Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

problem 1: Define the given term:

a) Laminar flow.
b) Turbulent flow.

problem 2: prepare brief notes on Newtonian fluids and Non Newtonian fluids.

problem 3: prepare brief notes on boundary layer concept.

problem 4: What are the different types of boundary layers? prepare brief notes on any two.

problem 5: Define the term Nusselt number.

problem 6: Define the term Prandtl number.

problem 7: Define the term Reynolds number.

problem 8: A flat plate 1.2 m wide, 0.35 m height and at 115o C is exposed to the ambient still air at 25o C.

Compute the given:

a) Maximum velocity at 180 mm from the leading edge of the plate.
b) The boundary layer thickness at 180 m from the leading edge of the plate.
c) Local heat transfer coefficient 180 mm from the leading edge of the plate.
d) Average heat transfer coefficient over the surface of the plate.
e) Total mass flow via the boundary.
f) Heat loss from the plate.

problem 9: A large vertical plate of 4m height is maintained at 606o C and exposed to atmospheric air at 106oC.

Compute the heat transfer if the plate is 10 m wide.

problem 10: A thin 100 cm long and 10 cm wide horizontal plate is maintained at a uniform temperature of 150oC in a large tank full of water at 75o C. Estimate the rate of heat to be supplied to the plate to maintain constant plate temperature as the heat is dissipated from either side of the plate.

problem 11: 205 kg/hr of air are cooled from 100o C to 30o C by flowing via a 3.5 cm inner diameter pipe coil bent into a helix of 0.6 m diameter. Compute the value of air side heat transfer coefficient, if the properties of air at 65o C are k = 0.0298 W/mK. µ = 0.003 kg/hr-m; Pr = 0.7; ρ = 1.044 kg/m3.

problem 12: Engine oil flows via a 50 mm diameter tube at an average temperature of 147o C. The flow velocity is 80 cm/s. Compute the average heat transfer coefficient if the tube wall is maintained at a temperature of 200o C and it is 2 m long.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M93715

Have any Question? 


Related Questions in Mechanical Engineering

The solution to problem isshow that bernoullis equation

The solution to Problem is Show that Bernoulli's equation applied between sections 1 and 2 does not give this result. Derive all expressions for the change in total head across a hydraulic jump. Problem:- As can often be ...

When choosing a bolting material we must consider its

When choosing a bolting material we must consider its affect on the clamping force to be created by those bolts in service. Name two important aspects of the clamping force which will be affected, in part at least, by th ...

If superman has a mass of 100 kg on his birth planet

If Superman has a mass of 100 kg on his birth planet Krypton, where the acceleration of gravity is 25 m/s2, determine (a) his weight on Krypton, in N, and (b) his mass, in kg, and weight, in N, on Earth whereg5 9.81 m/s2 ...

1 if the density of sea water is approximated by the

1. If the density of sea water is approximated by the equation of stat is the compressibility, determine the pressure and density at a point 32,000 ft below the surface of the sea. Assume β = 300,00 psi. 2. The change in ...

Consider the torsion of a thin-walled tube determine an

Consider the torsion of a thin-walled tube. Determine an approximate expression for the torque if the shear stress must be less than a given working stress τw. Express this result in terms of the tube's mean radius R and ...

It has been suggested that the control software for a

It has been suggested that the control software for a radiation therapy machine, used to treat patients with cancer, should be implemented using N-version programming. Comment on whether or not you think this is a good s ...

1 water in a container is originally at 100 kpa the water

1. Water in a container is originally at 100 kPa. The water is subjected to a pressure of 120 MPa. Determine the percentage decrease in its volume. 2. Determine the height to which water at 68°C will rise in a clean capi ...

Residential water use exclusive of fire protection runs

Residential water use, exclusive of fire protection, runs about 80 gallons per person per day. If the water is delivered to a residence at 60 psig, estimate the monthly energy required to pump the water from atmospheric ...

1 explain the read write erase operations of the fmosc

1. Explain the read, write, erase operations of the FMOSC memory cell shown in Fig. 674.4(b). Fig. 674.4 2. Is an initial charge up operation of the FMOSC memory cells necessary immediately after the d.c. power turned on ...

Suppose that the performance of a bjt transistor is

Suppose that the performance of a BJT transistor is entirely limited by emitter injection efficiency, which limits the d.c. beta, and base spreading resistance, which limits the bandwidth. Show that the gain-bandwidth pr ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen