英文読解
When a liquid travels along a tube, it may do so in either of two ways.It may travel by
means of laminar flow or turbulent flow. These two forms of flow can be demonstrated by an
experiment in which a very fine stream of coloured ink is injected into a tube of water. When
the pressure of this jet of ink is at the correct level, the ink will form a uniform stream which
passes through the water without mixing with it. It remains a separate layer,or lamina of liquid
--hence the term laminar flow--and the force of the liquid is used to push it forward
through the water. None of the force is used to push the liquid sideways into the water.
However,if the pressure of the flow of ink is increased beyond a certain value,the ink will mix
with the water as soon as it enters the tube. Much of the force of the liquid is in this case used
in side-to-side movement in mixing with the water and striking the side of the tube. The ink
becomes thoroughly mixed with the water, and in this case the flow is known as turbulent flow.
Various factors will determine whether the flow of liquid through a tube will be turbulent or
laminar. As will be seen if the pressure of the ink is increased as it enters the waterm the greater
the force of the liquid, the more likely turbulence is to occur. If the experiment is carried out
that the diameter of the tube has an effect on whether laminar or turbulent flow takes place.
It will be found that turbulent flow is more likely to occur as the tube becomes narrower.
Thirdly, if the diameter of the tube is irregular, or if the tube is bent, turbulent flow is more
likely to occur than in a uniform diameter tube.
上記の文を読んで、以下の問に英語で答えてください。お願いします。
1A.What is likely to happen if the diameter of the tube is reduced?
1B.What is likely to happen if the diameter of the tube is increased?
2.How many different factors can influence whether the flow of liquid in a tube is laminar or turbulent?
3.What does the force of the liquid do when the flow is laminar?
