- Do gases usually have a constant specific weight?
- What increases in altitude is necessary in the stratosphere to halve the pressure? Assume a constant temperature of -56°C and the gas constant, R=287J/Kg/K.
- Write down the continuity law for compressible fluids.
- Describe the streamlines around a wing-shaped body.
- State the three characteristics of each of the following flows
Learn more aboutNeed a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Determine the velocity profile within a 12 µm diameter capillary, with a viscosity of 4 cP, and a pressure gradient of 25 mm Hg/500 µm. Assume that gravitational effects can be ignored and that the blood vessel is perfectly cylindrical.
What is the equation for the streamlines of the flow?
What is the kind of stress applied on the illustration which has caused the fluid to create a velocity profile? a. Shear Stress b. Normal Stress c. Friction
Answer the following: What are the characteristics of laminar and turbulent flow? Cite examples of fluids which are laminar and turblulent. What is Reynold’s number? What is its relevance in fluid flow. Define viscosity and ts properties.
What is Reynold’s number? What is its relevance in fluid flow. Define viscosity and ts properties.
A large plate is pulled at a constant speed of U = 4 m/s over a fixed plate on 5-mm-thick engine oil film at 20°C. Assuming a half-parabolic velocity profile in the oil film, as sketched, determine the shear stress developed on the upper plate and its direction. What would happen if a linear velocity profile were assumed?
What is a fluid? Define mass density, specific weight, and real and ideal fluids. Differentiate between kinematics and statics.
A fluid with a velocity of 30 m/s flows past a sphere with a radius of 40 mm. The density and viscosity of the fluid is1.32 kg/m3 and 3.6 x 10-5Pa.s, respectively. Calculate the force exerted on the sphere? (CD = 0.31)
In your own words, c. Explain why the stream function ψ is restricted to 2-D flows and you have to use the velocity potential ζ to define 3-D flows.
Before cooking dinner, I pour oil into the center of a frying pan at a rate of 10^-6 m^3 /s. Once it hits the pan, the oil flows outwards from the center in a 2mm-thick layer, forming a perfectly circular disc. Assume the oil velocity is purely radial in this thin layer, and it is uniform in the vertical direction. a. What is the oil velocity 5 cm from the center? b. What is the oil velocity 10 cm from the center? ***Ps. if you can just guide me through the concept and pointing out which equation to use please***
Explain in your own words: How does velocity affect the types of fluid flow?
Explain in your own words: In the study of fluid phenomena, how does Newton's Law of Viscosity affect your calculations?
SEE MORE QUESTIONS
Recommended textbooks for you