4.1 Use the Buckingham a method to develop an expression for the viscous torque T producedon a disc rotating in a liquid which depends upon the characteristic dimension D, the speed ofrotation N, fluid density p and absolute viscosity u. Take p, N and D as repeating variables4.2 In order to predict the torque T on a disc 0.5 m in diameter rotating in oil at 200 rev/min, amodel is made to a scale of 1/5. The model is to be rotated in water. Calculate the speed of themodel which produces dynamic similarity. Note that the specific gravity of the oil is 0.75, theabsolute viscosity of the oil is 0.2 Pa.s, the absolute viscosity of water is 0.001 Pa.s, and thedensity of water is 1000kg/m3.4.3 Calculate the ratio of the viscous torque produced on the disc rotating in oil to the onerotating in water The pressure drop across a short hollowed plug placed in a circular tube through which a liquidis flowing can be expressed as AP = 9 (p, V, D, d). Some experimental data were obtained withD = 0.1 m, p = 1000 kg/m² and V = 0.6 " as given in the following table:d (m)0.0250.0310.0460.019A (kPa)247.530.63.1 Use the Buckingham- theorem to develop the dimensionless parameters takingand d as repeating variables.3.2 Plot the results of these tests using the dimensionless parameters in order to presentthe relationship in the form Y = ax3. 3 Estimate the pressure drop AP in kPa if d = 0.09m.

4.1 The given system is - T = fD,N,μ,ρ The total variables is 5 (including T) . TTorque=ML2T-2, D=L,…

Answered: 4.1 Use the Buckingham a method to…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Q.1 The force in (newton) required to lift a thin wire ring of diameter 2cm from a water surface of given surface tension at 21 C is 2N/cm A 9Tt В C D
Q.1. A large tank contains air, gasoline (pc= 680 kg/m³), light oil (p= 800 kg/m³) and water. The pressure p of the air is 150 kPa gauge. If we neglect friction, what is the mass flow rate of oil from a 20- mm-diameter jet? 1₁-2m Air Gasoline 8G Water- 90 Oil.. d. 20 mm #i 2-3m
PA Prandtl tube (Pitot-static tube with C = 1) is %3D used to measure the velocity of water. The differential manometer reading is 10 mm of liquid column with a relative density of 10. Assuming g 9.8 m/s?, the velocity of water (in m/s) is
86 N/cm"] 11. A single column vertical manometer (ie., micrometer) is connected to a pipe containing oil of sp. gr. 0.9. The area of the reservoir is 80 times the area of the manometer tube. The reservoir contains mercury of sp. gr. 13.6. The level of mercury in the reservoir is at a height of 30 cm below the centre of the pipe and difference of mercury levels in the reservoir and right linb is 50 cm. Find the pressure in the pipe. (Ans. 6.474 N/em) 12. A pipe contains an oil of sp. gr. 0.8. A differential manometer connected at the two points A and B of the pipe shows a difference in mercury level as 20 cm. Find the difference of pressure at the two paints. [Ans. 25113.6 N/m³) 13. A U-tube differential manometer connects two pressure pipes A and B. Pipe A contains carbon tetrachlo- ride having a specific gravity 1.594 under a pressure of 11.772 N/cm and pipe B contains oil of sp. gr. 0.8 under a pressure of 11.772 N/cm. The pipe A lies 2.5 m above pipe B. Find the difference of…
... P1 = 50 KPa P2 = 10 KPa 4m OIL 1.6m OIL In the figure, an orifice is locates in the partition wall so that it discharges oil (SG = 0.8) from left to right side of the room. The orifice %3D has a diameter of 100mm and is under the surface of oil, 4m from the surface on the left and 1.6m from the surface on the right. The surface at the left is under 50KPA of pressure and the surface at the right side is under 1OKPA of pressure. Determine the actual discharge in the orifice if C = 0.92 112.03 L/s B 87.63 L/s 95.25 L/s 103.07 L/s No Answer among the choices
The pressure (p2) of water in the pipe is equal to: (Assume aj = az = 1) Elevation = 100 m P2 = -9.81(80 ++ hịoss) kPa а. 2g b. P2 = 9810(80 + + hjoss) kPa %3D 2 Elevation = 20 m P2 = 9.81(-80 + hjoss) kPa 2g C. %3D d. P2 = 9.81(80 – 2g – hjoss) kPa - L= 2000 m
pls ans asap Water flows at 0.07 cubic meter per second through a pipe. A horizontal venturi meter with throat diameter of 150-mm was used to measure the velocity inside the pipe. Based on manometer reading, the differential gauge is deflected 1.2 meter. If the specific gravity of the manometer fluid is 1.60, the diameter of the pipe, in millimeter (mm), that was used is
%VY l. lin. 3. N Sheet 1.pdf → Sheet 1 Page 1 of 2 Q1/ An orifice meter is to be calibrated for the measurement of the flow rate of a stream of liquid acetone. The differential manometer fluid has a specific gravity of 1.10. The calibration is accomplished by connecting the orifice meter in series with a rotameter that has previously been calibrated for acetone, adjusting a valve to set the flow rate, and recording the flow rate (determined from the rotameter reading and the rotameter calibration curve) and the differential manometer reading, h. The procedure is repeated for several valve settings to generate an orifice meter calibration curve of flow rate versus h. The following data are taken. VALVEX Flow Rate D (ml/s) Manometer Reading h(mm) 62 10 15 87 107 20 123 25 30 138 151 1- For each of the given readings, calculate the pressure drop across the orifice, AP (mm Hg). 2- The flowrate through an orifice should be related to the pressure drop across the orifice by the formula. V =…
23 ft^3 of air was drawn from a ventilation duct and measured by means of a dry gas meter. the meter's temperature averaged 60 F and the meter gage pressure was -1.9" H2O. Barometric pressure during the sampling was 752 mm Hg. Calculate the volume in standard cubic feet and in standard cubic meter (25C, atm)
1. In the benzene plant, the pressure drop at some point of a pipeline in which benzene is passing through is measured with a U-tube manometer (Rm,1) as 10 cm (1st situation). The manometer fluid is carbon tetrachloride (CC14). Then, in order to avoid CC14 poisoning, it is decided to add a layer of water to both arms of manometer (2nd situation). So, 4 cm of water is added to the left arm and 8 cm of water is added to right arm. In this new situation, what will be the height difference of manometer fluid (CC14) between the arms of the manometer (Rm,2)? Data: pbenzene=876 kg/m³, pwater=997 kg/m², pccCI4=1587 kg/m³ Benzene Flow Benzene Flow "wright=8cm Rm,1 Rm2 =4cm[ 1 st Situation: Before adding water to manometer's arms 2 nd Situation: After adding water to manometer's arms
5 (1) Complete the following table for water. P, kPa T, °C m³/kg (a) (b) (c) 1200 500 160 (d) 16.3 550 (e) 40 1017.1 1 - 108-20 + 9₁227 ( 187.96 0.16326 BX30 0.47443 83⁰ 5000 Fan √3 - VF Vg 6(2) Complete the following table for R-134a. T, °C P, kPa u, kJ/kg h, kJ/kg M₁ = 0.16326 Quality, N/A if not applicable (1) 640.091 4/0 02 / 38 -1 1713-1 ^/o la X=.1143 V, m V 6 SO +3 Efficion 140 یرها ان h, kJ/kg 2783.8 h = hf + x (hg-hf) h = Mt w = 10 3/ 1966-1 145.28 Satyated Vapor Saturated Liquid - Vapar Mixture 198 3 (3) 50 W shaft work from a fan is used to accelerate the speed of air (at a mass flow rate of 0.5 kg/s) from zero to 12 m/s. What is the mechanical efficiency of the fan? 12% Phase description Satuated Tanza. -1 Vapor Satunt of v = f Zuper heeld om -I Compressed Liquid 2783.8 = 178.33+ &(1985-47) X = 1 Quality, N/A if not applicable MA-1 X=0 X = 0.227 140 = 107-39+x (251-107.34) 20 32.61 = 143,67 X = 0.227 Phase V=12m 12m - Superhealed Japur description Saturated liquid Q=05kg E…
In the benzene plant, the pressure drop at some point of a pipeline in which benzene is passing through is measured with a U-tube manometer (Rm,1) as 10 cm (1stsituation). The manometer fluid is carbon tetrachloride(CCl4). Then, in order to avoid CCl4 poisoning, it is decided to add a layer of water to both arms of manometer (2nd situation). So, 4 cm of water is added to the left arm and 8 cm of water is added to right arm. In this newsituation, what will be the height difference of manometer fluid (CCl4) between the arms of the manometer (Rm,2)?Data: ρbenzene=876 kg/m3, ρwater=997 kg/m3, ρCCl4=1587 kg/m3

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS

4.1 Use the Buckingham a method to develop an expression for the viscous torque T produced on a disc rotating in a liquid which depends upon the characteristic dimension D, the speed of rotation N, fluid density p and absolute viscosity µ. Take p, N and D as repeating variables