Riser
The outer core of the mantle can be liquid.
It depends on the magnetic properties of the liquid, not on the viscosity.
the rock that can flow like a liquid is a mantle because the mantle has two parts. The upper part is the solid rock. The solid rock of the mantle is part is the lithosphere. Below the solid rock, the mantle rock has the ability to flow like a liquid. Most of the mantle is made up of rock that can flow. Sanjida Ahmed 752/753
Convection currents are the flow of fluid (liquid or gas) caused by the molecular motion resulting from the transfer of heat through the fluid. In meteorology it is the vertical movement of atmospheric gases caused by heat, atmospheric pressure, condensation of water vapor, and other factors.
It is the ability of the mantle (solid) to flow like liquid.
An upward flow of (warm) air is known as a Thermal .
Gastroesophageal reflux disease is the upward flow of acid from the stomach into the esophagus.
Air flowing quickly over the open top of a vertical tube lowers the air pressure in it. This causes liquid in the tube to rise. (It rises due to the higher pressure acting on the other end. The tube is marked to indicate the wind speed. Alternatively, if the open vertical tube is in still air and it is connected at its lower end with a horizontal tube containing a flowing liquid, the liquid in the vertical tube will fall when the horizontal flow past the lower end increases.
In a packed or tray column where you have vapor flowing up and liquid flowing down, there is an upper limit to how fast the liquid can drain downwards. The point at which liquid cannot flow down as fast as it is coming into the column is the "flooding point". The actual flooding point is partly dependent on how fast the liquid can flow down with no vapor flowing upwards and the rate at which vapor is trying to flow upwards. Cross sections of the column occupied by vapor are not available for liquid flow - effectively reducing the cross-section for downward flow of the liquid. You also get entrainment of liquid in the upward flowing vapor and drag on the liquid as it fights the direction of the vapor flow - the vapor wants to go up while the liquid wants to go down. This additional drag also slows down the flow of liquid trying to drain downward in the column. There is an analogous condition for two-phase liquid/liquid extraction columns.
Convection waves are a churning upward motion from the up welling of warm liquid or gas, and the concurrent downward flow of cooler material to take its place.
a liquid is able to flow because its freely moving particles allow liquid to flow from place to place
The river does not flow upwards. The Earth is round, the Nile simply flows South to North - on a map it just looks like it flows "upward"
by transfer of heat by the movement of air ,gases or heated liquid between areas of unequal density,upward flow of warm air
of course liquid can flow through a pipe?
The flow path of a heated liquid will vary. For the in cross-flow heat the liquid path is perpendicular to each other but in counter-current heat,the liquids flow in opposite directions.
Flow
A device for controlling the flow of liquid can sometimes be a pipe.