Concept explainers
Water usually is assumed to be incompressible when evaluating static pressure variations. Actually it is 100 times more compressible than steel. Assuming the bulk modulus of water is constant, compute the percentage change in density for water raised to a gage pressure of 100 atm. Plot the percentage change in water density as a function of p/patm up to a pressure of 50,000 psi, which is the approximate pressure used for high-speed cutting jets of water to cut concrete and other composite materials. Would constant density be a reasonable assumption for engineering calculations for cutting jets?
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Fox And Mcdonald's Introduction To Fluid Mechanics
Additional Engineering Textbook Solutions
Mechanics of Materials (10th Edition)
Starting Out With Visual Basic (8th Edition)
Modern Database Management
Starting Out with Python (4th Edition)
Degarmo's Materials And Processes In Manufacturing
Electric Circuits. (11th Edition)
- A piezometer was connected to a pipe to measure the pressure of water. The rise of water level in piezometer was 150 mm. Calculate the pressure of water. 150 mm Q A U-tube manometer is connected to a pipe for measuring the pressure of oil (Specific gravity 0.92) flowing in the pipeline. Mercury (Specific gravity 13.6) is used as manometer liquid and the difference of mercury level in the two limbs is 200 mm. The centre of pipe is 80 mm below the level of mercury in the right limb. Determine the pressure in the pipeline and the head. | 80 mm 160 mmarrow_forwardQ/ From the table of water properties at average temperature T, find the water properties: density p, viscosity µ. Then calculate: The cross section area of chamber A= T/4 d2 (cm2 ) The pressure difference along L AP=p g h (atom) Volumetric flow rate q=Q/t (cm3 /s) and finally calculated permeability (Darcy D) qul ΑΔΡ Repeat these reading three time and then find the average of permeability. The informations are : D = 9.9 cm L = 25 cm T= 22 °C V (cc) 600 t (sec) 187 H1 (cm) 108 3 H2 (cm) No 1 2 600 176 109 4 3 600 184 107 3arrow_forwardSolve itarrow_forward
- A vertical cylindrical continuous decanter is to separate 44 gal/min of a liquid petroleum oil from wash acid. The volume of wash acid is twice the volume of the liquid petroleum oil. The oil is the continuous phase and at the operating temperature has a viscosity of 1.1 mPa.s and a density of 54.6 lb/ft3. The density of the acid is 72 lb/ft3, Compute (a) the volume of the decanter, (b) the liquid levels of the light and heavy liquids in the vessel and (c) the height of the heavy liquid overflow leg where the heavier liquid is discharged in an open atmosphere with a pressure of 750 mmHg. Assume that the ends of the vessel are flat and that the vessel height is twice its diameter. Air space with a pressure of 780 mmHg on top of the lighter liquid is 1/4 the volume of the mixture.arrow_forwardEstimate the height to which distilled waterwill rise in a capillary glass tube of 10mm diameter at a height of 25mm. The surface tension is 0.074 N/m,determine also the true static height.arrow_forwardshow complete solutionarrow_forward
- A vertical cylindrical continuous decanter is to separate 44 gal/min of a liquid petroleum oil from wash acid. The volume of wash acid is twice the volume of the liquid petroleum oil. The oil is the continuous phase and at the operating temperature has a viscosity of 1.1 mPa.s and a density of 54.6 Ib/ft. The density of the acid is 72 Ib/ft. Compute (a) the volume of the decanter, (b) the liquid levels of the light and heavy liquids in the vessel and (c) the height of the heavy liquid overflow leg where the heavier liquid is discharged in an open atmosphere with a pressure of 750 mmHg. Assume that the ends of the vessel are flat and that the vessel height is twice its diameter. Air space with a pressure of 780 mmHg on top of the lighter liquid is 1/4 the volume of the mixture.arrow_forwardFor a vertical rectangular gate, one side has linseed oil (0.938) and the other has two fluids—castor oil (0.96) and water. Considering a unit-width of the gate, apply the PRESSURE PRISM CONCEPT (Illustrate and label the pressure diagram/prism) to calculate the magnitude and direction of the following when z = 7m. FIND: A. The hydrostatic force due to linseed oil F1. B. The hydrostatic force due to castor oil F2. C. The hydrostatic force due to water. D. The net hydrostatic force acting on the gate Fnetarrow_forwardWhen a clean glass tube with a diameter of 2 mm is immersed in water at 20 ° C, how many mm will the capillary rise occur in the glass tube? For water at 20 ° C, surface tension is given as 0.073 N / m, density 1000 kg / m3, contact angle 0 ° C and gravitational acceleration 10 m / s2.arrow_forward
- 7arrow_forwardA fluid having a density of 1400 kg/m³ stands in a tube of 6 mmθ at a height of 27 mm. what is the true static height? use surface tension equals to 0.1052N/m and contact angle is 15degrees.arrow_forwardEstimate the capillary height for oil in a glass capillary tube 1.7 mm in diameter. Use 0=0.514 N/m and 0=120°. Is it capillary rise or capillary depression?arrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning