Hello Rikudemyx! (May I call you Rik?)
I agree with your ideas about down-flooding. Water flows down.. not up-hill.
Sam Halpern has done a lot of very good in-depth work on this very subject. I suggest you read his "Why a Low Angle Break" article and other articles he has written on the subject. You'll find most of them in encyclopediatitanica.org.
Here's some ideas for you and others to play with.
If a ship starts to sink down by the head and with a list to one side, the water entering the hull should rise evenly within it. If the flood water has free access to all compartments, it will continue to do so until the vessel finally looses all buoyancy and she sinks. The original list should remain the same value and the ship should simply 'settle' in the water. There's a thing called Free Surface Effect
which would almost certainly make sure this ideal did not happen,but I'm talking 'ideal'.
When such a ship sinks due to a hole or holes in her hull, she does not do so because she gains weight. She does not gain or loose weight, but simply looses all of her buoyancy.
just lost buoyancy. however when water 'spilled-over' into an unbreached space between WT buklheads it was the same as adding weight.. much like filling a sealed tank. However in the case of Titanic, her 'tanks' were not sealed.
The idea that somehow, water flowed across and then, toward the stern along the broad service allyway known as Scotland Road
is a compelling one but vitually impossible since the water rose while the ship was listed to starboard.
As it rose, the water would seep evenly left, right, forard and aft within the confines of WT 'walls'. When it rose above the WT 'walls', it would breach all non WT restrictions.
Here's a (tongue-in- cheek)thought:
Perhaps the ship became up-right as retained buoyancy on the low (starboard side) began acting upward and counteracting the sinking action? If it did, then the ship would come level and water would begin to flow across the entire width. The ship would continue to sink while upright. However, shortly after that, the loss of buoyancy due to down-flooding (water entering the hull) would become greater on the port side than the retained buoyancy on the starboard side. Then, the port side would then be less buoyant and a port list would start. If nothing else happened, then the ship would keep heeling to port until she overturned. If however, equilibrium was reached or(Starboard side ballanced-out port side), she would continue to settle with a fixed port list until she finally sank.
Just a thought: an uneven distribution of bottom weight would exist if the port side boilers were full and the starboard ones empty.
Now: considering all things being equall and no uneven forces acting upward.....
As the water rose and spread out, it 'spilled-over and downward into an intact compartment. This would be the equivallent of adding weight to the ship. Then she would loose buoyancy due to her hull displacing the sea water around it as she sank deeper. However, once again, if the compartment that spill-over water entered was the full width of the hull i.e. a boiler room, it would have little or no effect on the angle of heel and the ship would still be heeled to starboard.
Any such spill-over would intially enter boiler room 5 from boiler room 6. Then it would progress to boiler room 4. All of these compartments were very low in the ship so would have little effect in contributing to a serious change of heel in a short time.
to have changed her heel by so much in such a short time, it had to have been caused by weight transfer. Since water cannot flow uphill, and water entering the hull does not add weight; it follows that it must have been caused by the transfer of existing weight within the hull. Specifically weight being transferred from the right (starboard)side to the left (Port)side. The size of such a weight would be inversely proportional to it's height above the ship's center of gravity. i.e. the higher the weight above the C of G; the less of it needed to change the heel. There were only two major sources of moveable weight within Titanic's
hull. These were people and liquids within tanks. The latter was way down low so would have little effect unles it ws in great volume. This would mean flooding tanks or transferring ballast.
People were highly mobile and what is more, could occupy the uppermosts decks of the ship.
So what caused Titanic
to come upright from being over to starboard then heel in the opposite direction?
The clear evidence of a port side list can be found from accounts of the gap between the ship's side and the sides of the lifeboats hanging in the davits. The phenomenon of a passenger ship heeling to one side or the other due to large accumulations of passengers to one side o the centre-line on an upper deck is well known to passenger ship men... particularly those used to coastal waters ferries in the old days. From the evidence, we can see it was familiar to Chief Officer Wilde. (Me too! I have frequent personal experience of such a thing.)
I suggest to you and everyone else that there was only one reason for Titanic's
port list and that was the enormous mass of humanity located on and above 'A' deck. The port side boats were the last to go. The last starboard side lifeboat went 40 minutes before the ship sank.
However, I'm perfectly happy to bow to superior knowledge and/or consider an alternative theory.