruise at a constant airspeed (given by the optimal airspeed at the beginning of cruise) with a drag ratio n = 3, determine the cruise range as well as the altitude the aircraft reaches at the end of cruise. c) assuming cruise at a constant airspeed (given by the optimal airspeed at the beginning of cruise), what would be the tailwind speed required to increase the range to 4700 km (assume tailwind remains constant throughout the cruise)?See Answer
Q4:t Figure 8.4 shows a drag polar plot of a glider, with C₁/CD and C2/C3 superimposed as func- ons of the lift coefficient. For a given weight, W, wing area, S and altitude, h (this determines the density), by selecting a range of values for angle of attack, it is possible to compute: C₁/CD, C/C, V and RD. The corre- sponding performance data are shown in Table 8.1. The glider selected for this example is a relatively poor one by modern standards. Its lowest flight path angles are high compared to those achievable with modern gliders. Trimmed lift-to-drag ratios of 40.0 to 50.0 have already been achieved, yielding descent angles as low as 1.2 degrees! Despite this, the reader is asked to verify that the approximations of Eqns (8.22) - (8.24) are quite good! The performance results of Table 8.1 are plotted in Figure 8.5. The reader is asked to check out the significance of the points labeled A, B and C in Figures 8.4 and 8.5. These very important points are discussed next.See Answer
Q5:The reader is asked to show, that the drag polar of Figure 8.4 can be approximated by a parabolic drag polar with A=15.6, e=0.82 and C= 0.0150. The speed for best glide performance, using sea-level density data can then be computed from Egn (8,29) as 20.9 m/sec. This agrees closely with the data of Table 8.1 which use the actual drag polar.See Answer
Q6:This is the first part of a project in Aerodynamics. Project is about creating a flying device which uses aerodynamics of a maple seed You have to find information about maple seeds You have to submit a one page document in APA format which describes: (Problem statement) which includes (Inspiration, design, use, how) Some information regarding the project topic: https://www.imnovation-hub.com/science-and-technology/biomimetic- drones/#:~:text=A%20drone%20inspired%20by%20the,range%20of%20a%20lightweight%20drone https://m.youtube.com/watch?v=Rm_KoTBtVz4&pp=ygUSbWFwbGUgc2VIZHMgZmx5aW5nSee Answer
Q7: Question 1. Calculate the temperature (in Kelvin) at an altitude of 9665 metres above sea level, assuming ISA atmosphere: O -47.82 O 0.0065 O 350.82 O 12 O 225.18 Not answered Question 2. Calculate the temperature (in Kelvin) at an altitude of 11471 metres above sea level, assuming ISA atmosphere: 0.0065 216.50 O 3 O 362.56 O-59.56 Not answered SESSMEN sity The Questions Question 3. Calculate the pressure (in Pascals) at an altitude of 5192 metres above sea level, assuming ISA atmosphere: O -19 O 52611 O 90423 O 53 101325 [a2-alkarbi] UFMFRU-15-1 DEWIS E-ASSE Not answered The Questions Question 4. Calculate the air density (in kg per cubic metre) at an altitude of 12504 metres above sea level, assuming ISA atmosphere: O 81.64 O 0.29 O 0.36 O 288.00 O-80.99 [a2-alk UFMFRU-15-1 DEWIS E-AS Not answered The Questions Question 5. An aircraft is flying at an altitude of 8364 m above sea level. Its airspeed with respect to the surrounding air is 137 m/s. Assuming ISA conditions, calculate the dynamic pressure (in Pascals). O 1965.1 O 288 -39.37 4716.52 O-928.7 OFMPRU-15-1 DEWIS E-ASSESSMEN Not answeredSee Answer
Q8:Evaluation and Discussion 8. Task A: A1: A2: A3: A4: A5: A4: A5: Why pressure distribution on the upper and lower surface are the same for NACA0015 airfoil at zero AOA? Why there is a difference in pressure distribution between the upper and lower surface for cases you simulated in this Task? Which sides (upper or lower surface) has higher pressure, and why? Do you see the difference in pressure (between upper and lower surface) changes with AOA? Why? Describe the pressure distribution on the upper surface by identifying the stagnation point, suction peak, and adverse pressure region. What is Cp? How do we compute the lift coefficient of the aerofoil from the Cp distribution? (15 marks)See Answer
Q9:10. Task C: C1: C2: C3: Based on your simulation result, identify regions where boundary layer is laminar, turbulent and transition. How do you identify transition point and from you simulation result discuss how they are affected by AOA and Re. How to you identify separation point and discuss how they are affected by AOA and Re. (20 marks)See Answer
Q10:11. Task D: D1: D2: D3: D4: Why the sectional lift coefficient C, is zero at the wing tip? Why the sectional lift coefficient C₁ is almost "flat" near the mid-section of the wing? What is the cause of C, distribution? Do you think the C₂ distribution is elliptical? If not suggest ways to make it elliptical. Use a few data point to verify the induced drag formula. (20 marks)See Answer
Q11:Question 1 (10 marks) (2022 Paper) You are working as a flight test engineer at SUSS Research Flight Test Centre. During the low speed phase of the test program for a UAV program, pressure at two locations were measured. The first pressure is known to be at the stagnation point, and the second is at the edge of the boundary layer above the wing. You know that the UAV is flying at an altitude of 500 m under the ISA condition. The two pressure readings are: Point 1: Stagnation Pressure, pi=96,920.125 N/m² Point 2: Static Pressure just outside boundary layer, p2=94,454.204 N/m² Question la Apply the flight test data provided to calculate the velocity of the UAV, and determine the Mach number and the Reynolds Number of the UAV (assume that the characteristic length is 0.2 m and the Dynamic Viscosity is 1.7737 X 10³ kg/ms). Question lb Verify the compressibility of the flow over the UAV, and state whether the density can be treated as a constant. Question le Examine if Bernoulli's equation could be applied to determine the local flow velocity at point 2, and state the reason(s). Question Id Appraise the flow velocity at the point 2. Question le Appraise the flow around the point 2 to determine the surface pressure on the wing, directly below point 2.See Answer
Q12:Question 2 (10 marks) (2022 Paper) Question 2a The Aerodynamic characteristic of a NACA0015 airfoil is simulated using a Potential Method. The Cp and Tw distributions are presented in Figure Q2(a)-1 and Q2(a)-2 of Appendix 1 respectively. Question 2a(i) Verify boundary layer transition occurrence by identifying the location of the transition Point. Question 2a(ii) Base on the data presented, provide TWO (2) reasons to verify your answer in Q2a(i). Question 2a(iii) Apply the learnt airfoil content, is NACA0015 a symmetrical airfoil? Question 2a(iv) Appraise the Lift-curve Slope (Cle) of this airfoil. Question 2b The airfoil presented in Q2(a) above is used for the design of a wing with Aspect Ratio of 10. Apply the data to calculate the Lift-curve Slope (Cla) of the wing. You may assume the span efficiency factor to be 1.0.See Answer
Q13:EG-194 Introduction to Aerospace Engineering Assignment 1, 2023 This assignment should take the average student around 10 hours to complete to a good standard. It is expected that six to eight hours will be required to find, read and understand relevant material from a variety of sources. A well-written report that adheres to the format described below will probably take between two to four hours to write. The assignment title is: Discuss the advantages, disadvantages and prospects for aircraft using fuel-cells Notes, Format and Submission Fuel cells, using hydrogen or ammonia as a fuel for example, work like batteries, but they do not run down or need recharging, which is an option for future aircraft to reduce the emissions such as CO2. For example, the company ZeroAvia conducted a 10-minute test flight using an engine that converts hydrogen fuel into electricity to power one of the plane's two propellers. You are required to write a two-page paper on the topic of fuel-cell powered aircraft that includes a technical overview of one or more designs and details of how the design(s) address concerns such as life-circle assessment, safety, the environment or sustainability. There is no requirement to cover all the concerns listed. The paper should start with an introduction to the topic and briefly describe the concept of fuel-cell-powered aircraft. Additionally at this stage whichever life-circle assessment, safety, environmental and sustainability will play a part later in the paper should be explained in general. The main part of the paper should use one or more examples from current developments or research that relate to the essay topic and identify progress in the area. With any approach, there are normally advantages and disadvantages. Authors will usually tell you the advantages but you should also consider what the disadvantages of the approach are (why is the approach not being used at this time?). Also, consider how is the design addressing the area(s) of concern that you have focussed on? The paper should conclude by drawing together the issues described and suggesting the likely prospects for achieving the goals. A successful response to this assignment would be a well-organised and argued case that displays an understanding of the underlying issues related to aerospace engineering. You will have to be precise and selective with what you include as the format instructions below limit the space you have available. The assignment must be written in a word processing package and submitted electronically. The MAXIMUM LENGTH is 2 pages, using 12-point Times New Roman font and A4 paper size, all MARGINS must be at least 4 cm and single line spacing must be used. All pages should have a header with your name on the left and your student number on the right. The first page should have the assignment title (given above) as the title, in bold type. Any pictures or diagrams included used must be within the page and margin constraints given above. The length constraints mean that only a small number of sources are likely to be cited - any references should be included onSee Answer
Q14:5. Format of the report The report has a strict 4-page limit. Anything above four pages will be penalised according to the marking guidance. The report should contain a front sheet (which will not count towards the page limit), containing the following information only: Name Student ID Module Code Module Title • Coursework Name The report should be written as a formal lab report with appropriate headings. Do not include a table of contents or appendix. Do not repeat large sections from this handout in relation to the background or the procedures. As a rough guide, approximately three pages should cover the raw and processed data, with one page to cover a discussion of the flow physics. Note that the raw data should be presented to you in the units it was. Appropriate references are essential to show that you have engaged with and understood the data and the theory. The required format is single-spaced Times New Roman font, size 12 pt. The page margins should be set to normal, i.e. 2.54 cm at Top/Bottom/Left/Right.See Answer
Q15:Question 1 2 pts Question 1: In a wind tunnel test of flow over a wing section, air enters the test section at a speed of 54 m s1 and a pressure of 942 kPa. Assuming Bernoulli's principle applies to the flow, what is the pressure at the stagnation point on the wing surface if the air density is 1.16 kg m 3? The answer should have units of kPa.See Answer
Q16:Question 2 4 pts Question 2: An aircraft weighs 91 kN and it has a maximum coefficient of lift of 1.51. Its drag equation is given by: CD = 0.03 +0.042 C How much drag will the aircraft create is it flies at stall speed with lift equal to weight? The answer should have units of kN.See Answer
Q17:Question 3: A 1/12th scale model of an aircraft was tested in a wind tunnel under sea level standard conditions. The following data was obtained. Air Speed (m s ¹) 10 15 20 Angle of attack (degrees) 0 2 4 Lift (N) 9.9225 37.20938 92.61 Drag (N) 0.8153723 2.156077 4.690329 Pitching moment (Nm) -2.20813 -5.86508 -12.0209 The wing area of the full sized aircraft is 97.9 m² and the wing aspect ratio is 6.5. What value does the coefficient of moment about the aerodynamic centre have?See Answer
Q18:Question 4: A glider weighs 52 kN and has a drag equation of CD = 0.023 +0.021 C. What is the minimum glide angle of the glider? Your answer should be in degrees.See Answer
Q19:Question 5: An aircraft climbs at an angle of 15°. The weight of the aircraft is 114 kN and its wing area is 68 m². The aircraft's drag equation is given by CD 0.035 +0.025 C. If the engines of the aircraft produce 55 kN of thrust during the climb what is the fastest equivalent airspeed the aircraft could be climbing at? The answer should have units of m s 1. =See Answer
Q20:Question 6: The thrust required for a cargo aircraft to fly straight, level and steady was measured. In each measurement the speed and altitude of the aircraft was the same but the weight changed. When the weight was 130 kN, empty weight with no cargo and little fuel, the thrust required was T = 18.3 kN. When the weight was 30 kN above the empty weight the thrust required increased by dT = 0.43 kN (Total thrust in this case is T+ dT kN). What (total) thrust would be required to fly at the same speed and altitude if the weight was 50 kN above the empty weight? The answer should have units of kN.See Answer

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