8/10/2019 MOF INT-II

http://slidepdf.com/reader/full/mof-int-ii 1/2

 ECHANICS OF FLUIDS

Time: 45mins Max marks: 25

Date: 27.08.12 PART A - (5 2= 10 marks) Dept: !"!#

Ans$er A## %&esti'ns:

1. Explain Rayleigh’s method2. Give the dimensions of the following physical quantities.

a) Pessue !) "uface tension

  c) #ynamic viscosity d) $inematic viscosity%. &ist the advantages of dimensional analysis.

'. #efine (oude num!e . *hat is meant !y undistoted model+

PART

 Ans$er A## %&esti'ns:

1. ,i) -he fictional toque - of a disc of diamete # otating at a speed

in a fluid of viscosity μ and density ρ in a turbulent flow isgiven by

 T=D5N2 ρ Φ [μ/ ρND2]Prove tis by te !etod of di!ensions",1/)

  ,ii) Explain the diffeent types of similaities exist !etween a pototypeand its model. ,)

  ECHANICS OF FLUIDS

Time: 45mins Max marks: 25

Date: 27.08.12 PART A - (5 2= 10 marks) Dept: !"!#

Ans$er A## %&esti'ns:

1. Explain Rayleigh’s method

2. Give the dimensions of the following physical quantities.a) Pessue !) "uface tension

  c) #ynamic viscosity d) $inematic viscosity%. &ist the advantages of dimensional analysis.

'. #efine (oude num!e 

. *hat is meant !y undistoted model+PART

 Ans$er A## %&esti'ns:

1. ,i) -he fictional toque - of a disc of diamete # otating at a speed

in a fluid of viscosity μ and density ρ in a turbulent flow is

given by  T=D5N2 ρ Φ [μ/ ρND2]

Prove tis by te !etod of di!ensions",1/)

  ,ii) Explain the diffeent types of similaities exist !etween a pototypeand its model. ,)

  ECHANICS OF FLUIDS

Time: 45mins Max marks: 25

Date: 27.08.12 PART A - (5 2= 10 marks) Dept: !"!#

Ans$er A## %&esti'ns:

1. Explain Rayleigh’s method2. Give the dimensions of the following physical quantities.

a) Pessue !) "uface tension  c) #ynamic viscosity d) $inematic viscosity

%. &ist the advantages of dimensional analysis.

'. #efine (oude num!e . *hat is meant !y undistoted model+

PART

 Ans$er A## %&esti'ns:

1. ,i) -he fictional toque - of a disc of diamete # otating at a speed in a fluid of viscosity μ and density ρ in a turbulent flow isgiven by

 T=D5N2 ρ Φ [μ/ ρND2]Prove tis by te !etod of di!ensions",1/)

  ,ii) Explain the diffeent types of similaities exist !etween a pototypeand its model. ,)

  ECHANICS OF FLUIDS

Time: 45mins Max marks: 25

Date: 27.08.12 PART A - (5 2= 10 marks) Dept: !"!#

Ans$er A## %&esti'ns:

1. Explain Rayleigh’s method

2. Give the dimensions of the following physical quantities.a) Pessue !) "uface tension

  c) #ynamic viscosity d) $inematic viscosity%. &ist the advantages of dimensional analysis.

'. #efine (oude num!e 

. *hat is meant !y undistoted model+PART

 Ans$er A## %&esti'ns:

8/10/2019 MOF INT-II

http://slidepdf.com/reader/full/mof-int-ii 2/2

1. ,i) -he fictional toque - of a disc of diamete # otating at a speed

in a fluid of viscosity μ and density ρ in a turbulent flow isgiven by

 T=D5N2 ρ Φ [μ/ ρND2]Prove tis by te !etod of di!ensions",1/)

  ,ii) Explain the diffeent types of similaities exist !etween a pototype

and its model. ,)