Width from plate for values of the critical reynolds number

Assignment Help Mechanical Engineering
Reference no: EM13719030

Consider atmospheric air at 25 degrees Celsius and a velocity at 25 m/s flowing over both sides of a 1  eter long flat plate that is maintained at 125 degrees Celsius. Determine the rate of heat transfer per unit width from the plate for values of the critical Reynolds number corresponding to 105, 5 x 105, and 106?.

Reference no: EM13719030

Questions Cloud

Thin films of amorphous si are used for solar cells : If silicon is cooled quickly, it will form a glass instead of crystallizing. One way to do this is to deposit Si atoms onto a cold substrate, with H added to remove defects; these thin films of amorphous Si (with H) are used for solar cells.
Calculate the power developed by the turbin : An ideal Rankine cycle uses water as its working fluid. The mass flow rate of water through the cycle is 150 kg/s. saturated vapour enters the turbine at 15 MPa and saturated liquid enters the pump at 10 kPa. Cooling water passes through the condense..
Quantitatively amount of work needed in these two cases : You can transform a long bar of stainless steel from an initial 25 mm in diameter to 23 mm diameter by either machining or by drawing. Compare quantitatively the amount of work needed in these two cases.
Explain about transaction and transform mapping : explain about transaction and transform mapping
Width from plate for values of the critical reynolds number : Consider atmospheric air at 25 degrees Celsius and a velocity at 25 m/s flowing over both sides of a 1  eter long flat plate that is maintained at 125 degrees Celsius. Determine the rate of heat transfer per unit width from the plate for values of th..
Explain how you define the times of sunrise and sunset : Explain how you define the nodes xk that represent the dates above - Define a global interpolating polynomial Pr that passes through all data points given for the time of sunrise.
Diameter impeller of a radial-flow water pump rotates : A 400-mm-diameter impeller of a radial-flow water pump rotates at 120rad/s and has a discharge of 0.5m3/s. Determine the discharge for a similar pump that has an impeller diameter of 100mm and operates at 90rad/s.
Engine assuming gallon gasoline produces : As a 75 slug car travels along a horizontal, 3200 ft section of road, it changes speed from 5 mph to 60 mph. During this acceleration, how efficient is the car's engine assuming 1 gallon gasoline produces 120 MJ of energy when completely combusted in..
Temperature of the refrigerant exiting the compressor : Refrigerant R134a is compressed under steady conditions from a saturated vapour at 100 kPa to 500 kPa. The compressor’s isentropic efficiency is 85%. Heat losses from the compressor can be ignored, as can kinetic energy and potential energy effects.

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Liquid water at 180oc 2000 kpa is throttled into a flash

liquid water at 180oc 2000 kpa is throttled into a flash evaporator chamber having a pressure of 500 kpa. neglect any

  A 49 kg person drinks 520 g of milk which has a caloric

question a 49 kg person drinks 520. g of milk which has a caloric value of approximately 3.0 kjg. if only 19 of the

  Determine the power input of the pump

Water enters the pump of a steam power plant as saturated liquit at 20kpa at a rate of 45kg/s and exits at 6mpa. Neglecting KE and PE changes and assuming the process is reversible, determine the power input of the pump

  The welding department has idle capacity of 600 minutes per

a single unit of product a requires 2.4 minutes of punch press time and 5.0 minutes of assembly time. the profit for

  Oxygen at 100 kpa 27degc is compressed to 1 mpa in an

oxygen at 100 kpa 27degc is compressed to 1 mpa in an adiabatic compressor whose isentropic efficiency is 0.80.

  After drawing a neat and clear schematic of the geometry

a 5 ft3 tank containing steam at 14.7 psia 1 quality is fitted with a relief valve. heat is transferred to the tank

  Condenser pressure is 01 bar assuming that the isentropic

a steam power plant utilizes the rankine cycle. steam enters the turbine at 50 bar and 500oc respectively. condenser

  Determine total mass of water in the piston cylinder device

a freely moving piston cylinder device containing steam at 270 degrees celsius and 1000 kpa is taken outside ona cold

  Approximate a boeing 777 aircraft as a system with a fixed

approximate a boeing 777 aircraft as a system with a fixed mass of 200000 kg. the plane initially cruises at 270 ms at

  Frm a normal distribution with mean 07515 cm and standard

assuming that the diameters of 1000 brass plugs taken consecutively from a machine form a normal distribution with

  What is the acceleration due to gravity on saturn

A box that weighs 50 lbf on earth is moved to Saturn where its new weight is 105 lbf. What is the acceleration due to gravity on Saturn? The gravitational acceleration on earth is 32.2 ft/s^2. What is the new weight (lbf) of the box if it is moved to..

  What is the velocity of the fluid in the small section

Fluid is flowing in the pipe has two areas. The velocity of the fluid flowing in the larger area is 4 ft/s. The radius of the larger area is 4 inches. The radius of the smaller section is 2 inches. What is the velocity of the fluid in the small secti..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd