Fairings Cylinder

Q: Width velocity of 50 m/s. Determine the drag force acting on upper side of the plate when: Engine…

A: Engine oil at 40°C  L = 20 m  w = 3m   v= 50 m/s  Properties of engine oil at 40°C  ρ = 876 kg/m3, μ…

Q: During a high Reynolds number experiment, the total drag force acting on a spherical body of…

A: Given data, From stokes equation,

Q: Determine the skin drag and power in Problem 5, if the surface of the tanker has a roughness of 1.5…

A:

Q: By which part of the Aircraft is mainly produced the "Induced drag" ??

A: Lift causes induced drag, which is unavoidable.

Q: To reduce the drag coefficient and thus to improve the fuel efficiency, the frontal area of a car is…

A:

Q: 6. During a winter day, wind at 70 km/h, 5°C, and 1 atm is blowing parallel to a 4-m-high and 15…

A:

Q: A shuttlecock is launched from the ground with an initial speed of 33.3163 m/s at an angle of 8.1977…

A:

Q: What is the effective angle of attack ? What is the induced drag ? Show them by drawing a sketch and…

A:

Q: To reduce the drag coefficient and thus to improve the fuel efficiency, the frontal area of a car is…

A: Given that, The drag force on the car will be –

Q: In flow over bluff bodies such as a cylinder, how does the pressure drag differ from the friction…

A: The pressure drag is generated due to the shape of the object and it depends on the flow of…

Q: A 70 kg bicyclist is riding her 15 kg bicycle downhill on a road with a slope of 8º without pedaling…

A: terminal velocity is reached  when there is no external force acting on the body that is in this…

Q: A small aircraft has a wing area of 37 m2, a lift coefficient of 0.45 at takeoff settings, and a…

A: Given data Wing area = 37 m2 Lift coefficient = 0.45 Total mass = 4300 kg Speed = 300 km/h =83.33…

Q: A streamlined experimental solar car has a frontal area of 0.48 m² and an expected coefficient of…

A:

Q: What is the difference in force needed to stabilize a flat plate being sprayed with a jet of water…

A: The force exerted by jet depends on the area of jet or nozzle, velocity of jet coming out through…

Q: An airplane is cruising at a velocity of 950 km/h in air whose density is 0.526 kg/m3. The airplane…

A: step-1   given data      velocity (v) = 950 km/hdensity of air = 0.526 kg/m3area of wing (A) = 90…

Q: When the "Area rule" is applied, which aerodynamic coefficient it affects the most? O drag…

A: According to area rule two panes with same longitudinal cross sectional area distribution have same…

Q: a) Why doesn’t the surface roughness affect the pressure drop in a laminar pipe flow?  b) For bluff…

A: (a) In Laminar flow, we assume that the velocity near the boundary becomes zero because of no slip…

Q: What is the effect of Reynolds number on drag coefficient , lift coefficient and L/D ratio

A: The lift-to-drag proportion increases as the Reynolds number increases for both the airfoils…

Q: Consider experimental images of air flow over symmetrical airfoils shown in Figure 1. Discuss and…

A: We will answer the first question since the exact one wasn't specified. Please submit a new question…

Q: To reduce the drag coefficient and thus to improve the fuel efficiency, the frontal area of a car is…

A: Given details: Ai=18 ft2Ao=15 ft2d=12000 mi=12000×5280=63360000ftv=55…

Q: A 0.80-m-diameter, 1.2-m-high garbage can is found in the morning tipped over due to high winds…

A: Draw diagram of can when it is just to lift about point P, Given

Q: What effect does increasing the Reynolds number have on coefficient of lift and drag?

A: we know that Reynolds no. is defined as the ratio between flow inertia and viscosity.

Q: In a well designed wing, which of the following would best describe the lift to drag ratio? O a.…

A:

Q: ler angles of attack, which is associated wi Diffuser effect Дифузорно течение O a decrease in Lift…

A: Solution ;

Q: What is the effect of streamlining on (a) friction drag and (b) pressure drag? Does the total drag…

A: Effect of streamlining on:

Q: During a winter day, wind at 70 km/h, 5°C, and 1 atm is blowing parallel to a 4-m-high and 15-m-long…

A: Velocity of wind = 70 km/h = 19.444 m/s The pressure of the air = 1 atm Length of the wall = 15m…

Q: Which parameter does not affect an earlier occurrence of the transition of Laminar flow to turbulent…

A: Laminar flow is the characteristics of flow that occurs when a fluid flows in parallel layers,…

Q: Bill gets a job delivering pizzas. The pizza company makes him mount a sign on the roof of his car.…

A: The Work drag  is        W=12ρairAV2CDL where    CD = 0.94 Average speed, V =45 mph…

Q: is the drag coefficient 2 or 0.2?

A: Yes from figure we can see that drag coefficient at 80000 is 0.2 not 2

Q: A 2-m-long, 0.2-m-diameter cylindrical pine log (density = 513 kg/m3) is suspended by a crane in the…

A: Given, The density of the log, ρ=513 kg/m3 The diameter of the log, D=0.2 m The length of the log,…

Q: During flow over a given body, the drag force, the upstream velocity, and the fluid density are…

A: Drag force is the resistive force exerted by a fluid due to its motion. Drag force is supposed to…

Q: What is flow separation? What causes it? What is the effect of flow separation on the drag…

A: Flow separation It is a process in which the boundary layer of the fluid detaches itself from the…

Q: Show the boundary layer development along the plate and define the characteristics of boundary layer…

A: Given:

Q: - Use FoilSim to investigate how an aircraft wing produces lift and drag by changing the values of…

A: An airfoil produces lift by applying a downward constrain on the air because it flows past.…

Q: Define the planform area of a body subjected to external flow. When is it appropriate to use the…

A: Planform area: Plan area of an object is taken as the planform area. The plan is the view of the…

Q: Example 5 The total mass, wing area, cruising speed, and air resistance power of a small aircraft…

A: Givenm=1800kgA=42m2V=280 km/hr =280×1033600=77.78m/sPa=190kWH=4000m

Q: Consider a refrigeration truck traveling at 70 mi/h at a location where the air is at 1 atm and…

A: Given that,

Q: How does the Reynolds number effect the lift and drag coefficient for a symmetrical airfoil

A:

Q: Use FoilSim to investigate how an aircraft wing produces lift and drag by changing the values of…

A: Given Foilsim To find Lift and drag conditions

Q: What is the main cause of the increase in drag when you increased the angle of attack?

A: As a wing moves through the air , the airfoil is inclined to the flight direction at an angle. As…

Q: A 3-m-high, 6-m-wide rectangular advertisement panel is attached to a 6-m-wide, 0.15-m-high…

A: From the given data,

Q: 3) An advertising sign mounted on the roof of a car is 33 inches tall, 15 inches wide and 54 inches…

A:

Q: Define the frontal area of a body subjected to external flow. When is it appropriate to use the…

A: Frontal area is the projected area of the body to a plane which is normal to the flow of the fluid.…

Q: A 2-m-high, 4-m-wide rectangular advertisement panel is attached to a 4-m-wide, 0.15-m-high…

A: Given data as per question wind speed = 150 km/h = 150/3.6 m/s width of  rectangular advertisement…

Q: What is induced drag on wings? Can the induced drag be minimized by (1) long and narrow wings or (2)…

A: Given question? What is induced drag on wing?  Can it be minimized by wing shape?

Q: To reduce the drag coefficient and thus to improve the fuel efficiency, the frontal area of a car is…

A: Given data,