The passenger compartment of a minivan traveling at 50 mi/h in ambient air at 1 atm and 80°F is modeled as a 4.5-ft-high, 6-ft-wide, and 11-ft-long rectangular box. The airflow over the exterior surfaces is assumed to be turbulent because of the intense vibrations involved. Determine the drag force acting on the top and the two side surfaces of the van and the power required to overcome it.

Q: Air is flowing past a symmetrical airfoil at an angle of attack of 5°. Is the (a) lift and (b) drag…

A: If an object is placed in a fluid flow, it experiences forces. Say, a body  or say an airfoil is…

Q: Consider laminar boundary layer flow over a flat plate as shown in the figure (top view). Ignoring…

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Q: g and buoyancy f

A: introduction: here we have to explain density impact on bouncy and drag force

Q: In the laminar flow of air (Pr = 0.7) over a heated plate. if ö and S denote, respectively, the…

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Q: 5 Air at 90°C and 1 atm flows over a flat plate at a velocity of 30 m/s. How thick is the boundary…

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Q: The power delivered to the wheels of a car is used to overcome aerodynamic drag. Compare the amount…

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Q: Consider a semi truck traveling at 55 mph on the freeway. The ambient air is at 1 atm and 80°F. The…

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Q: Determine the drag force exerted on the flat plate of 4 m long when air is flowing over it with a…

A: The answer is given below

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

Q: The resultant of the pressure and wall shear forces acting on a body is measured to be 470 N, making…

A: Given data as per question Force =470 N Angle = 330

Q: The summit of a mountain is 3290 m higher than a point in the foothills. Assume that the atmospheric…

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Q: Air at 250C and 1.0 bar is flowing over a flat plate with a velocity of 8 m/s. Determine: (i) The…

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Q: Is there any conflict between the boundary condition respect to the airfoil surface and the induced…

A: The boundary layer affect the lift line.

Q: The sphere of diameter of 5.0 cm is moving in still water at a velocity of 2.0 m/s. The drag…

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Q: ent of a vehicle increases when its windows are rolled down or its sunroof is opened. A sports car…

A: The frontal area of the car, A = 18 ft2.Drag coefficient when the sunroof is closed, CD1 = 0.32.Drag…

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: 55°C methanol flows over a 4m long 2m width flat plate with temperature of 25°C. The velocity of…

A: Reynold's number Reynolds number is a dimensionless quantity that is used to determine the type of…

Q: A flat plate ( 1.5 m ) long and ( 1.5 m ) wide is towed in water ( ρ = 1000 kg/m3 and ν=1.31 * 10 -6…

A: Given data:

Q: How does a winglet on the wing tip reduce induced drag? Which drag is higher if an aircraft…

A: Introduction Drag is caused by the interaction of the airplane's surface with the air molecules in…

Q: During flow over a given slender body such as a wing, the lift force, the upstream velocity, and the…

A: Answer : The lift force depends upon Density of fluid Upstream Velocity Size, shape and orientation…

Q: A person extends his uncovered arms into the windy air outside at 1 atm and 60°F and 25 mi/h in…

A: Given data: The properties of air at 1 atm and 60 degrees Fahrenheit is

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

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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: Air is flowing at a speed of 5 m/sec between two parallel flat plates. The air temperature is 20o C…

A: Write the given data with suitable variables. v=5 m/sT∞=20 °CP=1 atmT=90 °Cd=60 cm=0.6 m100 cm1 mb=1…

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: An aircraft flies with a lifting area of ​​40m2 and a weight of 60 kN. the lift coefficient is 0.24…

A: Given: Lifting area (A)=40m2 Weight (W)=60kN Lift coefficient (CL)=0.24 Total resistance or drag…

Q: Light oil at 75°F flows over a 22-ft-long flat plate with a free-stream velocity of 6 ft/s.…

A: Given data: Length of plate, L = 22 ft Stream velocity, V = 6 ft/s Temperature, T = 75°F

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