P7.26 Consider laminar flow past the square-plate arrangements in the figure below.Compared to the drag of a single plate (1), how much larger is the drag of four platestogether as in configurations (a) and (b)? Explain your results.1324123

In order to solve this problem, you must first understand the concept regarding the drag in laminar…

Answered: P7.26 Consider laminar flow past the…

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.49P

See similar textbooks

Similar questions

Air at 1000C flows at an inlet velocity of 2 m/s between two parallel flat plates spaced 1 cm apart. Estimate the distance from the entrance to the point where the boundary layers meet.
Air at 20C flows at 1 m/s between two parallel flat plates spaced 5 cm apart. Estimate the distance from the entrance to the point at which the hydrodynamic boundary layers meet.
Problem 2: Consider laminar boundary layer flow past the square -plate arrangements in the figure below. Compared to the friction drag on a single square, how much larger is the drag of the four plates together as in configurations (a) and (b)? ↑ 1 (a) 1 2 3 4 1 2 (b) 3 4
A light aircraft flies at 30 m/s in the air at 20°C and 1 atm.Its wing is a NACA 0009 airfoil, with a chord lengthof 150 cm and a very wide span (neglect aspect ratioeffects). Estimate the drag of this wing, per unit spanlength, (a) by flat plate theory and (b) using the datafrom Fig for α = 0°.
Based strictly on your understanding of the flat-plate theoryplus adverse and favorable pressure gradients, explainthe direction (left or right) for which airflow past theslender airfoil shape in Fig will have lower total(friction 1 pressure) drag.
From Table the drag coefficient of a wide plate normalto a stream is approximately 2.0. Let the stream conditionsbe U∞ and p∞. If the average pressure on the front of theplate is approximately equal to the free-stream stagnationpressure, what is the average pressure on the rear?
Air at 20°C and 1 atm fl ows at 50 ft/s past a thin fl at platewhose area (bL) is 24 ft2. If the total friction drag is 0.3 lbf,what are the length and width of the plate?
A beach ball 20 cm in diameter traveling at a speed of 50 m/s in still air at 30°C is found to have a drag of 8 N. (a) Find the velocity at which the drag of a 60 cm sphere immersed in water at 15°C can be found from the above data. (b) What is the drag of the larger sphere at this velocity?
f6
i need the answer quickly
A wing of 2 percent camber, 5-in chord, and 30-in span istested at a certain angle of attack in a wind tunnel with sealevelstandard air at 200 ft/s and is found to have lift of 30 lbfand drag of 1.5 lbf. Estimate from wing theory (a) the angle ofattack, (b) the minimum drag of the wing and the angle of attackat which it occurs, and (c) the maximum lift-to-drag ratio.
(B) Air at 27 C flows over a flat plate with a velocity of 3 m/s. Calculate the boundary layer thickness (8) at a distance 25 cm from the leading edge of the plate. The physical properties of air are: p=1.17 kg/m² and 1.85x10 m/s. 8 4.64 X Re 1/2

SEE MORE QUESTIONS

Recommended textbooks for you

Principles of Heat Transfer (Activate Learning wi…

Mechanical Engineering

ISBN:

9781305387102

Author:

Kreith, Frank; Manglik, Raj M.

Publisher:

Cengage Learning