【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20190821
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Question: What is a temperature gradient? What is the difference between its direction and the direction of heat transfer? There are no answers provided for this series of posts; fellow netizens are free to share their own opinions – just reply with what you understand. Replies earn rewards ranging from 5 to 15 points; all forum members are welcome to participate actively and support the development of the forum! ! ! Chemical Equipment and Machinery
“A “temperature gradient” refers to the rate and direction of temperature change. A larger temperature change over a certain distance indicates a greater temperature gradient, and the direction of the temperature gradient is the same as the direction of the temperature change. The direction of the temperature gradient is from lower temperatures to higher temperatures, which is opposite to the direction of heat conduction.
The rate of temperature change in the direction of the normal to the isotherm surface is called the temperature gradient. Its direction is opposite to the direction of heat transfer.
The temperature gradient is a physical quantity that describes the direction in which, and at what rate, the fastest changes in temperature occur within a specific area
The temperature gradient is a physical quantity that describes the direction in which, and at what rate, the fastest changes in temperature occur within a specific area
“A “temperature gradient” refers to the rate and direction of temperature change. A larger temperature change over a certain distance indicates a greater temperature gradient, and the direction of the temperature gradient is the same as the direction of the temperature change. The direction of the temperature gradient is from lower temperatures to higher temperatures, which is opposite to the direction of heat conduction.
The rate of temperature change per unit length in the tangent direction of an isotherm is the temperature gradient, whose direction is opposite to that of heat transfer
A temperature gradient is a vector with a direction. Its direction is along the normal to the isotherm, from low temperature to high temperature. The temperature gradient is in the opposite direction to the heat transfer.
The rate of temperature change in the direction of the normal to the isotherm surface is called the temperature gradient. Its direction is opposite to the direction of heat transfer.
Temperature gradient: The rate of change of temperature in the direction of the normal to the isotherm surface. The temperature gradient is in the opposite direction to the heat transfer.
A temperature gradient is the phenomenon in nature where temperatures, whether of air, water, or soil, increase or decrease in a stepwise manner as one moves upward in elevation over land or deeper into water or soil. (copied from elsewhere). The temperature gradient generally takes the direction of increasing temperature as the positive direction, while heat transfer occurs from high to low temperature; therefore, it can be said that the direction of the temperature gradient is opposite to that of heat transfer.