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Material Type: Quiz; Class: Heat & Mass Transfer; Subject: Engineering Science; University: New Mexico Institute of Mining and Technology; Term: Spring 2000;
Typology: Quizzes
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Lecture : Assignments and Topics Quiz #2: Review Sept 28th Read: Skim Chapter 6 Read Chapters 7 & 8 Hmwk: See Website Today’s Topics:
Overall Heat Transfer Coefficient: U Overall Heat Transfer Coefficient: U Lecture: Homework 1-
It all comes from data ---- Empirical Models: The ‘roots’ of the Moody Chart (1933) Stanton Diagram Colebrook - White Formula (1939) It all comes from data ---- Empirical Models: The Churchill Correlation (1977)
Fluid Mechanics - Flow Over a Sphere/Cylinder Assessment of drag forces caused by shear stress and pressure gradient in the boundary layer. Convective Heat Transfer - Fluid Mechanics Flow Over Objects (Chapter 7) Convective Heat Transfer - Fluid Mechanics Dimensionless vs. Dimensionless a universal chart describing shear/pressure vs. flow condition
Flow over Cylinder: Nusselt Number Correlation: Flow over Cylinder: Nusselt Number Correlation: What about v = 0? Region of possible analytical solution
Homework 1- 15 mph h = 25 (W/m C) Measuring Convective Heat Transfer Coefficients
Nu/Pr 1/ Homework - Reynold’s Analogy (6-53) homework: 7-
