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Branch of science and engineering
Thermal fluids, or thermofluids, is a branch of science and engineering encompassing four intersecting fields: heat transfer, thermodynamics, fluid mechanics
Thermal_fluids
Thermal engineering discipline concerning transfer of heat in physical systems
transport in fluids, such as advection of pebbles in a river. In the case of heat transfer in fluids, where transport by advection in a fluid is always also
Heat_transfer
Study of hydraulic flow in thermal fluids
Thermal hydraulics (also called thermohydraulics) is the study of hydraulic flow in thermal fluids. The area can be mainly divided into three parts: thermodynamics
Thermal_hydraulics
Subfield of mechanical engineering specializing in movement of heat energy
conversion of heat energy within or between thermal systems. Thermal engineers must apply the laws of thermodynamics, fluid mechanics, and heat transfer to design
Thermal_engineering
Chinese-American mechanical engineer
engineer whose research interests include interface and colloid science, thermal fluids, and multiphase flow. She is currently the Dean's Professor and Department
Ying Sun (mechanical engineer)
Ying_Sun_(mechanical_engineer)
Ratio of a fluid's advective and diffusive transport rates
number and the Schmidt number (Re × Sc). In the context of the thermal fluids, the thermal Péclet number is equivalent to the product of the Reynolds number
Péclet_number
Process by which heat is transferred within an object
In thermodynamics, thermal conduction is the diffusion of thermal energy (heat) within one material or between materials in contact. The higher temperature
Thermal_conduction
Fluid used as an intermediary in a cooling or heating process
a process, transporting and storing thermal energy, and heating on another side of a process. Heat transfer fluids are used in countless applications and
Heat-transfer_fluid
Capacity of a material to conduct heat
solid materials, the thermal properties of fluids are more difficult to study experimentally. This is because in addition to thermal conduction, convective
Thermal conductivity and resistivity
Thermal_conductivity_and_resistivity
Fluid flow that occurs due to heterogeneous fluid properties and body forces
of fluids (liquids or gases), where warmer, less-dense material rises and cooler, denser material sinks. It is a single-phase or multiphase fluid flow
Convection
Force distributed over an area
Learning Inc". 2023-03-28. Retrieved 2024-02-11. "Thermal-FluidsPedia | Pressure (Thermodynamics) | Thermal-Fluids Central". www.thermalfluidscentral.org. Retrieved
Pressure
Minimization of heat transfer
{\displaystyle P={\frac {kA\,\Delta T}{d}}} Thermal conductivity depends on the material and for fluids, its temperature and pressure. For comparison
Thermal_insulation
Substance used to reduce or regulate the temperature of a system
the primary heat transfer fluid. Polyalkylene glycol (PAG) is used as high temperature, thermally stable heat transfer fluids exhibiting strong resistance
Coolant
Type of heating device
heaters usually use metal coils, nickel-chromium, resistance wire, thermal fluids, or ceramic. A panel heater is a type of electric convection heater
Convection_heater
code, thermal hydraulics, lattice Boltzmann methods and more. Physics portal Ansys CFD in buildings Combustion models for CFD Computational fluid dynamics
List of computational fluid dynamics software
List_of_computational_fluid_dynamics_software
Infinity Fluids, founded in 1998, is a Massachusetts corporation which develops process and thermal systems for the fuel cell, pharmaceutical, industrial
Infinity_Fluids
Aspects of fluid mechanics involving fluid flow
physical chemistry, and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids – liquids and gases. It has several
Fluid_dynamics
The Italian Union of Thermal-fluid Dynamics (acronym UIT) is a nonprofit scientific association of persons or entities interested in research and technological
Italian union of thermal-fluid dynamics
Italian_union_of_thermal-fluid_dynamics
Tendency of matter to change volume in response to a change in temperature
area. The volumetric thermal expansion coefficient is the most basic thermal expansion coefficient, and the most relevant for fluids. In general, substances
Thermal_expansion
Heat transfer due to the movement of fluid
movement of a fluid by means other than buoyancy forces (for example, a water pump in an automobile engine). Thermal expansion of fluids may also force
Convection_(heat_transfer)
dynamics, the bulk temperature, or the average bulk temperature in the thermal fluid, is a convenient reference point for evaluating properties related to
Bulk_temperature
Fluid used to maximize thermal contact
Thermal paste (also called thermal compound, thermal grease, thermal interface material (TIM), thermal gel, heat paste, heat sink compound, heat sink paste
Thermal_paste
Passive heat exchanger that transfers heat
thermal conductivity, such as aluminium or copper. A heat sink transfers thermal energy from a higher-temperature device to a lower-temperature fluid
Heat_sink
Medium to transfer power in hydraulic machinery
available with specialized fluids. Water-glycol and polyol-ester are some of these specialized fluids that contain excellent thermal and hydrolytic properties
Hydraulic_fluid
Properties of a thermal boundary layer
properties of the thermal boundary layer formed by a heated (or cooled) fluid moving along a heated (or cooled) wall. In many ways, the thermal boundary layer
Thermal boundary layer thickness and shape
Thermal_boundary_layer_thickness_and_shape
Regulation of the temperature of electronic circuitry to prevent inefficiency or failure
sink and whatever it is in direct thermal contact with. Use of fluids (for example coolants in refrigeration) and thermal interface material (in cooling
Thermal management (electronics)
Thermal_management_(electronics)
Solar energy technology
electricity, with a solar thermal collector, which transfers the otherwise unused waste heat from the PV module to a heat transfer fluid. By combining electricity
Photovoltaic thermal hybrid solar collector
Photovoltaic_thermal_hybrid_solar_collector
In which the radiative thermal environment is controlled
liquids or fluids through thermal shrouds for cold temperatures or through the application of thermal lamps for high temperatures. Thermal vacuum chambers
Thermal_vacuum_chamber
Manufacturer of industrial water heaters, control systems and regulators
Leslie Controls, Inc., part of the Thermal Fluid Division of Circor International Inc., is a manufacturer of industrial water heaters, control systems
Leslie_Controls
Spring produced by the emergence of geothermally heated groundwater
fed by hydrothermal fluids rich in hydrogen sulfide (H2S), which is oxidized to form sulfuric acid, H2SO4. The pH of the fluids is thereby lowered to
Hot_spring
System that converts heat or thermal energy to mechanical work
for a thermal spectrum reactor. Exploit the chemical properties of the working fluid. A fairly new and novel exploit is to use exotic working fluids with
Heat_engine
Technologies to store thermal energy
Thermal energy storage (TES) is the storage of thermal energy for later reuse. Employing widely different technologies, it allows thermal energy to be
Thermal_energy_storage
Dimensionless quantity associated with free convection of a fluid
and thermal diffusivities: Ra = B/μ × ν/α. It is closely related to the Nusselt number (Nu). The Rayleigh number describes the behaviour of fluids (such
Rayleigh_number
State of matter
vent fluids up to 400 °C. The fluids appear like great black billowing clouds of smoke due to the precipitation of dissolved metals in the fluid. It is
Supercritical_fluid
Variation on the Rankine thermodynamic cycle
preferred, which disadvantages "wet" fluids (that are in two-phase state at the end of the expansion). In the case of dry fluids, a regenerator should be used
Organic_Rankine_cycle
3D printing technique
Additionally, although SLM solidifies a structure from molten metal, the thermal fluid dynamics of the system often produces inhomogeneous compositions or
Selective_laser_melting
Optical device for concentrating light
absorber into some thermal fluid (this is typically oil capable of maintaining a liquid state at very high temperatures). The fluid then goes through a
Compact linear Fresnel reflector
Compact_linear_Fresnel_reflector
Physical law relating heat loss to temperature difference
is the dimensionless Biot number. If the thermal resistance at the fluid/sphere interface exceeds that thermal resistance offered by the interior of the
Newton's_law_of_cooling
Fluid property prediction software
tension, viscosity, and thermal conductivity for many fluids, either using extended corresponding states formulations or fluid-specific equations fit directly
REFPROP
Software environment for propulsion system simulation
simulation environment used for the analysis of propulsion, power, and thermal fluid systems. It is used in the aerospace industry for modeling turbomachinery
Numerical Propulsion System Simulation
Numerical_Propulsion_System_Simulation
Device that collects heat
by underground tank storage of heated fluids. Molten salts have been used to good effect. Other working fluids, such as liquid metals, have also been
Solar_thermal_collector
Type of resistor whose resistance varies with temperature
6-29 to 6-41. ISBN 0408001682. "Thermal-FluidsPedia | Temperature measurements and instrumentation | Thermal-Fluids Central". "NTC thermistor » Resistor
Thermistor
Type of reciprocating heat engine
strictly classed as external combustion engines, but as external thermal engines. The working fluid can be of any composition and the system may be single-phase
External_combustion_engine
the highway, thermal fluids from this depth rises through a deep fault to the surface. In the area south of the highway, thermal fluid in the surface
Yangbajain_Geothermal_Field
Impact structure in Western Australia
authors found that skeletal zircon recrystallized during impact-related thermal-fluid activity yields an age of 3.024 billion years, corroborated by an independent
Miralga_impact_structure
Aliphatic petroleum solvent used in lighting charcoal in a barbecue grill
Coast Air Quality Management District requires that all charcoal lighter fluids sold in its jurisdiction (essentially Southern California) meet the air
Charcoal_lighter_fluid
Medical condition
Scalding is a form of thermal burn resulting from heated fluids such as boiling water or steam. Most scalds are considered first- or second-degree burns
Scalding
Materials' resistance to heat transfer
In heat transfer, thermal engineering, and thermodynamics, thermal conductance and thermal resistance are fundamental concepts that describe the ability
Thermal conductance and resistance
Thermal_conductance_and_resistance
Liquid that is attracted by poles of a magnet
magnetorheological fluids (MR fluids) are magnetic fluids with larger particles. That is, a ferrofluid contains primarily nanoparticles, while an MR fluid contains
Ferrofluid
Liquids that were trapped in the pores of sedimentary rocks
lithification and the connate fluids are usually expelled. If the escape route for these fluids is blocked, the pore fluid pressure can build up, leading
Connate_fluids
Sub-discipline of civil engineering
sub-discipline of civil engineering is concerned with the flow and conveyance of fluids, principally water and sewage. One feature of these systems is the extensive
Hydraulic_engineering
Nuclear spacecraft propulsion technology
A nuclear thermal rocket (NTR) is a type of thermal rocket where the heat from a nuclear reaction replaces the chemical energy of the propellants in a
Nuclear_thermal_rocket
Technology using sunlight for heat
Solar thermal energy (STE) is a form of energy and a technology for harnessing solar energy to generate thermal energy for use in industry, and in the
Solar_thermal_energy
American mechanical engineering professor (born 1951)
leading expert in the area of heat pipes and a major contributor to thermal-fluids engineering in multiphase heat transfer. Amir Faghri received his M
Amir_Faghri
Quantity relating heat flux and temperature difference
modes, different fluids, flow regimes, and under different thermohydraulic conditions. Often it can be estimated by dividing the thermal conductivity of
Heat_transfer_coefficient
Performance measure of a device that uses thermal energy
thermodynamics, the thermal efficiency ( η t h {\displaystyle \eta _{\rm {th}}} ) is a dimensionless performance measure of a device that uses thermal energy, such
Thermal_efficiency
Resistance of a fluid to shear deformation
viscosity is a property of a fluid that quantifies the resistance force acting on fluids when there is relative motion between fluid parcels. This resistance
Viscosity
Spacecraft engineering team at Penn State
Rattner, a mechanical engineering professor at Penn State's Multiscale Thermal Fluids and Energy. The team, which is privately funded, secured its first $2
Penn_State_Lunar_Lion_Team
Heat-transfer device that employs phase transition
capillary or other structure used to return the fluid to the hot area—are closely related. Working fluids are chosen according to the required operating
Heat_pipe
Temperature regulation of diodes
moving fluid, which for most LED applications will be air radiation - heat transfer from two bodies of different surface temperatures through Thermal radiation
Thermal management of high-power LEDs
Thermal_management_of_high-power_LEDs
Rate of transfer of heat through matter, expressed as a U-value
describe heat transfer in fluids while thermal transmittance is used to simplify an equation that has several different forms of thermal resistances. It is described
Thermal_transmittance
Finite element framework software
simulations have been conducted for thermal-fluids/neutronics for both pebble-bed and prismatic gas-cooled reactors and simple thermal-neutronics coupled LWR benchmark
MOOSE_(software)
Indian-American aerospace engineer
to graduate study at the University of Texas at Austin, focusing on thermal fluids and heat transport in graphene, and supervised there by Jayathi Murthy
Columbia_Mishra
model, simulate, and analyze physical systems across electromagnetics, fluid dynamics, astrophysics, particle physics, and Monte Carlo simulations. High-performance
List of computational physics software
List_of_computational_physics_software
Type of fluid
polymers, many solid suspensions, blood, and most highly viscous fluids. Newtonian fluids are named after Isaac Newton, who first used the differential equation
Newtonian_fluid
Equipment used to transfer heat between fluids
heat between a source and a working fluid. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to
Heat_exchanger
Column of one fluid moving through another
Buoyancy Effects in Fluids. Cambridge University Press. p. 165. Turner, J. S. (1962). The Starting Plume in Neutral Surroundings, J. Fluid Mech. vol 13, pp356-368
Plume_(fluid_dynamics)
Family of instruments for the measurement of the total mass flow rate of a fluid
total mass flow rate of a fluid, primarily gases, flowing through closed conduits. Thermal mass flow meters measure fluid mass flow rate indirectly by
Thermal_mass_flow_meter
Closed thermodynamic cycle involving fluid
Rankine cycles use organic fluids (such as hydrocarbons, perfluorocarbons, chlorofluorocarbon, and many others) as working fluids. Most of them have a critical
Transcritical_cycle
Distillate of petroleum
of industrial/mechanical capacities as a non-conductive coolant or thermal fluid in electric components, as it does not conduct electricity and functions
Mineral_oil
Object reducing thermal resistance
buildings can allow thermal signatures that indicate heat leaks. IRT detects thermal abnormalities that are linked to the movement of fluids through building
Thermal_bridge
Electromagnetic radiation generated by the thermal motion of particles
Thermal radiation is electromagnetic radiation emitted by the thermal motion of particles in matter. All matter with a temperature greater than absolute
Thermal_radiation
Distance a flow travels after entering a pipe before fully developed
velocity profile caused by viscous forces propagating from the pipe wall. Thermal entrance length describes the formation of a temperature profile. Awareness
Entrance length (fluid dynamics)
Entrance_length_(fluid_dynamics)
Branch of modern astronomy
Astrophysical fluid dynamics is a branch of modern astronomy which deals with the motion of fluids in outer space using fluid mechanics, such as those
Astrophysical_fluid_dynamics
Analysis and solving of problems that involve fluid flows
specialization of computational fluid dynamics in which computer science is used to study the mechanics of biological fluids such as blood (hemodynamics)
Computational_fluid_dynamics
Process breaking down complex organic molecules into simpler ones
ones. At about that time, fluid catalytic cracking was being explored and developed and soon replaced most of the purely thermal cracking processes in the
Cracking_(chemistry)
State of matter
capabilities. In addition to thermal conduction, liquids transmit energy by convection. In particular, because warmer fluids expand and rise while cooler
Liquid
District heating and cooling system using shared geothermal loops
grid-cooperating thermal systems moving now from research to implementation. The core of a TEN is the Ambient Temperature piping loop that conveys thermal fluid between
Thermal_energy_network
Physical phenomenon
normal fluids, such as the ability to free-flow under gravity, or to be pumped using fluid technologies. The resulting phenomenon is called fluidization. Fluidized
Fluidized_bed
Phenomenon inducing change in convection current within fluid
Thermal inductance refers to the phenomenon wherein a thermal change of an object surrounded by a fluid will induce a change in convection currents within
Thermal_inductance
Ratio of kinematic viscosity to thermal diffusivity
number, named for the German fluid dynamicist Ludwig Prandtl. It is defined as the ratio of momentum diffusivity to thermal diffusivity. The Prandtl number
Prandtl_number
Liquid state of the element hydrogen
fuels. Once liquefied, it can be maintained as a liquid for some time in thermally insulated containers. There are two spin isomers of hydrogen. Room temperature
Liquid_hydrogen
Turbojet engine component
2-3. ISBN 92-835-0674-X. Zellman Warhaft (1997). An Introduction to Thermal-Fluid Engineering: The Engine and the Atmosphere. Cambridge University Press
Afterburner
Pressurized gas or liquid in a heat engine
energy, waste heat, thermal solar energy or biomass and heat pumps and refrigeration cycles. The article addresses how working fluids affect technological
Working_fluid_selection
Power plant that generates electricity from heat energy
A thermal power station, also known as a thermal power plant, is a type of power station in which the heat energy generated from various fuel sources (e
Thermal_power_station
Coolants and lubricants used in metalworking
kinds of cutting fluids, which include oils, oil–water emulsions, pastes, gels, aerosols (mists), air, and other gases. Cutting fluids are made from petroleum
Cutting_fluid
Energy recovery heat exchanger
carries the inlet fluid for the boiler and thus decreases thermal energy intake of the inlet fluid. Heat pumps: Using an organic fluid that boils at a low
Waste_heat_recovery_unit
Process of keeping all parts of a spacecraft within acceptable temperature ranges
In spacecraft design, the function of the thermal control system (TCS) is to keep all the spacecraft's component systems within acceptable temperature
Spacecraft_thermal_control
Thermodynamic point where three matter phases exist
S2CID 122365938. Cengel, Yunus A.; Turner, Robert H. (2004). Fundamentals of thermal-fluid sciences. Boston: McGraw-Hill. p. 78. ISBN 0-07-297675-6. See Butane
Triple_point
A thermal immersion circulator is an electrically powered device that circulates and heats a warm fluid kept at an accurate and stable temperature. It
Thermal_immersion_circulator
Measurement of capacity of a material to conduct heat
for Thermal Conductivity, Thermal Diffusivity and Volumetric Heat Capacity of Engine Coolants and Related Fluids by Transient Hot Wire Liquid Thermal Conductivity
Thermal conductivity measurement
Thermal_conductivity_measurement
System storing hot fluid heat to heat the cold fluid
the hot fluid is intermittently stored in a thermal storage medium before it is transferred to the cold fluid. To accomplish this the hot fluid is brought
Regenerative_heat_exchanger
Physical quantity representing energy content per unit mass
Earth". New Scientist. Jun 4, 2016. Çengel, Yunus A.; Turner, Robert H. (2005). Fundamentals of Thermal-Fluid Sciences. McGraw Hill. ISBN 0-07-297675-6.
Specific_energy
Set of quasilinear hyperbolic equations governing adiabatic and inviscid flow
correspond to the Navier–Stokes equations with zero viscosity and zero thermal conductivity. The Euler equations can be applied to incompressible and
Euler equations (fluid dynamics)
Euler_equations_(fluid_dynamics)
Astronautical use of materials harvested in outer space
fuel (Al, Mg), energy storage (K, Na, Mn, Ti, Mg, Fe, Al, Si), and thermal fluids and coolants (NaK). Many processes that have been investigated for metal
In_situ_resource_utilization
Fluid whose density is a function of pressure only
{dp}{\rho {}}}} in Eq. 5-66 is integrable. Fluids having this characteristic are called barotropic fluids. James R Holton, An introduction to dynamic
Barotropic_fluid
The thermal history of Earth involves the study of the cooling history of Earth's interior. It is a sub-field of geophysics. The study of the thermal evolution
Thermal_history_of_Earth
Smart fluid whose viscosity increases in a magnetic field
particles have shown several improvements over conventional MR fluids. Nanowire-based fluids show no sedimentation after qualitative observation over a period
Magnetorheological_fluid
American fluid dynamicist (born 1956)
Sciences, New York University. 2019: Thermal Fluids Engineering Award from the American Society of Thermal and Fluids Engineering (ASTFE) 2014: Outstanding
Gretar_Tryggvason
Swirling and reverse current in a turbulent flow regime
been used to model different transitions in fluid flow regimes, which are used to thoroughly mix fluids and increase reaction rates within industrial
Eddy_(fluid_dynamics)
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THERMAL FLUIDS
THERMAL FLUIDS
THERMAL FLUIDS
THERMAL FLUIDS
THERMAL FLUIDS
THERMAL FLUIDS
THERMAL FLUIDS
THERMAL FLUIDS
THERMAL FLUIDS
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