5-1) Which one is the right fin design, (1) or (2)? Answer (1) or (2). ZZZZZ Flow in outer channel Flow in inner channel ZZZZ Flow in outer channel Cross-sectional View Side View Option (1): Fluid in outer channel-Air, Fluid in inside channel - Water, Option (2): Fluid in outer channel - Water, Fluid in inside channel - Air The velocity conditions and hydraulic equivalent diameters are the same between inner and outer channels. The pressure and temperature

5-1) Which one is the right fin design, (1) or (2)? Answer (1) or (2). ZZZZZ Flow in outer channel Flow in inner channel ZZZZ Flow in outer channel Cross-sectional View Side View Option (1): Fluid in outer channel-Air, Fluid in inside channel - Water, Option (2): Fluid in outer channel - Water, Fluid in inside channel - Air The velocity conditions and hydraulic equivalent diameters are the same between inner and outer channels. The pressure and temperature

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

A vertical channel of diameter 5 cm and length 10 m is conducting water in upward manner( water viscosity= 1x10 -6 m2/s , water density =1000 kg/m3 ). For the presence of laminar flow regime determine the maximum amount of flow rate approximately ( Use pi number as 3,14 )ANSWER: 0,09 kg/s
A horizontal channel of diameter 5 cm and length 10 m is conducting water ( viscosity= 1x10^-6 m2/s ,density =1000 kg/m3 ) for the presence of laminar flow regime at maximum amount of flow rate determine approximate magnitude of pressure gradient inducing flow ( Use pi number as 3,14 )ANSWER: 0,59 Pa/m
9-38 A two dimensional diverging duct is being designed to diffuse the high speed air existing a wind tunnel. The x-axis is the centerline of the duct (it is symmetric about the x-axis), and top and bottom walls are to be curved in such that the axial wind speed u decreases approximately linearly from u1 = 300 m/s at section1 to u2 = 100 m/s at section2 (Fig. P9-38). Meanwhile, the air density ρ is to increase approximately linearly from ρ1= 0.85 kg/m3 at section 1 to ρ2= 1.2 kg/m3 at section 2. The diverging duct is 2.0m long and is 1.60m high at section1 ( only the upper half is sketched in Fig. p9-38; the half height at section 1 is 0.80m) a. Predict the y-component of velocity, v(x,y), in the duct b. Plot the approximate shape of the duct, ignoring friction of the walls c. What should be the half height of the duct at section 2?
What are Reynolds numbers and what do they indicate about the physical and spatial charactericstics of aquatic systems? a) In hydrological terms what are recharge and residence time? b) What happens if pumping rate from aquifers exceeds recharge rate?
A cylindrical shaft of radius 5 cm is rotating at a speed of 50 rad/s in a cylindrical bearing . Shaft and bearing are concentric . The lubricant of viscosity 0,6 Pa s and SG= 0,9 completely fills the clearance between shaft and bearing surface. Take clearance as 0,5 cm and length of shaft as 10 cm . The lubricant flow is laminar steady and uniform .Frictional power loss due to shaft rotation is ? ANSWER: 23,55 W
A centrifugal pump is used to pump the water at its temperature in a reservoir with the free water surface located 2 m above the center of the pump inlet to the atmosphere. Piping system in 5ng from tank to pump; It consists of 3 galvanized iron pipes with an internal diameter of 20 cm and an average internal roughness of 0.15 mm. Local ancillary elements above the piping system are years; Sharp edged inlet (Kg-0,85), flanged smooth 3 pieces 90 ° bend -0,3 each thousand and one flanged full open globe valve (KK-8). Find the net positive charge on the usable suction since the minimum volumetric flow is 30 L / s that can be mpaed without cavitation. Evaporation pressure for water at 25 ° temperature: 3.169 kPa) (Standard atmospheric pressure: 101.3 kPa) -997 kg / m3 (-1.05) (dynamic viscosity of water at 25 ° temperature: 8.91.10-kg / ms)
answer in thebalankIn flow of fluids through channel wherein the velocity changes along the lenght of a channel from point to point on the account of changing its depth, width and direction of flow is ______________
Make an analysis of the shape h ( x ) of the water–air interfacenear a plane wall, as in Fig. , assuming that theslope is small, R - 1 ≈ d 2 η / dx 2 . Also assume that the pressuredifference across the interface is balanced by thespecifi c weight and the interface height, ∆p ≈ ρ g η . Theboundary conditions are a wetting contact angle θ at x = 0and a horizontal surface η = 0 as x--->∞. What is themaximum height h at the wall?
A tank supplies water through a horizontal channel of diameter 15 cm . Determine the maximummagnitude of boundary layer thickness developing over the channel walls in the entrance region ofchannel from the tank .ANSWER: 7,5 cm
2. A cylindrical shaft of radius 4 cm is rotating at a speed of 30 rad/s in a cylindrical bearing . Shaft and bearing are concentric . The lubricant of viscosity 0,4 Pa s and SG= 0,85 completely fills the clearance between shaft and bearing surface. Take clearance as 0,5 cm and length of shaft as 10 cm . The lubricant flow is laminar steady and uniform .Frictional force on shaft surface is ?Lütfen birini seçin: a. 4,47 N b. 2,41 N c. 5,53 N d. 9,42 N e. 1,23 N
This problem is useful for the preliminary design of a hydroturbine. From the material learned in this chapter, it is fairly simple to estimate how much power a hydroturbine can generate, given only the flow rate of water and the elevation difference upstream and downstream of the dam. A dam has a gross head of 15.5 m and a flow rate of 0.22 m3 /s. Approximating the overall efficiency of the turbine/generator to be 75%, estimate the electrical power (in kW) that couldbe produced.
1.).A cylindrical shaft of radius 5 cm is rotating at a speed of 50 rad/s in a cylindrical bearing . Shaft and bearing are concentric . The lubricant of viscosity 0,6 Pa s and SG= 0,9 completely fills the clearance between shaft and bearing surface. Take clearance as 0,5 cm and length of shaft as 10 cm . The lubricant flow is laminar steady and uniform . Frictional force on shaft surface is ? ANSWER:9,42 N