2000 m² with a speed of 40 ta velocity corresponding t N. Determine the following the model. 0- A F₁C, PAV², C= R
2000 m² with a speed of 40 ta velocity corresponding t N. Determine the following the model. 0- A F₁C, PAV², C= R
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter12: Subsurface Exploration
Section: Chapter Questions
Problem 12.9P
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![It is proposed to design a ship. The proposed ship (prototype) is has a length of 150
m and wetted surface area of 2000 m² with a speed of 40 km/hr. A model of 1:20 is to
be tested in the laboratory at a velocity corresponding to the wave resistance. The
total drag on the model is 50 N. Determine the following
(1) Wave resistance drag of the model.
0.074
Given friction drag, F, C, PAV², C.-
=
for R <2 x 10¹,
Re%2
C₂= =
0.01
Re-2
for Re> 2 × 10¹
Pmode
= 1000 kg/m³, Pr
= 1020 kg/m³,
prototype
V, 1.125 x 10 m²/sec, v
= 1.11 x 10 m²/sec.
m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1fd42612-5181-4a73-ae4e-aa770c591a85%2Fec225c42-e0f7-4f0c-87e3-bffbc74a2ab6%2Fgwyuncq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:It is proposed to design a ship. The proposed ship (prototype) is has a length of 150
m and wetted surface area of 2000 m² with a speed of 40 km/hr. A model of 1:20 is to
be tested in the laboratory at a velocity corresponding to the wave resistance. The
total drag on the model is 50 N. Determine the following
(1) Wave resistance drag of the model.
0.074
Given friction drag, F, C, PAV², C.-
=
for R <2 x 10¹,
Re%2
C₂= =
0.01
Re-2
for Re> 2 × 10¹
Pmode
= 1000 kg/m³, Pr
= 1020 kg/m³,
prototype
V, 1.125 x 10 m²/sec, v
= 1.11 x 10 m²/sec.
m
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