Q2) Fill in the blanks with appropriate word(s), for EXKEl of the following;K Specific weight is defined asAccording to the variation of density with pressure, Nuids may be classifiedinto- Nuids and- Nuids.3. The approximate number of experiments to evaluate the influence of 3 parametersseparately isassuming that 5 experiments are needed for each variable.¿When viscous resistance is important,-. criteria for similarity is used.S. The center of pressure is defined as -A Hydrostatic forces in a static fluid is the result of theexerted onsubmerged surfaces.Streamline is defined asContinuity equation represents the d0, conservation of 53-52.jpg 221%QQ24Edit & CreateShWrite down the equation of each of the dimensionless numbers (Cp, Re, Fr, W,M), and explain the physical meaning of each of them.Q2) Fill in the blanks with appropriate word(s), for FIVE of the following:Specific weight is defined asAccording to the variation of density with pressure, fluids may be classified into--------- fluids andfluids.The approximate number of experiments to evaluate the influence of 3 parametersseparately isassuming that 5 experiments are needed for each variable.When viscous resistance is important, ---------- criteria for similarity is used.The center of pressure is defined asHydrostatic forces in a static fluid is the result of the-------- exerted onsubmerged surfaces.Streamline is defined asContinuity equation represents the law of conservation ofJf815&7 YY$%50fó CD17 JA61019*8 Af10199F1138°C Clear112OActivate WindowsGo to Settings to activateENscroll+

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Q2) Fill in the blanks with appropriate word(s), for EXKEl of the following; K Specific weight is defined as According to the variation of density with pressure, Nuids may be classified into - Nuids and - Nuids. 3. The approximate number of experiments to evaluate the influence of 3 parameters separately is assuming that 5 experiments are needed for each variable. ¿When viscous resistance is important, -. criteria for similarity is used. S. The center of pressure is defined as - A Hydrostatic forces in a static fluid is the result of the exerted on submerged surfaces. Streamline is defined as Continuity equation represents the d 0, conservation of

Q2) Fill in the blanks with appropriate word(s), for EXKEl of the following; K Specific weight is defined as According to the variation of density with pressure, Nuids may be classified into - Nuids and - Nuids. 3. The approximate number of experiments to evaluate the influence of 3 parameters separately is assuming that 5 experiments are needed for each variable. ¿When viscous resistance is important, -. criteria for similarity is used. S. The center of pressure is defined as - A Hydrostatic forces in a static fluid is the result of the exerted on submerged surfaces. Streamline is defined as Continuity equation represents the d 0, conservation of

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.9P: When a sphere falls freely through a homogeneous fluid, it reaches a terminal velocity at which the...

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When a sphere falls freely through a homogeneous fluid, it reaches a terminal velocity at which the weight of the sphere is balanced by the buoyant force and the frictional resistance of the fluid. Make a dimensional analysis of this problem and indicate how experimental data for this problem could be correlated. Neglect compressibility effects and the influence of surface roughness.
The Ekman number, Ek, arises in geophysical fluiddynamics. It is a dimensionless parameter combining seawaterdensity ρ , a characteristic length L , seawaterviscosity μ , and the Coriolis frequency Ω sin φ , where Ωis the rotation rate of the earth and φ is the latitude angle.Determine the correct form of Ek if the viscosity is in thenumerator.
Taylor number (Ta) is used here to describe the ratio between the inertia effect andthe viscous effect. By applying Buckingham Pi’s Theorem, determine an equation forTa as a function of the radius of inner cylinder (r), cylinder tangential velocity (v),fluid dynamic viscosity (μ), gap distance (L) and fluid density (ρ).
The vapor pressure of water above water in a capillary is 99.9% of that above flat water surgace at 80°C. What is the diameter of the capillary? density of water= 0.9718g/cm^3, surface tension of water=62.6mN/m
A block of wood (SG = 0.6) fl oats in fl uid X in Fig.such that 75 percent of its volume is submerged in fl uid X .Estimate the vacuum pressure of the air in the tank.
The Reynolds number for a 1-ft-diameter sphere moving at2.3 mi/h through seawater (specifi c gravity 1.027, viscosity1.07 E-3 N ? s/m 2 ) is approximately( a ) 300, ( b ) 3000, ( c ) 30,000, ( d ) 300,000, ( e ) 3,000,000
A steel ball with the density of 6229 kg/m and the radius of 0,65 cm was dropped into the oil whose viscosity was to be measured as isseen in the figure. When the ball attains a constant velocity, the distance that the ball travelled was measured as 99 cm within the time interval of 4,7 sec. Before the experiment, the mass of the 100 ml-oil was measured as 2,1 gr. According to the data given above, find; a) the density of the oil (in kg/m ). (Please do not use any decimal digit.) b) the speed of the steel ball after the ball attains a constant velocity (in m/s). (Please use 4 decimal digits.) c) the dynamic viscosity of the oil (in Pa.s) (Please use 3 decimal digits.) d) the flow Reynolds number. (Please use 4 decimal digits.) Please solve this question step by step to reach correct answers. correct answers: a) 21 b) 0,2106 c) 2,715 d) 0,0212
Find the Prandtl number of the mercury at 300 K. If the properties of mercury at 300 K are, Density = 13529 kg/m³, Cp= 0.1393 kJ/kgK, dynamic viscosity = 0.1523 × 10-2 Ns/m² and thermal conductivity = 8.540 W/mK .
Sometimes manometer dimensions have a signifi canteffect. In Fig. containers ( a ) and ( b ) are cylindricaland conditions are such that p a = p b . Derive a formula forthe pressure difference p a - p b when the oil–water interfaceon the right rises a distance ∆ h< h , for ( a ) d << D and ( b ) d=0.15 D . What is the percentage change in the value of ∆ p ?
Please answer only when you are sure and give correct answer Thedensity of an oil at 23°C is 750kg / (m ^ 3) Find its relative density and kinematic viscosity if the dynamic viscosity is 5 * 10 ^ - 3 * kg / m * s .
Directions: Solve the following problems completely, and make a detailed solution. Any incompletesolution arriving at such answers will never be considered. A barrel contains a 15 cm layer of oil of density 5.88 kN/m3 floating on water that is 30 cm deep. What is the gauge pressure in mmHg at the oil-water interface?
A milkshake has fairly similar density to that of water (m s = 1200 kg/m3) but is far more viscous ( = 1kg/ms) (a) Say you try to drink a milkshake through a straw that is 30 cm long and 5 mm in diameter. Your lungs are capable of creating a vacuum pressure of 3000 Pa. (Vacuum pressure just means a pressure below that of the atmosphere, so plung = patm 3000 Pa.) You Önd that if you place the straw just at the surface of the liquid, you are unable to suck the milkshake through the straw, but if you push the straw deeper into the shake, you can. To what depth, d, would you need to push the straw in order to just start to sip the milkshake?(b) Suppose you push the straw to a depth of 10 cm and suck with a suction pressure of 3000 N/m2. What volume áow rate of milkshake can you produce through the straw