Jove
Visualize
联系我们

相关概念视频

Conduction, Convection and Radiation: Problem Solving01:20

Conduction, Convection and Radiation: Problem Solving

1.3K
There are three methods by which heat transfer can take place: conduction, convection, and radiation. Each method has unique and interesting characteristics, but all three have two things in common: they transfer heat solely because of a temperature difference; and the greater the temperature difference, the faster the heat transfer.
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
1.3K
Mechanism of heat transfer01:19

Mechanism of heat transfer

1.2K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.2K
Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

3.3K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
3.3K
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

4.3K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
4.3K
Mechanisms of Heat Transfer01:14

Mechanisms of Heat Transfer

365
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
365
Temperature Dependent Deformation01:12

Temperature Dependent Deformation

171
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
171

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Numerical Analysis of the Dynamic Properties of Bionic Raster Ceilings.

Materials (Basel, Switzerland)·2024
Same author

A Finite Difference Algorithm Applied to the Averaged Equations of the Heat Conduction Issue in Biperiodic Composites-Robin Boundary Conditions.

Materials (Basel, Switzerland)·2021
查看所有相关文章
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关实验视频

Updated: Jul 21, 2025

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

1.9K

复合结构对温度分布的影响-使用有限差异方法进行分析.

Ewelina Kubacka1, Piotr Ostrowski1

  • 1Department of Structural Mechanics, Łódź University of Technology, 93-590 Łódź, Poland.

Materials (Basel, Switzerland)
|July 29, 2023
PubMed
概括

这项研究研究了复合材料的热传导,分析了材料的组成和结构如何影响温度分布. 研究结果显示,复合结构显著影响热性能和传热.

科学领域:

  • 材料科学 材料科学 材料科学
  • 热传递工程 热传递工程
  • 计算力学 计算力学 计算力学

背景情况:

  • 复合材料通过结合不同的组成材料来提供可调节的特性.
  • 材料的分布和类型显著影响复合材料的特性,包括导热性.
  • 了解复合材料的热传导对于设计先进材料至关重要.

研究的目的:

  • 为了研究复合材料内的温度分布.
  • 分析构成材料类型和空间布局对传热的影响.
  • 提供有关周期性,双周期性和功能分级复合材料的热行为的见解.

主要方法:

  • 热传导的微分方程是使用公差平均化技术得出的.
  • 用有限差异方法来解决衍生微分方程.
  • 为了可视化传热特性,生成温度分布图.

主要成果:

  • 该研究成功地模拟了各种复合结构中的温度分布.
  • 结果表明,复合结构和传热效率之间存在明显的相关性.
  • 分析揭示了材料放置如何影响复合材料内的热梯度.

结论:

关键词:
两个周期结构的结构.这是一个复合材料.有限差方法的方法是有限差的.传热传热传热传热传热传热传热传热周期结构是周期结构.

更多相关视频

Characterization of Thermal Transport in One-dimensional Solid Materials
05:20

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

17.4K
Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames
10:29

Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames

Published on: June 1, 2016

11.9K

相关实验视频

Last Updated: Jul 21, 2025

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

1.9K
Characterization of Thermal Transport in One-dimensional Solid Materials
05:20

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

17.4K
Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames
10:29

Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames

Published on: June 1, 2016

11.9K
  • 复合材料的结构和构成材料极大地影响其热性能.
  • 宽容平均技术和有限差异方法是分析复合材料热传导的有效工具.
  • 这项研究为优化特定热管理应用的复合材料设计提供了基础.