Dwarf fortress water pressure

Dwarf Fortress features some pretty complex behavior in an attempt to simulate fluid mechanics. One aspect of this behavior is seen in the form of pressure, dwarf fortress water pressure. The basic idea here is quite simple - certain forms of fluids movement exert pressurecausing them to potentially move upwards into other areas.

Home Discussions Workshop Market Broadcasts. Change language. Install Steam. Store Page. Dwarf Fortress Store Page. If I have a river on Z 10 as my water source, and my well on level Z 5, with my reservoir on Z 4, can I use the diagonal block method to bring my water pressure down to Z 4 without it flooding it's way back up to Z 5?

Dwarf fortress water pressure

There are several mechanisms at work that try to simulate water pressure in game. While on the whole amazingly accurate, there are several unexpected quirks concerning speed and displacement. Never think you are on the safe side, especially when trying to trick the game. A technical explanation by Kanddak from the Bay12 Forum outlines in detail what is known of the in-game fluid mechanics from player testing. Dwarf Fortress attempts to replicate hydrostatic water pressure. This is probably one of the most prominent components, as Toady discussed it at length in an interview with gamasutra. In layman's terms, if you have a body of water that is higher than an open space below it such as a tall tower full of water and a hose from it, or a lake over a mine , and an open route between them, then the water at the lowest z-level will be 'pressed' by the weight of the water above it. As a simple model, think of a pipe shaped like a "J". If you pour water in the taller end of the pipe, it will come "up" out of the lower end until the water levels on both sides are equal. If you put your thumb over the lower end and fill the taller end, then release your thumb, the water will move with remarkable speed, and water will continue to come "up" out that lower end until all the water in the taller part is at the same level as the lower part. This is one part of Dwarf Fortress "water pressure" - that if the source is higher, water can come up stairs , up ramps , and over channel , and will continue flowing until it runs out of space or runs out of water above it. Note that DF water pressure does not exactly match natural hydrostatic water pressure - it fills to a z-level one level lower than the source.

In this final example, to illustrate the usage of pressure regulators in modifying and obtaining custom pressures, when the regulator is omitted the output pressure will be the sum of both the input pressure, and the drop pressure. Namespaces 40d Discussion. If I have a river on Z 10 as my water source, and my well on level Z 5, dwarf fortress water pressure, with my reservoir on Z 4, can I use the diagonal block method to bring my water pressure down to Z dwarf fortress water pressure without it flooding it's way back up to Z 5?

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Water is a fluid found all over the world. It flows from mountain springs, forming the world's oceans , lakes , rivers , and brooks , falling as rain and snow , and freezes into ice. Water is home to a variety of aquatic creatures. Many creatures can swim in deep water, but air-breathing creatures that are submerged in water can drown in it. Water comes in two varieties: freshwater , which makes up almost all inland water, and saltwater , which fills the seas.

Dwarf fortress water pressure

Dwarf Fortress features some pretty complex behavior in an attempt to simulate fluid mechanics. One aspect of this behavior is seen in the form of pressure. The basic idea here is quite simple - certain forms of fluids movement exert pressure , causing them to potentially move upwards into other areas. In Dwarf Fortress , contrary to what many people may believe, pressure is not a property of a body of liquid. When a liquid is moved or created with pressure, it attempts to locate the nearest tile on the same Z-level as its destination tile for falling water, this is 1 Z-level beneath its original location by moving north, south, east, west, down, or up. As it tries to locate an appropriate destination, the liquid will first only try to move sideways and downward - only when this fails will it attempt to move upward. Pressure will not propagate through diagonal gaps. A U-Bend is a channel that digs down, and curves back up. With pressure a fluid will be pushed up the other side of the u-bend.

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Using the information above, you can devise a number of ways to get the water where you want it to be. Note that fortifications do not neutralize pressure. If there is an outlet, but it can not take all the water coming in, the water will look for further outlets. A common adaption of this behaviour is feeding water through a diagonal tile "to take the pressure out":. Liquids moving via pressure can only move to orthogonally adjacent tiles. Of course, there is a downside - you still have to run the pumps and due to the source water's pressure, the pump must be powered instead of run by a dwarf , as the tile the dwarf needs to stand on is filled by water. Such a setup is significantly more complicated than the other two options, but it can produce controlled amounts of water at varying depths and pressures. More to the point, it applies always, but is in many cases not the final mechanism causing equilibrium. Magma does not exert pressure when it falls downward. By forcing fluids through a diagonal connection you can prevent pressure from propagating past a certain point.

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In Dwarf Fortress , contrary to what many people may believe, pressure is not a property of a body of liquid. There are several mechanisms at work that try to simulate water pressure in game. Multiple adjacent pumps will also transfer power between themselves automatically. Back to the Main FAQ. Wall Wall that would flood with pressurized water if dug Pump facing left, with the right tile flooded Floor Pressurized water "Unpressurized" water Axle. Material properties. Showing 1 - 2 of 2 comments. It is important to note that the output pressure is at the bottom of the mechanism, and will therefore follow the above rules for "Water in a U-Bend". One of the more simple examples is using an active control system and mechanical cycling. This notice may be cached—the current version can be found here. Views Read Edit View history. The key to understanding how high a z-level water will reach is to understand which tile s pressure is being exerted on. This does not work on a vertical basis - water only travels vertically to a different z-level, never diagonally.