{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

class 15

# class 15 - External Flow Flow over Cylinders Chapter 7...

This preview shows pages 1–5. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: External Flow: Flow over Cylinders Chapter 7 Section 7.4 During a cold winter day, wind at 15 m/s is blowing parallel to a 4-m-high and 10-m-long wall of a house. If the air outside is at 5C and the surface temperature of the wall is 12C, determine the rate of heat loss from that wall by convection. Assume the following Air properties: Kinematic viscosity = 1.5 x10-5 m 2 /s Thermal conductivity = 0.02 W/m-K Pr=1 Which form of the Nu correlation should be used: a) b) c) The Cylinder in Cross Flow Conditions depend on special features of boundary layer development, including onset at a stagnation point and separation , as well as transition to turbulence. – Stagnation point : Location of zero velocity and maximum pressure . – Followed by boundary layer development under a favorable pressure gradient and hence acceleration of the free stream flow – As the rear of the cylinder is approached, the pressure must begin to increase. Hence, there is a minimum in the pressure distribution,...
View Full Document

{[ snackBarMessage ]}

### Page1 / 23

class 15 - External Flow Flow over Cylinders Chapter 7...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online