Home / Questions / Oil spills on water can be removed by lowering a moving belt of width W into the water The...
Oil spills on water can be removed by lowering a moving belt of width W into the water. The belt moves upward and skims the oil into a reservoir aboard the ship as shown in the figure below.
a) Show that the velocity profile and the volumetric flow rate are given by
b) Determine the belt speed that will give a zero volumetric flow rate and specify the design criteria for positive and negative flow rates.
9.4 For laminar flow of a Newtonian fluid in a circular pipe, the velocity profile is parabolic and Eqs. (9.1-80) and (9.1-84) indicate that
Eqs. (9.1-80)
Eqs. (9.1-84)
In the case of a turbulent flow, experimentally determined velocity profiles can be represented in the form
where n depends on the value of the Reynolds number. Show that the ratio <v_{z}>/v_{max} is given as (Whitaker, 1968)
Re |
n |
v_{z}/v_{max} |
4×10^{3} |
6 |
0.79 |
1×10^{5} |
7 |
0.82 |
3×10^{6} |
10 |
0.87 |
This is the reason why the velocity profile for a turbulent flow is generally considered “flat” in engineering analysis.
Jul 25 2020 View more View Less
Software
Mar 17 2020Given today's competitive job market, it might be tempting to puff up your résumé. You certainly wouldn't be alone in telling fibs or outright whoppers. A recent CareerBu...
Aug 23 2021For the fixed-fixed beam subjected to the uniform load w shown in Figure P4–12, determine the midspan deflection and the reactions. Draw the shear force and bending momen...
Aug 01 2020Sketching a Parabola in Exercise 11-16, find the vertex, focus, and directrix of the parabola and sketch the graph.
Jun 15 2021Find the derivative.
Jun 25 20211. Describe the hiring decision of a perfectly discriminating mon-opsonist and of a non-discriminating mon-opsonist. In what sense do mon-opsonists "exploit" workers?2. S...
May 11 2020Impact of Environmental Factors on Bussiness Organisations
Aug 08 2020Explain equivalent units. Why are equivalent-unit calculations necessary in process costing?
Apr 02 2020What is the name of each compound in Questions 55-60?a. Ba(BrO32b. K2C2O4 (C2O42-, oxalate ion)c. Al(HTeO43 (Te, tellurium, Z = 52)d. K2SeO3 (Se, selenium, Z = 34)
Jun 17 20213. When looking at market segmentation, there are 2 main segment types. These are: a) Production and support b) Individual and family c) Mass and niche d) Consumer and bu...
May 08 2021