A NACA 2412 airfoil with a chord of 0.64m is flying in an airstream of standard sea level conditions. The freestream velocity is 70 m/s. Given the lift per unit span is 1,254 N/m. By using the experimental data for NACA 2412 data plot in Figure Q1c, investigatethe angle of attack of the airfoil and the analyze the value of drag per unit spanof the airfoil. Given that at standard sea level, ?=1.789×10-5 kg/m.s

Q: A sphere 6.0 cm in diameter, D, is fixed in airflow (see Figure). The approach velocity, V, is 4.0…

A: 1.  Reynolds number Re =vDν 2. CD vs Reynolds number chart is used to get the value of drag…

Q: Boeing 737-600 flies at altitude 150o0m above sea level with speed 85 m/s and total drag coefficient…

A: Given: The altitude of flight, h = 15000 m The speed of flight, v = 85 m/s The drag coefficient, cf…

Q: Gas Dynamic Lab: 04: Select the correct answer for the following questions. 1. Lift is the component…

A: given; lift is the component of this force that is .......to the on coming flow direction.

Q: Draw the diagram of the dimensionless velocity profile and 11 for the boundary layer on the surface…

A: To discuss the dimensionless velocity profile in a boundary layer under a pressure gradient, we need…

Q: which then reduces to the function 1+x f(x, y) = 1. + y (a) Suppose that the changes in power x and…

A:

Q: Air at free-stream velocity of 8 m/s flows over a thin flat plate of length 5 m and width 1 m. A…

A: Solution:

Q: d = 1.49 kg/m-s. For steel, take p≈ 7800 kg/m³.

A: To determine the constant fall velocity of the steel sphere in glycerin using the modified…

Q: Air at 20 °C flows at V = 10 m/s over a flat plate of length L= 1.52 m and width W = 2 m. Calculate…

A:

Q: Consider an airfoil flying at a velocity of V.. = 31 m/s at an angle of attack of a = 3°. Boundary…

A: The separation occurs at,

Q: The drag on a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a…

A: First we need to calculate the speed of airBy equating the Reynolds no → Re model = Re prototype →…

Q: From a low pressure-center the pressure increases by 1 kPa eastward across a distance of 1000 km.…

A:

Q: 1. Air at a temperature of 300 K flows over one side of a flat plate of width 1 m at a velocity of…

A:

Q: 7.33. These phenomena are observed in a laboratory channel 1 m wide, and the indicated measurements…

A:

Q: A thin equilateral triangle plate with a = 104.5 cm (as shown below) is immersed parallel to a U =…

A: Thin equilateral triangle plate a =104.5cmV∞ =11.3 msT =20°C      ,    P =∆atmPair =1.2 kgm3  ,  μ…

Q: A skydiver jumps from (5.000x10^3) m with no parachute into a giant net. The mass of the skydiver is…

A: Given data: Mass of skydiver = m = 1.05 x 102 kg = 105 kg Projected Area = A = 0.45 m2 Pressure = P…

Q: Kindly give me both right solutions with clear calculations  The drag polar of a glider is given by…

A:

Q: Air at 20 °C flows at V = 10 m/s over a flat plate of length L= 1.52 m and width W = 2 m. Calculate…

A: Boundary layer thickness is the distance from the plate in a vertical direction up to where velocity…

Q: If a missile takes off vertically from sea level and leavesthe atmosphere, it has zero drag when it…

A: The drag force will be given as follows,…

Q: The original Flettner rotor ship was approximately 100 ftlong, displaced 800 tons, and had a wetted…

A: Given: The length of the Flettner rotor ship is L = 100 ft The diameter of the rotors is D = 9 ft…

Q: Skydiver Luke jumps with his parachute of diameter D = 12 m out of an airplane. The combined mass of…

A:

Q: Consider a business jet with the following characteristics: • Weight: 25208 kg • Wing area: 53.5 m^2…

A: Given Weight: 25208 kg• Wing area: 53.5 m^2• Wing span: 21.7 m• Cruise altitude: 10,000 m • Drag…

Q: In the 1930s, the US. Navy operated dirigibles. The largest was the US.S. Akron with a length of 785…

A:

Q: What happens if the required CL is larger than CLmax of your airfoil, and what speed regime is…

A: Given question: What happens if the required CL is larger than CLmax of your airfoil and what speed…

Q: Aircraft flying at an altitude of (3 Km ) with a velocity of (100 m/sec). The planform area of the…

A:

Q: A given symmetrical airfoil has a lift curve slope of 6 per radian. What is the angle of attack (in…

A: For a symmetrical airfoil, we have slope = 6 per radianlift coefficient = 0.4 The angle of attack…

Q: The drag equation for the Gofaster 172 is: D = 0.0003v2A. D is drag in pounds; v is airspeed in…

A:

Q: A 2 m diameter cylinder rotates at 1800 rpm in an air stream (p=1226 kg/m³) of 25 m/sec. Estimate…

A: Air density cannot be 1226 kg/m3 which is greater than density of water = 1000 kg/m3 . Hence,…

Q: A 1:20 scaled-down model of a hydrofoil is tested in a water channel, at a velocity of 0.179 m/s. At…

A:

Q: For those who think electric cars are sissy, Keio University inJapan has tested a 22-ft-long…

A: To find  The percentage of power expended against the air drag η. Given  The power generated by 8…

Q: The large block shown is x = 72 cm wide, y = 54 cm long, and z = 9.0 cm high. This block is passing…

A: Given:x=72 cm or 0.72 my=54 cm or 0.54 mz=9 cm or 0.09 mρ=1.43 kg/m3v=8.61 m/s

Q: Air equivalent to one of a standard height of 4000 m flows at 450 mi/h over a wing with a thickness…

A: Given, Velocity = V = 450 mi/h = 201.17 m/s Altitude = h = 4000 m Thickness = t = 18 cm = 0.18 m…

Q: Air at 20 °C flows at V = 10 m/s over a flat plate of length L= 1.52 m and width W = 2 m. Calculate…

A: Air temperature, T=20oC Air speed, V=10 m/s Length of the flat plate, L=1.52 m Width of the plate,…

Q: A ship is 125 m long and has a wetted area of 3500 m2.Its propellers can deliver a maximum power of…

A: Given data: The length of the ship, L = 125 m. The wetted area, A = 3500 m2. The delivered power, P…

Q: A sheet of plastic material 0.375" thick, with specific gravity 1.5, is dropped into a large tank…

A: Buoyancy force: When an object is placed in a fluid fully or half placed, then the force exerted by…

Q: A C-130 pilot desires to fly a low-level navigation mission at 4 n miles/ min (240 kn ground speed).…

A: Given Data The ground speed is: Gs=240 kn The wind speed is: Ws=20 kn Altitude is: h=10,000 ft The…

Q: Pu Wings at supersonic flows can be modeled as a flat plate that have constant pressure…

A: As upper pressure  is Pu=60,000 Pa and Lower surface pressure =150000 Pa Total pressure  Pt  acting…

Q: Estimate the drag force on the fuselage shown below for a cruising speed of 210 m/s at 10,000m.…

A: Given that, crusing speed, v=210 m/s,Height of the plane, H=10,000 m,   Drag force is given as,…

Q: desired to equip this airplane with turboprop engines with available power such that a maximi 602.6…

A:

Q: b) Figure Q1(b) shows a smooth flat plate that is 150 mm wide and 500 mm long placed longitudinally…

A: Drag force: The drag force is the force acting opposite to the direction of fluid flow. Due to its…

Q: Q4) Define the boundary layer, then find the thickness of boundary layer, shear stress, drag force…

A:

Moment of Inertia

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provide resistance in changing its state of velocity or motion for coming to a state of rest. In other words, Newton's first law of motion describes the law of inertia of a rigid body.