August 2014 Mission Statement Background
Download 11.38 Mb.
|
- Navigate this page:
- Appendix M
Appendix LWall thickness for the concrete legs to float Details of notations on page 51 Equation for floatation:  (L-1) [Edi78]30
Specific density equal 2.4 for concrete [Edi78]30, so inner-outer diameter ratio becomes: 
Rewriting inner diameter in terms of outer diameter: 
The thickness of a hollow cylinder is: 
Minimum outer diameter to both allow buoyancy and to resist 100-year Atlantic wave: Force from 100-year Atlantic wave = 40MN Concrete grade = 55 MPa Assuming post-tensioned to 20% of 55 MPa, so =0.2*55=11 MPa  (L-2)
 (L-3)
Appendix MCalculating velocity of sand particle in water Details of notations on page 51 Stokes law for a sphere:  (M-1) [Tem53]31
For a sphere in water, the free body diagram will be such that the force pulling it down will equal to the drag force and buoyancy force together. In other words: The buoyancy force will be the weight of displaced fluid, which depends on the volume taken up by the sphere. Volume of a sphere is: So for buoyancy force, 
This is re-arranged in the following steps, where p is short for particle: 
 (M-4)
For 0.5 mm diameter kiln sand with 2600 kg/m3 density for a silica crystal, its velocity in water where density is 998 kg/m3 and viscosity is 0.001 Pa*s is: 
This means that Reynolds number is:  Directory: shs shs -> Stonelaw Mathematics Department Green Course Revision Sheets Block E shs -> Core Classes Offered by Department Indicates ncaa clearinghouse Approved Core Class english shs -> Identify the prepositional phrases in the following sentences. Write them on a separate piece of paper shs -> Smart Phone Class Security and Safety shs -> Bordon Luciano shs -> 1 Week before Scheduled Contact shs -> Informative Research Essay Assignment shs -> 10th Daily “Fix It” Sentences shs -> The story of Perseus as told by Diodorus Download 11.38 Mb. Share with your friends:
|
(M-2)
(M-3)
, where f is for fluid. (M-2) can therefore be re-written to:
(M-5) [Sch79]32