Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Mechanisms of Heat Transfer01:14

Mechanisms of Heat Transfer

1.2K
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...
1.2K
Mechanism of heat transfer01:19

Mechanism of heat transfer

1.7K
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...
1.7K
Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

4.0K
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...
4.0K
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

5.4K
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.
5.4K
Second Law of Thermodynamics02:49

Second Law of Thermodynamics

26.0K
In the quest to identify a property that may reliably predict the spontaneity of a process, a promising candidate has been identified: entropy. Processes that involve an increase in entropy of the system (ΔS > 0) are very often spontaneous; however, examples to the contrary are plentiful. By expanding consideration of entropy changes to include the surroundings, a significant conclusion regarding the relation between this property and spontaneity may be reached. In thermodynamic models, the...
26.0K
Second Law of Thermodynamics00:53

Second Law of Thermodynamics

66.5K
The Second Law of Thermodynamics states that entropy, or the amount of disorder in a system, increases each time energy is transferred or transformed. Each energy transfer results in a certain amount of energy that is lost—usually in the form of heat—that increases the disorder of the surroundings. This can also be demonstrated in a classic food web. Herbivores harvest chemical energy from plants and release heat and carbon dioxide into the environment. Carnivores harvest the...
66.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Energy, Exergetic, and Thermoeconomic Analyses of Hydrogen-Fueled 1-kW Proton-Exchange Membrane Fuel Cell.

Entropy (Basel, Switzerland)·2024
Same author

Nucleation Process in Explosive Boiling Phenomena of Water on Micro-Platinum Wire.

Entropy (Basel, Switzerland)·2024
Same author

Immunogenicity and Protection against Foot-and-Mouth Disease Virus in Swine Intradermally Vaccinated with a Bivalent Vaccine of Foot-and-Mouth Disease Virus Type O and A.

Vaccines·2023
Same author

Role of Waste Cost in Thermoeconomic Analysis.

Entropy (Basel, Switzerland)·2020
Same author

Three Dimensional Measurement of Ideal Trajectory of Pedicle Screws of Subaxial Cervical Spine Using the Algorithm Could Be Applied for Robotic Screw Insertion.

Journal of Korean Neurosurgical Society·2019
Same author

Adhesive force measurement of steady-state water nano-meniscus: Effective surface tension at nanoscale.

Scientific reports·2018
Same journal

Research on a Regional Availability Evaluation Model for Road-Area High-Entropy Energy Based on Synergy Factors.

Entropy (Basel, Switzerland)·2026
Same journal

Atmospheric Turbulence Channel Modeling and Performance Analysis of a CO-ZP-OFDM Coherent Optical Communication System for UAV Air-to-Ground Scenarios.

Entropy (Basel, Switzerland)·2026
Same journal

Information Geometry and Asymptotic Theory for SMML Estimators.

Entropy (Basel, Switzerland)·2026
Same journal

Correlation Entropy and Power-Law Kinetics.

Entropy (Basel, Switzerland)·2026
Same journal

Research on the Contagion of Systemic Financial Risk Under the Impact of Climate Risks-From the Perspective of Complex Networks and Machine Learning.

Entropy (Basel, Switzerland)·2026
Same journal

The Statistical-Mechanical Meaning of the Wave Function of Quantum Mechanics.

Entropy (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Nov 27, 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

2.2K

Entropy Generation Due to the Heat Transfer for Evolving Spherical Objects.

Ho-Young Kwak1,2

  • 1Mechanical Engineering Department, Chung-Ang University, Seoul 06974, Korea.

Entropy (Basel, Switzerland)
|December 3, 2020
PubMed
Summary
This summary is machine-generated.

Entropy generation from heat transfer influences mini and microbubble evolution in solutions and supernovae expansion. This study explores how heat transfer impacts bubble dynamics and supernovae, noting positive entropy generation in both phenomena.

Keywords:
bubbleentropy generationheat transferlost worksupernova

More Related Videos

Uncoupling Coriolis Force and Rotating Buoyancy Effects on Full-Field Heat Transfer Properties of a Rotating Channel
10:03

Uncoupling Coriolis Force and Rotating Buoyancy Effects on Full-Field Heat Transfer Properties of a Rotating Channel

Published on: October 5, 2018

8.5K
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

12.1K

Related Experiment Videos

Last Updated: Nov 27, 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

2.2K
Uncoupling Coriolis Force and Rotating Buoyancy Effects on Full-Field Heat Transfer Properties of a Rotating Channel
10:03

Uncoupling Coriolis Force and Rotating Buoyancy Effects on Full-Field Heat Transfer Properties of a Rotating Channel

Published on: October 5, 2018

8.5K
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

12.1K

Area of Science:

  • Thermodynamics
  • Fluid Dynamics
  • Astrophysics

Background:

  • Bubble evolution is driven by pressure differences, but heat transfer at the interface significantly impacts dynamics, particularly in sonoluminescing bubbles.
  • Supernovae evolution is governed by gravitational forces, which radiate heat during expansion and collapse phases.
  • Entropy generation is a key thermodynamic concept linked to irreversible processes like heat transfer.

Purpose of the Study:

  • To investigate the role of entropy generation due to heat transfer in the evolution of mini and microbubbles.
  • To analyze how heat transfer is generated by gravitational energy and velocity in supernovae.
  • To establish a connection between heat transfer, entropy generation, and the dynamics of both bubbles and supernovae.

Main Methods:

  • Utilizing explicit solutions for hydrodynamic equations governing bubble motion.
  • Applying continuity, Euler, and Newtonian gravitational equations for supernovae analysis.
  • Analyzing the impact of heat transfer on entropy generation rates.

Main Results:

  • Heat transfer at the bubble-liquid interface delicately affects bubble evolution, especially in sonoluminescence.
  • Supernovae evolve via gravitational forces radiating heat during expansion or collapse.
  • Both bubble evolution and supernovae exhibit positive entropy generation rates due to heat transfer.

Conclusions:

  • Entropy generation from heat transfer is a critical factor in the dynamics of evolving bubbles and supernovae.
  • Heat transfer mechanisms in bubbles and supernovae are linked to their respective evolutionary processes.
  • The study highlights a universal principle of positive entropy generation in these distinct physical phenomena.