0
The current in the fluid is the result of a difference in temperature at different depths.
It's called convection, and it does the transferring of heat from the bottom to the top
of the fluid.
What sets up the convection currents is whatever it was that added heat to the
bottom of it. That could have been conduction, radiation, or a chemical process.
What else can I help you with?
What are the circumstances under which convection can occur in a substance?
One would need a fluid (water, air or the like) and something to drive currents within it. Here's the skinny right from our friends at Wikipedia: "Convection in the most general terms refers to the movement of currents within fluids (i.e. liquids, gases, and rheids)." Jumping off from there, let's look at an example of a heat transfer possibility. When we use the oven, the kitchen gets warm. There is a bit of thermal radiation, but skip that and just check the convection side. Air (a fluid) is against the outside of the oven door. As heat from the door is transferred to the air, it becomes less dense than the air around it, and it rises. Some "new" cooler air takes its place and the process continues. A convection current has spontaneously arisen. The process of heat transfer drives the convection cycle; it sets up those currents in the air around the oven. Soon the kitchen is warmer than it used to be.
What is a convection current current?
Convection currents are vertical movements of fluids driven by heat. Hot fluids rise because they are less dense than cold fluids which sink. The best example would be soup boiling - stuff in the soup comes to the surface over the flame and sinks back towards the edges of the pot. --------------------------------------------------------------------------------------- Current caused by the expansion of a liquid, solid, or gas as its temperature rises. The expanded material, being less dense, rises, while colder, denser material sinks. Material of neutral buoyancy moves laterally. Convection currents arise in the atmosphere above warm land masses or seas, giving rise to sea breezes and land breezes, respectively. In some heating systems, convection currents are used to carry hot water upwards in pipes. Convection currents in the hot, solid rock of the Earth's mantle help to drive the movement of the rigid plates making up the Earth's surface.
What tends to be more dense and flow under warm air?
the presision of heat and the sun sets charge lol not true
What causes thermal convection in the mantle?
Convection is a type of heat transfer that is driven by the flow of liquid, or by a solid or weak material. These convection cells that flows in a circular direction are caused by the initial heating of earth's core. Earth is hot due to the original formation, and what keeps the heat circulating is radioactive decay. As unstable elements decay, they release energy and heat, which promotes convection cells in earth's mantle.
Why does gypsum generate heat when set?
Gypsum generates heat when it sets due to an exothermic chemical reaction known as hydration. During hydration, gypsum particles absorb water and form crystals, releasing energy in the form of heat as the reaction progresses.
What are the types of heat flow and how do they differ?
Conduction (The transfer of heat from one substance to another by direct contact.) Convection (A technical way of saying that heat rises and this sets up air currents.) Radiation (Radiation describes any process in which energy travels through a medium or through space, ultimately to be absorbed by another body.)
What one process sets the energy in the transfer atmosphere in motion?
Atmospheric circulation sets the energy in the transfer atmosphere in motion
What are the circumstances under which convection can occur in a substance?
One would need a fluid (water, air or the like) and something to drive currents within it. Here's the skinny right from our friends at Wikipedia: "Convection in the most general terms refers to the movement of currents within fluids (i.e. liquids, gases, and rheids)." Jumping off from there, let's look at an example of a heat transfer possibility. When we use the oven, the kitchen gets warm. There is a bit of thermal radiation, but skip that and just check the convection side. Air (a fluid) is against the outside of the oven door. As heat from the door is transferred to the air, it becomes less dense than the air around it, and it rises. Some "new" cooler air takes its place and the process continues. A convection current has spontaneously arisen. The process of heat transfer drives the convection cycle; it sets up those currents in the air around the oven. Soon the kitchen is warmer than it used to be.
What is a convection current current?
Convection currents are vertical movements of fluids driven by heat. Hot fluids rise because they are less dense than cold fluids which sink. The best example would be soup boiling - stuff in the soup comes to the surface over the flame and sinks back towards the edges of the pot. --------------------------------------------------------------------------------------- Current caused by the expansion of a liquid, solid, or gas as its temperature rises. The expanded material, being less dense, rises, while colder, denser material sinks. Material of neutral buoyancy moves laterally. Convection currents arise in the atmosphere above warm land masses or seas, giving rise to sea breezes and land breezes, respectively. In some heating systems, convection currents are used to carry hot water upwards in pipes. Convection currents in the hot, solid rock of the Earth's mantle help to drive the movement of the rigid plates making up the Earth's surface.
Why is convection heat transfer caused by bulk movement of fluid particles?
Convection heat transfer occurs due to the bulk movement of fluid particles, such as air or water, which carry thermal energy from one place to another. As the fluid particles are heated, they become less dense and rise, while cooler particles sink. This movement sets up a current that transfers heat through the fluid.
Why do you heat hair curlers?
The heat sort of "sets" your hair in the shape your curlers make it
What sets convection currents into motion?
If you are heating water in a pan on the stove, the water at the bottom of the pan will warm first. Since warm water is lighter, it will rise, and cool water from the top will flow down to replace it. This is called convection, and will continue until all the water is hot. Convection currents can occur in large bodies of water, in the atmosphere, or beneath the earth's crust. All that is needed is a warmer, lighter fluid below a cooler, heavier one.
How is heat transferred into fluids?
When a fluid (liquid or gas) is heated, it expands. The heated fluid is therefore less dense than the fluid around it, so it rises.Colder fluid then sinks down to replace it and this sets up a movement of fluid called a CONVECTION CURRENT.
What are transfer tubings or sets used for?
to move a large amount of fluid into another container
What kind of heat transfer causes earths major wind patterns?
convection causes the heat transfer.
How does heat transfer help to setup a hurricane?
Heat transfer is a key driver in the formation of hurricanes as it provides the energy needed to fuel the storm. Warm ocean water heats the air above it, causing it to rise and create low pressure at the surface. This sets off a chain reaction of air movement and water vapor condensation, ultimately forming the intense winds and rains of a hurricane.
Why when a drop of wax from a burning candle falls on your hand do you feel heat?
Heat is transferred to your hand by conduction. The particles of the wax are moving faster than the particles in your skin and energy is transferred by collisions between the two sets of particles.
