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Ch. 1 Fluid Properties ( 제 1 장 유체의 성질 )

Jan 29, 2016

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[Homework Assignment]. Ch. 1 Fluid Properties ( 제 1 장 유체의 성질 ). 201110530 박소라. 1. Search any information or topics about Fluid Mechanics in Internet such as application, theory, or any kind of programs (computer models). Submit reports, and eStream results. 유체역학. - PowerPoint PPT Presentation
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Ch. 1 Fluid Properties ( 1 )

Ch. 1 Fluid Properties ( 1 )

201110530 [Homework Assignment]1. Search any information or topics about Fluid Mechanics in Internet such as application, theory, or any kind of programs (computer models). Submit reports, and eStream results. . , . -, , , , . . , .

(Hydraulics) : . , . (Hydrodynamics) : . , . .

(viscosity) . (Viscous Fluid) : (Real Fluid) , . : (Idial Fluid),(Perfect Fluid) , , .

2. Submit the explanation of the class contents of this chapter similar to the works of former students.1) (Newton's law of viscosity) . [] y , v x , y s . .

2) Unit (SI and English Units : force, Atmospheric Pressure)[ ]- 1k 1m/s2 1N = 1 kg 1m/s2 = 1 kgm/s2 MKS kgf, kgW, kg tf, tW, t 1kgf = 1kg 9.8m/s2 = 9.8kgm/s2 = 9.8N

[ ] - 76cm 1 = 1atm = 760mmHg = 760Torr(pascal) : Pa (/)1 Pa = 1 N/m2 (atm) : atm(/)1 atm= 101 325 Pa(Torr) : Torr()1 Torr= 1 mmHg = 133.322 Pa

3) Law of Perfect Gas ( ) . . '' . . . , . (random). , . , . , . PV = nRT P , V , n , R 8.3145J/molK, T (T)(P)(V) . , - . .

4) Vapour Pressure () . . , , . . , () . . , . . . e' P , r .

, .

5) Surface Tension and Capillary Phenomena : Search the information in the internet and submit the results. ( )Surface Tension () , . , . . . . .

A 0. B, . . . , , , .

, . . , .

. . , 20 , , , , 0.0223, 0.07275, 0.025, 0.063, 0.465 N/m( ). , . , 10 0.07422, 20 0.07275, 30 0.07118, 40 0.06955 N/m . N/m . N/m = Nm/m2 = J/m2 . , .

Capillary Phenomena() . , . , . , . , . .

. T , , r , , g . . , . .

6) Explain the variation of viscosity with temperature and the unit of viscosity ( ) . Newton . . . . . . . . .

. , . (fluid statics) . , . . , .

Newton . . , , F, L, T , .Newton 2 . SI . . USC . poise(P) cgs. 1 poise . SI poise 10 . , 10 poise. (kinematic viscosity) .

7) Solve the example problem of 1.2 including coding 1.5 C (sleeve) . , . BASIC . D=0.8 in, L= 8.0 in, =0.001 in, R=2ft, = 0.0001 , 1200 rpm.

1.5

1 1 . , . . 2n , 1/2 . .

. .

1.6 BASIC . .