HEAT TRANSFER CHAPTER 7 External flow #1 Heat Transfer Su Yongkang School of Mechanical Engineering
Heat Transfer Su Yongkang School of Mechanical Engineering # 1 HEAT TRANSFER CHAPTER 7 External flow
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Heat Transfer Su Yongkang School of Mechanical Engineering # 2 Looking for a job?
External Flow:Other Shapes Topic of the Day oven #3 Heat Transfer Su Yongkang School of Mechanical Engineering
Heat Transfer Su Yongkang School of Mechanical Engineering # 3 External Flow: Other Shapes Topic of the Day oven
External Flow:Other Shapes Where we've been...... Empirical correlations and analytical solutions Nux= 0.332 Re2 Pr Where we're going: Applications to other shapes(cylinders and spheres) Brief discussion on multiple objects(tube bundles)and jet impingement. ·Internal flow next Textbook Sections 7.4-7.8 #4 Heat Transfer Su Yongkang School of Mechanical Engineering
Heat Transfer Su Yongkang School of Mechanical Engineering # 4 External Flow: Other Shapes Where we’ve been …… • Empirical correlations and analytical solutions Where we’re going: • Applications to other shapes (cylinders and spheres) • Brief discussion on multiple objects (tube bundles) and jet impingement. • Internal flow next ……….. Textbook Sections §7.4-7.8 3 1 2 1 0.332 Re x Pr k h x Nu x x
Historical Example Cooling of lead shot Molten lead #5 Heat Transfer Su Yongkang School of Mechanical Engineering
Heat Transfer Su Yongkang School of Mechanical Engineering # 5 Historical Example • Cooling of lead shot Molten lead